CN106299691B - Inhibit device with the co-located coupled interference of dual-mode antenna that two-stage offsets function - Google Patents
Inhibit device with the co-located coupled interference of dual-mode antenna that two-stage offsets function Download PDFInfo
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/525—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between emitting and receiving antennas
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Abstract
Inhibit device with the co-located coupled interference of dual-mode antenna that two-stage offsets function, including sampler and interference rejection unit host, interference rejection unit host includes: the first directional coupler, first order quadrature bridge, the road first order I Bipolar attenuator, the road first order I correlator, the road first order Q Bipolar attenuator, the road first order Q correlator, first combiner, second combiner, second directional coupler, first power splitter, second level quadrature bridge, the second level road I Bipolar attenuator, the second level road I correlator, the second level road Q Bipolar attenuator, the second level road Q correlator, third combiner, 4th combiner, third directional coupler, second power splitter.The present invention is offseted relative to single-stage has bigger interference suppression ratio, in the case where not reducing frequency spectrum resource utilization rate, inhibits the coupled interference level between place dual-mode antenna altogether, ensures that co-located receiver works normally.
Description
Technical field
The invention belongs to interfere control field, and in particular to a kind of co-located coupling of dual-mode antenna for offseting function with two-stage
Interference rejection unit.
Background technique
Coupled interference between co-located dual-mode antenna is common one of form of electromagnetism interruption.Since dual-mode antenna is total to place cloth
It sets, the two spacing is small, isolation is low.The transmission power of transmitting antenna is higher, generates at the nigh receiving antenna of meeting biggish
Coupled interference level influences receiver normal work, and receiver obstruction is caused even to be burned out.
Interference source is the transmitting antenna in certain radio station, and generated electromagnetic interference is that have the narrowband of certain centre frequency sinusoidal
Signal；Disturbed object is the receiving antenna in another radio station.Interfere transmitting antenna (abbreviation transmitting antenna) can receive disturbed
Certain coupled voltages are generated at antenna (abbreviation receiving antenna), there are two types of signal compositions for tool at such receiving antenna: useful letter
Number and interference signal, coupled voltages generate be exactly interference signal.Useful signal and interference signal are all narrowband sinusoidal signal, no
Crossing the two has different centre frequencies, and centre frequency is not fixed, therefore cannot be using the filter with preset parameter.
The patent of invention of Publication No. ZL201010198092.0 discloses a kind of ultra-short wave electromagnetic interference cancelling device, should
Device uses single-stage interference cancellation scheme, and coupled interference rejection ability is relatively small, has biggish remaining interference level.
Summary of the invention
The technical problem to be solved by the present invention is to In view of the above shortcomings of the prior art, provide a kind of with two-stage
The co-located coupled interference of dual-mode antenna for offseting function inhibits device, and offseting relative to single-stage has bigger interference suppression ratio,
In the case where not reducing frequency spectrum resource utilization rate, inhibits the coupled interference level between place dual-mode antenna altogether, ensure co-located reception
Machine works normally.
Used technical solution is the present invention to solve above-mentioned technical problem:
Inhibit device, including sampler and AF panel dress with the co-located coupled interference of dual-mode antenna that two-stage offsets function
Host is set, sampler includes three ports in input, output end and coupled end, and the input terminal of sampler is connect with transmitter, defeated
Outlet is connect with transmitting antenna；The input terminal of interference rejection unit host and the coupled end of sampler are connected, output end with connect
Receipts machine is connected；
The interference rejection unit host includes:
First directional coupler, input terminal connect the coupled end of sampler, and output end connects first order quadrature bridge
Input terminal, coupled end connect second level quadrature bridge input terminal；
First order quadrature bridge, four output ends are respectively the road I output end, the road I coupled end, the road Q output end and the road Q coupling
Close end；
The road the I output end of the road first order I Bipolar attenuator, input terminal and first order quadrature bridge is connected；
The road first order I correlator, including the road I sampled signal end, the road I error signal input and I road transport calculate output end, I
Road sampled signal end and the road the I coupled end of first order quadrature bridge are connected, and I road transport calculates output end and the road first order I is bipolar declines
The control terminal for subtracting device is connected；
The road the Q output end of the road first order Q Bipolar attenuator, input terminal and first order quadrature bridge is connected；
The road first order Q correlator, including the road Q sampled signal end, the road Q error signal input and Q road transport calculate output end, Q
Road sampled signal end and the road the Q coupled end of first order quadrature bridge are connected, and Q road transport calculates output end and the road first order Q is bipolar declines
The control terminal for subtracting device is connected；
First combiner, two input terminal respectively with first order I road Bipolar attenuator and the road first order Q Bipolar attenuator
Output end be connected；
Second combiner, two input terminal are connected with the output end of the first combiner and receiving antenna respectively；
Second directional coupler, input terminal couple with the output end of the second combiner；
First power splitter, input terminal connect the second directional coupler coupled end, two output end is separately connected first
The error signal input of the road grade I correlator and the error signal input of the road first order Q correlator；
Second level quadrature bridge, four output ends are respectively the road I output end, the road I coupled end, the road Q output end and the road Q coupling
Close end；
The road the I output end of the second level road I Bipolar attenuator, input terminal and second level quadrature bridge is connected；
The second level road I correlator, including sampled signal input terminal, error signal input and operation output end, sampling letter
The road the I coupled end of number input terminal and second level quadrature bridge is connected, the control of operation output end and the road second level I Bipolar attenuator
End processed is connected；
The road the Q output end of the second level road Q Bipolar attenuator, input terminal and second level quadrature bridge is connected；
The second level road Q correlator, including sampled signal input terminal, error signal input and operation output end, sampling letter
The road the Q coupled end of number input terminal and second level quadrature bridge is connected, the control of operation output end and the road second level Q Bipolar attenuator
End processed is connected；
Third combiner, two input terminal respectively with the second level road I Bipolar attenuator and the second level road Q Bipolar attenuator
Output end be connected；
4th combiner, the output with the output end of third combiner and the second directional coupler respectively of two input terminal
End is connected；
Third directional coupler, input terminal connect the 4th combiner output end, and output end connects receiver；
Second power splitter, input terminal connect third directional coupler coupled end, and two output ends are separately connected the second level road I
The error signal input of correlator and the second level road Q correlator.
According to the above scheme, the road first order I Bipolar attenuator includes input transmission line transformer, PIN diode electric bridge
With output transmission line transformer；The outside of input transmission line transformer uses differential mode structure, and inside using common mode configuration, inside
With outer coil equal turn numbers；Output transmission line transformer device structure is identical as input transmission line transformer；Input transmission line transformation
Device inner coil intermediate input is control terminal, output transmission line transformer inner coil middle ground；PIN diode electric bridge is by four
Branch PIN diode positive and negative anodes are sequentially connected composition.
The road the first order Q Bipolar attenuator, the second level road I Bipolar attenuator, the second level road Q Bipolar attenuator and
The road level-one I Bipolar attenuator structure is identical.
According to the above scheme, the first order I road correlator is by four-quadrant analog multiplication circuit, low-pass filter circuit and electricity
Pressure follows circuit to be connected in series；The road the first order Q correlator, the second level road I correlator, the second level road Q correlator and
The road level-one I correlator configuration is identical.
According to the above scheme, the four-quadrant analog multiplication circuit uses analog multiplier chip AD835；The low pass
Filter circuit and voltage follower circuit are made of integrated transporting discharging chip OP07.
The working principle of the invention:
Assuming that be coupled to the interference signal on receiving antenna because of the high-power transmitting of transmitting antenna is indicated with equation (1)
Wherein N (t) is interference signal, and A is the normalization amplitude of interference signal, and ω is interference signal angular frequency, φ0It is dry
The initial phase of signal is disturbed, t is time, AI' be the road interference signal I component normalization amplitude, AQ' it is the road interference signal Q component
Normalization amplitude.In order to offset the interference signal, the present invention samples interference signal from jamming transmitter, and by sampled signal etc.
It is divided into orthogonal I, Q two-way of phase, can be indicated with following equations
XI(t)=sin (ω t)
XQ(t)=cos (ω t)
The wherein road I sampled signal XI(t) and the road Q sampled signal XQ(t) angular frequency is identical as interference signal N (t), XI(t)
And XQ(t) normalization amplitude is 1；The weighted sum of two-way sampled signal is denoted as offseting signal C (t), is expressed as
C (t)=AI·XI(t)+AQ·XQ(t) (2)
Wherein AIAnd AQRespectively indicate the weight coefficient of I, Q two-way.Reduced equation (1) and equation (2), it can be seen that equation
(1), (2) the right and left is separately summed and can obtain
N (t)+C (t)=(AI+AI')sin(ωt)+(AQ+AQ')cos(ωt) (3)
According to equation (3), work as AI=-AI' and AQ=-AQ' when, interference signal is 0 with the sum of signal is offseted, i.e. interference letter
It number is cancelled.
It is offseted from equation (3) it can also be seen that I, Q two-way sampled signal amplitude only need to be controlled simultaneously and can reach control
The effect of signal amplitude and phase makes to offset signal and interference signal constant amplitude reverse phase, so that it may eliminate the interference in receiving antenna
Signal
Sampler samples interference signal from jamming transmitter in the present invention.First order quadrature bridge, the road first order I are bipolar
Attenuator, the road first order Q Bipolar attenuator be sampled the signal first order amplitude and phase adjustment, be allowed to in receiving antenna
Interference signal constant amplitude reverse phase；First order I road correlator and the road first order Q correlator then carry out error signal and sampled signal
Correlation operation, operation result control the road first order I, the road Q Bipolar attenuator respectively, constitute negative feedback loop, realize interference letter
Number to the greatest extent offset.Second level quadrature bridge, the second level road I Bipolar attenuator, the second level road Q Bipolar attenuator are taken
The amplitude and phase of the sample signal second level adjust, and further eliminate remaining interference signal；The second level road I correlator and second level Q
Road correlator then carries out correlation operation to error signal and sampled signal, and it is double that operation result controls the second level road I, the road Q respectively
Pole attenuator.
Compared with prior art, the present invention has the following advantages:
1, by the closed-loop vector modulation and relevant feedback operation to jamming transmitter sampled signal, make itself and coupled interference
Constant amplitude reverse phase synthesizes by signal and offsets coupled interference, ensures that co-located receiver works normally；The two poles of the earth interference cancellation is increased newly
Function can significantly promote co-located coupled interference degree of suppression, promote interference rejection unit performance indicator；
2, it is introduced into the result of first order interference cancellation as input among the interference cancellation circuit of the second level, in contrast to
Single-stage interference cancellation can further improve interference suppression ratio.
Detailed description of the invention
Fig. 1 is the structural block diagram that the present invention inhibits device with the co-located coupled interference of dual-mode antenna that two-stage offsets function.
Specific embodiment
Below according to specific embodiment and in conjunction with attached drawing, the present invention is described in further detail.
Shown in referring to Fig.1, the co-located coupled interference of dual-mode antenna of function is offseted described in the embodiment of the present invention with two-stage
Inhibit device, including sampler and interference rejection unit host.
Sampler includes three ports in input, output end and coupled end, and input terminal and the transmitter of sampler are connected,
Output end is connected with transmitting antenna, and coupled end is connected with interference rejection unit host；The effect of sampler is from transmitter
The middle interference signal for obtaining certain energy, is transported among interference rejection unit host, carries out amplitude and phase transformation, be allowed to
Interference signal constant amplitude reverse phase in receiving antenna.The degree of coupling of sampler is according to dry in transmitter transmission power and receiving antenna
The ratio for disturbing power determines that usual value range is 10~20dB.Sampler output end obtains most of power of input terminal,
The normal transmission state of transmitter is not influenced, and interference rejection unit host only obtains very small part transmission power.
Interference rejection unit host includes:
First directional coupler, input terminal connect the coupled end of sampler, sampled signal are divided into two-way, output end
The input terminal of first order quadrature bridge is connected, first order interference cancellation is used for, coupled end connects the defeated of second level quadrature bridge
Enter end, is used for second level interference cancellation；
First order quadrature bridge, for sampled signal to be divided into, amplitude is equal, two-way output signal of quadrature in phase；The
Four output ends of level-one quadrature bridge are respectively the road I output end, the road I coupled end, the road Q output end and the road Q coupled end；The first order
Use electric resistance partial pressure between the road the I coupled end of quadrature bridge, the road Q coupled end and the road I output end, the road Q output end, the road I output end,
The road Q output end is identical as the signal phase of the road I coupled end, the road Q coupled end, the degree of coupling phase of the road I coupled end and the road Q coupled end
Deng about 20dB；
The road first order I Bipolar attenuator, input terminal connect the road the I output end of first order quadrature bridge, for first
The signal of the road the I output end output of grade quadrature bridge carries out amplitude fading；The road first order I Bipolar attenuator is become by input transmission line
Depressor, PIN diode electric bridge and output transmission line transformer composition, input, output transmission line transformer use balanced-unbalanced
Structure, outside use differential mode mode using common mode, inside, and outside is identical as the coil turn of inside, PIN diode electric bridge
It is sequentially connected and is constituted by four PIN diode D1, D2, D3 and D4 positive and negative anodes, PIN diode model UM4301；When direct current control
When curent change processed, the RF impedance of Bipolar attenuator also changes therewith, and control electric current becomes smaller, RF impedance increases, for defeated
The decaying for entering signal increases, and control electric current becomes larger, RF impedance reduces, the decaying of input signal is reduced；Work as DC control
When current polarity changes, the polarity of output signal also can accordingly change, DC control current be positive polarity chron, output
Voltage is also positive polarity, and be negative polarity chron, output voltage of DC control current is also negative polarity；
The road first order I correlator, including the road I sampled signal end, the road I error signal input and I road transport calculate output end；I
Road sampled signal end and the road the I coupled end of first order quadrature bridge are connected；The road I error signal input and the first power splitter
Output end is connected all the way；The control terminal that I road transport calculates output end and the road first order I Bipolar attenuator is connected, and controls first order I
The amplitude fading and polarity of road Bipolar attenuator constitute negative feedback loop, realize that interference signal is offset to the greatest extent.The first order
The road I correlator includes four-quadrant analog multiplication circuit, low-pass filter circuit and voltage follower circuit three parts, samples and believes to the road I
Number related operation is carried out, and the error signal of negative feedback loop is added, so that operation result is more accurate；
The road first order Q Bipolar attenuator, structure is identical as first order I road Bipolar attenuator, and input terminal and the first order are just
The road the Q output end of alternating current bridge is connected, and the signal for the road the Q output end output to first order quadrature bridge carries out amplitude and declines
Subtract；
The road first order Q correlator, it is identical as first order I road correlator configuration, including the road Q sampled signal end, the road Q error letter
Number input terminal and Q road transport calculate output end, and the road Q sampled signal end and the road the Q coupled end of first order quadrature bridge are connected, Q road transport
The control terminal for calculating output end and the road first order Q Bipolar attenuator is connected；
First combiner, two input terminal respectively with first order I road Bipolar attenuator and the road first order Q Bipolar attenuator
Output end be connected；For by pass through amplitude and polarity adjustment after I, Q two-way sampled signal synthesize, formation offsets
Signal；
Second combiner, two input terminal are connected with the output end of the first combiner and receiving antenna respectively；For
Receiving antenna signal is synthesized with signal is offseted, formation error signal, i.e. first order surviving error signal, in error signal
It include useful signal composition and remaining interference signal composition two parts；
The output end of second directional coupler, input terminal and the second combiner is connected, first order surviving error signal
It is divided into two-way, carries out related operation, input of the another way as second level interference cancellation all the way；
The coupled end of first power splitter, input terminal and the second directional coupler is connected, and error signal is divided into two
Road, two output ends are separately connected the error signal input of the road first order I correlator and the error letter of the road first order Q correlator
Number input terminal；
Second level quadrature bridge, the second level road I Bipolar attenuator, the second level road Q Bipolar attenuator, the second level road I are related
Device, the second level road Q correlator are used for the interference cancellation and correlation operation of the second level, identical as the first level structure.
Four-quadrant analog multiplication circuit is constituted using analog multiplier chip AD835, to sampled signal XI(t) believe with error
Number E (t) carries out multiplying, as shown in equation (4):
S (t) be useful signal, the dc component of output voltage contain remaining interference signal amplitude and with sampling
The phase relation information of signal.
The output end of four-quadrant analog multiplication circuit is connected with the input terminal of low-pass filter circuit, low-pass filter circuit by
Integrated transporting discharging chip OP07 is constituted, for filtering out rear three on the right of high-frequency signal composition, the i.e. equation (4) in multiplication result
, the output signal of such low-pass filter circuit just only remaining dc component.
The output end of low-pass filter circuit is connected with the input terminal of voltage follower circuit, and voltage follower circuit is by integrated fortune
The characteristics of putting chip OP07 composition, OP07 high input impedance, low output impedance is utilized, enhances the bringing onto load energy of output signal
Power avoids influencing each other between output voltage and load circuit.Output signal, that is, correlation calculating circuit of low-pass filter circuit
Output signal.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to of the invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
The obvious changes or variations that bright spirit is extended out are still in the protection scope of this invention.
Claims (5)
1. inhibiting device, including sampler and interference rejection unit with the co-located coupled interference of dual-mode antenna that two-stage offsets function
Host, sampler include three ports in input, output end and coupled end, and the input terminal of sampler is connect with transmitter, output
End is connect with transmitting antenna；The input terminal of interference rejection unit host and the coupled end of sampler are connected, output end and reception
Machine is connected, which is characterized in that the interference rejection unit host includes:
First directional coupler, input terminal connect the coupled end of sampler, and output end connects the defeated of first order quadrature bridge
Enter end, coupled end connects the input terminal of second level quadrature bridge；
First order quadrature bridge, four output ends are respectively the road I output end, the road I coupled end, the road Q output end and the coupling of the road Q
End；
The road the I output end of the road first order I Bipolar attenuator, input terminal and first order quadrature bridge is connected；
The road first order I correlator, including the road I sampled signal end, the road I error signal input and I road transport calculate output end, and the road I takes
Sample signal end and the road the I coupled end of first order quadrature bridge are connected, and I road transport calculates output end and the road first order I Bipolar attenuator
Control terminal be connected；
The road the Q output end of the road first order Q Bipolar attenuator, input terminal and first order quadrature bridge is connected；
The road first order Q correlator, including the road Q sampled signal end, the road Q error signal input and Q road transport calculate output end, and the road Q takes
Sample signal end and the road the Q coupled end of first order quadrature bridge are connected, and Q road transport calculates output end and the road first order Q Bipolar attenuator
Control terminal be connected；
First combiner, two input terminal are defeated with first order I road Bipolar attenuator and the road first order Q Bipolar attenuator respectively
Outlet is connected；
Second combiner, two input terminal are connected with the output end of the first combiner and receiving antenna respectively；
Second directional coupler, input terminal couple with the output end of the second combiner；
First power splitter, input terminal connect the second directional coupler coupled end, two output end is separately connected the road first order I
The error signal input of correlator and the error signal input of the road first order Q correlator；
Second level quadrature bridge, four output ends are respectively the road I output end, the road I coupled end, the road Q output end and the coupling of the road Q
End；
The road the I output end of the second level road I Bipolar attenuator, input terminal and second level quadrature bridge is connected；
The second level road I correlator, including sampled signal input terminal, error signal input and operation output end, sampled signal are defeated
Enter end and the road the I coupled end of second level quadrature bridge is connected, the control terminal of operation output end and the road second level I Bipolar attenuator
It is connected；
The road the Q output end of the second level road Q Bipolar attenuator, input terminal and second level quadrature bridge is connected；
The second level road Q correlator, including sampled signal input terminal, error signal input and operation output end, sampled signal are defeated
Enter end and the road the Q coupled end of second level quadrature bridge is connected, the control terminal of operation output end and the road second level Q Bipolar attenuator
It is connected；
Third combiner, two input terminal are defeated with the second level road I Bipolar attenuator and the second level road Q Bipolar attenuator respectively
Outlet is connected；
4th combiner, two input terminal output end phase with the output end of third combiner and the second directional coupler respectively
Connection；
Third directional coupler, input terminal connect the 4th combiner output end, and output end connects receiver；
Second power splitter, input terminal connect third directional coupler coupled end, and two output ends are separately connected the second level road I correlation
The error signal input of device and the second level road Q correlator.
2. the dual-mode antenna co-located coupled interference according to claim 1 for offseting function with two-stage inhibits device, special
Sign is that the road first order I Bipolar attenuator includes input transmission line transformer, PIN diode electric bridge and output transmission line
Transformer；The outside of input transmission line transformer uses differential mode structure, and inner and outer coil turn using common mode configuration, inside
Number is equal；Output transmission line transformer device structure is identical as input transmission line transformer；In input transmission line transformer inner coil
Between input be control terminal, output transmission line transformer inner coil middle ground；PIN diode electric bridge is by four PIN diodes
Positive and negative anodes are sequentially connected composition.
3. the dual-mode antenna co-located coupled interference according to claim 2 for offseting function with two-stage inhibits device, special
Sign is, the road the first order Q Bipolar attenuator, the second level road I Bipolar attenuator, the second level road Q Bipolar attenuator and
The road level-one I Bipolar attenuator structure is identical.
4. the dual-mode antenna co-located coupled interference according to claim 1 for offseting function with two-stage inhibits device, special
Sign is that the first order I road correlator is by four-quadrant analog multiplication circuit, low-pass filter circuit and voltage follower circuit string
Join；The road first order Q correlator, the second level road I correlator, the second level road Q correlator and the road the first order I correlator
Structure is identical.
5. the dual-mode antenna co-located coupled interference according to claim 4 for offseting function with two-stage inhibits device, special
Sign is that the four-quadrant analog multiplication circuit uses analog multiplier chip AD835；The low-pass filter circuit and electricity
Pressure follows circuit to be made of integrated transporting discharging chip OP07.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541559A (en) * | 2018-11-12 | 2019-03-29 | 北京航空航天大学 | A kind of broadband analogue complex correlator real-time calibration method based on PSK technology |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107659333B (en) * | 2017-09-19 | 2019-10-22 | 中国人民解放军海军工程大学 | The co-located interference cancellation device in multi-section transceiver radio station |
| CN109525279B (en) * | 2018-10-16 | 2020-08-14 | 北京千方科技股份有限公司 | Self-interference elimination device, radio frequency reader-writer and radio frequency identification system |
| CN109450569B (en) * | 2018-11-19 | 2021-05-25 | 中国舰船研究设计中心 | Method for rapidly predicting frequency point mutual interference of electronic equipment |
| CN114157387B (en) * | 2021-11-30 | 2024-04-09 | 湖北工业大学 | Self-adaptive co-location interference cancellation system and method with auxiliary channel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294764A (en) * | 1998-11-19 | 2001-05-09 | 日本电信电话株式会社 | Adaptive array antenna device |
| KR20040035316A (en) * | 2002-10-22 | 2004-04-29 | 한국전자통신연구원 | Interference signal cancellation system and relay system therefor |
| CN201348786Y (en) * | 2009-01-08 | 2009-11-18 | 成都九洲电子信息系统有限责任公司 | Supersensitive radio frequency identification device |
| CN102237906A (en) * | 2010-04-20 | 2011-11-09 | 英特赛尔美国股份有限公司 | Systems and methods for improving antenna isolation using signal cancellation |
| CN102571655A (en) * | 2012-01-21 | 2012-07-11 | 华为技术有限公司 | Method and device for implementing interference cancellation and filters |
| CN101854183B (en) * | 2010-06-11 | 2012-09-26 | 中国舰船研究设计中心 | Ultra-short wave electromagnetic interference cancelling device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000156657A (en) * | 1998-11-20 | 2000-06-06 | Antenna Giken Kk | Near disturbance wave eliminating device |
| KR100434355B1 (en) * | 2001-07-27 | 2004-06-04 | 엘지전자 주식회사 | Apparatus for repeater of non-varied wave of broadcasting signal |
| JP2008271180A (en) * | 2007-04-20 | 2008-11-06 | Matsushita Electric Ind Co Ltd | Wireless communication apparatus |
| CN102347778B (en) * | 2011-08-05 | 2014-01-22 | 中国舰船研究设计中心 | Self-adapting interference cancellation device and debugging method thereof |
-
2016
- 2016-08-09 CN CN201610649068.1A patent/CN106299691B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1294764A (en) * | 1998-11-19 | 2001-05-09 | 日本电信电话株式会社 | Adaptive array antenna device |
| KR20040035316A (en) * | 2002-10-22 | 2004-04-29 | 한국전자통신연구원 | Interference signal cancellation system and relay system therefor |
| CN201348786Y (en) * | 2009-01-08 | 2009-11-18 | 成都九洲电子信息系统有限责任公司 | Supersensitive radio frequency identification device |
| CN102237906A (en) * | 2010-04-20 | 2011-11-09 | 英特赛尔美国股份有限公司 | Systems and methods for improving antenna isolation using signal cancellation |
| CN101854183B (en) * | 2010-06-11 | 2012-09-26 | 中国舰船研究设计中心 | Ultra-short wave electromagnetic interference cancelling device |
| CN102571655A (en) * | 2012-01-21 | 2012-07-11 | 华为技术有限公司 | Method and device for implementing interference cancellation and filters |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541559A (en) * | 2018-11-12 | 2019-03-29 | 北京航空航天大学 | A kind of broadband analogue complex correlator real-time calibration method based on PSK technology |
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