CN103684520A - Satellite intermediate frequency signal conversion device applied to on-board two-way communication antenna - Google Patents
Satellite intermediate frequency signal conversion device applied to on-board two-way communication antenna Download PDFInfo
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- CN103684520A CN103684520A CN201310656816.5A CN201310656816A CN103684520A CN 103684520 A CN103684520 A CN 103684520A CN 201310656816 A CN201310656816 A CN 201310656816A CN 103684520 A CN103684520 A CN 103684520A
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Abstract
The invention discloses a satellite intermediate frequency signal conversion device applied to an on-board two-way communication antenna. The device comprises an outdoor converter, a one-way rotating connector and an indoor converter, wherein the outdoor converter, the one-way rotating connector and the indoor converter are sequentially connected, an upper-conversion power amplifier is connected between the outdoor converter and the satellite antenna, the satellite antenna is connected with the outdoor converter through a tuner, communication equipment such as a computer and a telephone is connected with the indoor converter through a satellite modem, uplink signals transmitted by the communication equipment are subjected to frequency mixing processing through the indoor converter, then, difference frequency operation and filtering treatment are performed through the indoor converter, downlink signals in mixed signals are filtered, finally, the uplink signals are subjected to power amplification and transmitted to a satellite through the satellite antenna, the uplink signals and the downlink signals can be simultaneously transmitted in the same cable, the mutual-interference problem caused when the uplink signals and the downlink signals are simultaneously transmitted in the same cable is effectively solved with low cost, the utilization rate of the cable is high, and the compatibility is high.
Description
Technical field
The present invention relates to wireless communication technology field, be specifically related to a kind of cost low, cable utilance is high, compatible strong, can effectively solve the satellite intermediate frequency chromacoder that phase mutual interference occurs when upward signal and downstream signal transmit in same cable.
Background technology
In satellite TV signal transmitting procedure, for improving channel bandwidth utilization ratio, often signal is divided into two kinds of contrary modes of polarization and propagates, as linear polarization is divided into horizontal polarization and perpendicular polarization, circular polarization is divided into left-handed polarization and right-hand polarization.For fixed-line subscriber, often a surface antenna only connects a receiver, the satellite-signal of the different polarization modes of mode selective reception that receiver can switch by 13V/18V voltage.But for mobile vehicle users such as automobile, boats and ships, because mobile satellite antenna is expensive, need many receivers to share the signal of a surface antenna.And mobile satellite antenna is in order to adapt to carrier movement, need to carry out real-time 360 ° and adjust orientation angles, single channel satellite intermediate frequency signal generally can only be transmitted in the place of being rotatably connected, when sharing a mobile satellite antenna, many receivers can there is sharing conflict, many receivers can only receive the satellite-signal of same polarization mode simultaneously, thereby cannot normally receive whole TV programme of direct broadcasting satellite.
Being present in that current this problem is general is vehicle-mounted, among boat-carrying satellite tv antenna system, also be present in vehicle-mounted, boat-carrying two-way communication antenna simultaneously, this antenna is not only wanted receiving satellite signal, the signal of simultaneously also will launching an artificial satellite, conventional Single-channel Rolling joint cannot meet user demand, can only use Two channels rotating joint, but Two channels rotating joint is not only expensive, and useful life is not high, this is one of major technique bottleneck that restriction is vehicle-mounted, boat-carrying two-way communication antenna develops always.And, in satellite-signal transmitting procedure, because the frequency of upward signal and the frequency range of downstream signal are all between 950～2150MHz, while transmitting, can cause frequency interferences in same cable, the signal that affects normal satellite signal receiving and communication apparatus sends, the signal producing while transmitting in same cable in order to solve upward signal and downstream signal disturbs, general satellite communication device is all to adopt many cables to coordinate with Two channels rotating joint or multipassage rotary joint to carry out multiple signals to separate transmission, on the one hand, Two channels rotating joint and multipassage rotary joint are expensive, useful life is not long, on the other hand, when cable distance is long, can greatly increase construction cost, the maintenance cost in material cost and later stage.
Summary of the invention
The defect existing in order to solve above-mentioned technology, the invention provides a kind of cost low, and cable utilance is high, compatible strong, can effectively solve the satellite intermediate frequency chromacoder that phase mutual interference occurs when upward signal and downstream signal transmit in same cable.
The present invention realizes the technical scheme that above-mentioned technique effect adopts:
A kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, comprise successively outdoor transducer, single channel swivel joint and indoor transducer that connect and can both-way communication, between the output of described outdoor transducer and the input of satellite antenna, be connected with up-conversion power amplifier, the input of described outdoor transducer is connected with satellite antenna by tuner, and between described indoor transducer and communication apparatus, modem is connected via satellite.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, described indoor transducer comprises first signal blender, described first signal blender is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of described first signal blender and the upward signal output of described satellite modem, be provided with upward signal circuit, between the downstream signal output of described first signal blender and the downstream signal input of described satellite modem, be provided with downstream signal circuit.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, in the upward signal circuit of described first signal blender, be provided with the first frequency mixer of series connection, described the first frequency mixer is connected with first signal source, and the mixed signal end of described first signal blender is connected with one end of described single channel swivel joint.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, described outdoor transducer comprises secondary signal blender, described secondary signal blender is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of described secondary signal blender and the input of described up-conversion power amplifier, be provided with upward signal circuit, between the downstream signal input of described secondary signal blender and the output of described tuner, be provided with downstream signal circuit.
Above-mentioned a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, in the upward signal circuit of described secondary signal blender, be provided with the second frequency mixer and the filter of series connection, the output of described the second frequency mixer is connected with the input of described filter, described the second frequency mixer is connected with secondary signal source, and the mixed signal end of described the second frequency mixer is connected with the other end of described single channel swivel joint.
Beneficial effect of the present invention is: the upward signal that this device transmits the communication apparatus such as computer telephone is sent into indoor transducer and carried out Frequency mixing processing, then through indoor transducer, carry out difference frequency computing and filtering processing, filter out the downstream signal in mixed signal, finally to upward signal carry out power amplification and via satellite antenna transmission to satellite, realized and in same cable, transmitted upward signal and downstream signal simultaneously, thereby eliminated the dependence of prior art to Two channels rotating joint and multipassage rotary joint, reduced cost, mutual interference problem when efficiently solving upward signal and downstream signal and transmitting in same cable, cable utilance is high, compatible strong, can completely compatible existing boat-carrying, carry-on-vehicle satellite television antenna and two-way communication antenna, there is very strong applicability and significant realistic meaning.
Accompanying drawing explanation
Fig. 1 is that module of the present invention connects block diagram;
Fig. 2 is the internal structure circuit diagram of indoor transducer of the present invention;
Fig. 3 is the internal structure circuit diagram of outdoor transducer of the present invention;
In figure: 1-satellite antenna, 2-up-conversion power amplifier, 3-tuner, the outdoor transducer of 4-, 5-single channel swivel joint, the indoor transducer of 6-, 7-satellite modem, 8-communication apparatus, 41-secondary signal blender, 42-the second frequency mixer, 43-filter, 44-secondary signal source, 61-first signal blender, 62-the first frequency mixer, 63-first signal source.
Embodiment
For making that the present invention is done to further understanding, below with reference to Figure of description and specific embodiment, the invention will be further described:
As shown in Figure 1 to Figure 3, a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, it comprises successively outdoor transducer 4, single channel swivel joint 5 and indoor transducer 6 that connect and can both-way communication, between the input of the output of outdoor transducer 4 and satellite antenna 1, be connected with up-conversion power amplifier 2, the input of outdoor transducer 4 is connected with satellite antenna 1 by tuner 3, and between the communication apparatus 8 such as indoor transducer 6 and computer, phone, modem 7 is connected via satellite.
During enforcement, as a preferred embodiment of the present invention, the frequency range that satellite antenna 1 is transferred to the downstream signal of the communication apparatus 8 such as computer, phone is 950～2150MHz, the frequency range that the communication apparatus such as computer, phone 8 is transferred to the upward signal of satellite antenna is 950～2150MHz, when communication apparatus 8 upwards transmits upward signal, first through satellite modem 7, carry out upward signal modulation, then the uplink signal transmissions after modulation to indoor transducer 6 is carried out to frequency inverted.Particularly, in the preferred embodiment, indoor transducer 6 comprises first signal blender 61, first signal blender 61 is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of first signal blender 61 and the upward signal output of satellite modem 7, be provided with upward signal circuit, in the upward signal circuit of this first signal blender 61, be provided with the first frequency mixer 62 of series connection, this first frequency mixer 62 is connected with first signal source 63, the frequency of the signal of first signal source 63 outputs is 1200MHz, for mixing with upward signal, mixing overlap-add procedure through the first frequency mixer 62, original frequency is at frequency inverted to the 2150～3350MHz of the upward signal of 950～2150MHz range section, then enter first signal blender 61 to outdoor transmission, when the upward signal of process frequency inverted passes through first signal blender 61 to outdoor transmission, also can be with the downstream signal going down that mixes, but satellite modem 7 receives only the frequency within the scope of 950～2150MHz, therefore, do not affect receiving and demodulating downstream signal.The mixed signal end of first signal blender 61 is connected with one end of single channel swivel joint 5, upward signal, downstream signal can transmitted in both directions between indoor transducer 6 and single channel swivel joint 5, between the downstream signal output of first signal blender 61 and the downstream signal input of satellite modem 7, be provided with downstream signal circuit, from the downstream signal of tuner 3 and the upward signal of first signal blender 61, mix downwards modem 7 via satellite and transfer to communication apparatus 8.
At upward signal after indoor transducer 6, upward signal after frequency inverted is transferred to outdoor by coaxial cable and single channel swivel joint 5, upward signal after conversion forms mixed signal together with downstream signal, mixed signal comprises the upward signal that downstream signal that frequency is 950～2150MHz and frequency are 2150～3350MHz, in order to filter out the downstream signal in the mixed signal of upwards transmitting, before being transferred to satellite antenna 1, mixed signal needs to carry out filtering processing and difference frequency computing.Particularly, in this embodiment, the other end of single channel swivel joint 5 is transferred to mixed signal in outdoor transducer 4, to carry out filtering processing and difference frequency computing, outdoor transducer 4 comprises secondary signal blender 41, secondary signal blender 41 is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of secondary signal blender 41 and the input of up-conversion power amplifier 2, be provided with upward signal circuit, between the downstream signal input of secondary signal blender 41 and the output of tuner 3, be provided with downstream signal circuit.In the upward signal circuit of secondary signal blender 41, be provided with the second frequency mixer 42 and the filter 43 of series connection, the output of the second frequency mixer 41 is connected with the input of filter 43, the second frequency mixer 41 is connected with secondary signal source 44, the signal frequency of secondary signal source 44 outputs is 1200MHz, mixed signal in transferring to outdoor transducer 4 after, the signal source of mixed signal and 1200MHz is done difference frequency computing, after difference frequency computing, downstream signal in mixed signal from the frequency inverted of 950～2150MHz below 950MHz, upward signal in mixed signal drops between 950～2150MHz from the frequency of 2150～3350MHz, upward signal after frequency declines and downstream signal more after filtering device 43 carry out filtering processing, filter out 950MHz with the signal of lower frequency, therefore, downstream signal in mixed signal is filtered, uplink signal transmissions is carried out up-conversion and power amplification to up-conversion power amplifier, antenna 1 is transmitted to satellite via satellite, and satellite antenna 1 is given communication apparatus 8 transmission of downlink signal downwards by tuner 3.
More than just as a preferred embodiment of the present invention, the frequency in first signal source 63 and secondary signal source 44 is not limited to 1200MHz, according to actual user demand, can adopt the signal source of different frequency by two-way or the identical intermediate-freuqncy signal of channelized frequencies scope, being transformed into different frequency bands transmits, after over recovery conversion, normally use, the multichannel intermediate-freuqncy signal that can realize single coaxial cable is multiplexing again.
In sum, the upward signal that this device transmits the communication apparatus such as computer telephone is sent into indoor transducer and is carried out Frequency mixing processing, then through indoor transducer, carry out difference frequency computing and filtering processing, filter out the downstream signal in mixed signal, finally to upward signal carry out power amplification and via satellite antenna transmission to satellite, realized and in same cable, transmitted upward signal and downstream signal simultaneously, thereby eliminated the dependence of prior art to Two channels rotating joint and multipassage rotary joint, reduced cost, mutual interference problem when efficiently solving upward signal and downstream signal and transmitting in same cable, cable utilance is high, compatible strong, can completely compatible existing boat-carrying, carry-on-vehicle satellite television antenna and two-way communication antenna, there is very strong applicability and significant realistic meaning.
More than show and described basic principle of the present invention, principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what in above-described embodiment and specification, describe is principle of the present invention; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention; these changes and improvements all fall in claimed scope of the present invention, and the protection range that the present invention requires is defined by appending claims and equivalent thereof.
Claims (5)
1. a satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna, it is characterized in that, comprise successively outdoor transducer, single channel swivel joint and indoor transducer that connect and can both-way communication, between the output of described outdoor transducer and the input of satellite antenna, be connected with up-conversion power amplifier, the input of described outdoor transducer is connected with satellite antenna by tuner, and between described indoor transducer and communication apparatus, modem is connected via satellite.
2. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 1, it is characterized in that, described indoor transducer comprises first signal blender, described first signal blender is provided with upward signal input, downstream signal output and mixed signal end, between the upward signal input of described first signal blender and the upward signal output of described satellite modem, be provided with upward signal circuit, between the downstream signal output of described first signal blender and the downstream signal input of described satellite modem, be provided with downstream signal circuit.
3. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 2, it is characterized in that, in the upward signal circuit of described first signal blender, be provided with the first frequency mixer of series connection, described the first frequency mixer is connected with first signal source, and the mixed signal end of described first signal blender is connected with one end of described single channel swivel joint.
4. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 1, it is characterized in that, described outdoor transducer comprises secondary signal blender, described secondary signal blender is provided with upward signal output, downstream signal input and mixed signal end, between the upward signal output of described secondary signal blender and the input of described up-conversion power amplifier, be provided with upward signal circuit, between the downstream signal input of described secondary signal blender and the output of described tuner, be provided with downstream signal circuit.
5. a kind of satellite intermediate frequency chromacoder that is applied to boat-carrying two-way communication antenna according to claim 4, it is characterized in that, in the upward signal circuit of described secondary signal blender, be provided with the second frequency mixer and the filter of series connection, the output of described the second frequency mixer is connected with the input of described filter, described the second frequency mixer is connected with secondary signal source, and the mixed signal end of described the second frequency mixer is connected with the other end of described single channel swivel joint.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310656816.5A CN103684520B (en) | 2013-12-06 | 2013-12-06 | A kind of satellite intermediate frequency chromacoder being applied to boat-carrying two-way communication antenna |
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| CN201310656816.5A CN103684520B (en) | 2013-12-06 | 2013-12-06 | A kind of satellite intermediate frequency chromacoder being applied to boat-carrying two-way communication antenna |
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| CN103684520B CN103684520B (en) | 2016-08-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871450A (en) * | 2016-06-14 | 2016-08-17 | 深圳市华讯星通讯有限公司 | Small station for VSAT system |
| WO2017063483A1 (en) * | 2015-10-16 | 2017-04-20 | 中兴通讯股份有限公司 | Method and apparatus for controlling uplink transmit power |
| CN107994919A (en) * | 2017-12-22 | 2018-05-04 | 航天恒星科技有限公司 | Up-converter circuit based on duplexer |
| CN117081660A (en) * | 2023-10-12 | 2023-11-17 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11234664A (en) * | 1998-02-12 | 1999-08-27 | Dx Antenna Co Ltd | Satellite signal receiver |
| CN2924970Y (en) * | 2006-04-13 | 2007-07-18 | 廖文舟 | Satellite television medium-frequency signal transmitting and receiving system |
| JP2011030253A (en) * | 2010-09-17 | 2011-02-10 | Maspro Denkoh Corp | Transmission device |
| CN203661057U (en) * | 2013-12-06 | 2014-06-18 | 浙江中星光电子科技有限公司 | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna |
-
2013
- 2013-12-06 CN CN201310656816.5A patent/CN103684520B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11234664A (en) * | 1998-02-12 | 1999-08-27 | Dx Antenna Co Ltd | Satellite signal receiver |
| CN2924970Y (en) * | 2006-04-13 | 2007-07-18 | 廖文舟 | Satellite television medium-frequency signal transmitting and receiving system |
| JP2011030253A (en) * | 2010-09-17 | 2011-02-10 | Maspro Denkoh Corp | Transmission device |
| CN203661057U (en) * | 2013-12-06 | 2014-06-18 | 浙江中星光电子科技有限公司 | Satellite intermediate frequency signal conversion device applied to shipborne two-way communication antenna |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017063483A1 (en) * | 2015-10-16 | 2017-04-20 | 中兴通讯股份有限公司 | Method and apparatus for controlling uplink transmit power |
| CN105871450A (en) * | 2016-06-14 | 2016-08-17 | 深圳市华讯星通讯有限公司 | Small station for VSAT system |
| WO2017215484A1 (en) * | 2016-06-14 | 2017-12-21 | 深圳市华讯星通讯有限公司 | Vsat system small station |
| CN107994919A (en) * | 2017-12-22 | 2018-05-04 | 航天恒星科技有限公司 | Up-converter circuit based on duplexer |
| CN117081660A (en) * | 2023-10-12 | 2023-11-17 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
| CN117081660B (en) * | 2023-10-12 | 2024-01-16 | 齐鲁卫星技术(山东)有限责任公司 | Wide-beam hidden transmitting platform for synchronous orbit satellite platform |
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Address after: 315500 No.499, East Yuelin Road, Yuelin street, Fenghua District, Ningbo City, Zhejiang Province Patentee after: ZHEJIANG CHINASTAR ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 317500, Chaoyang Road, 3 industrial district, Wenling, Zhejiang, Taizhou Patentee before: ZHEJIANG CHINASTAR ELECTRONIC SCIENCE & TECHNOLOGY Co.,Ltd. |
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