GB2204201A - Method and device for receiving frequency-modulated analog signals with digital processing - Google Patents
Method and device for receiving frequency-modulated analog signals with digital processingInfo
- Publication number
- GB2204201A GB2204201A GB08813996A GB8813996A GB2204201A GB 2204201 A GB2204201 A GB 2204201A GB 08813996 A GB08813996 A GB 08813996A GB 8813996 A GB8813996 A GB 8813996A GB 2204201 A GB2204201 A GB 2204201A
- Authority
- GB
- United Kingdom
- Prior art keywords
- modulated analog
- analog signals
- digital processing
- receiving frequency
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D3/00—Demodulation of angle-, frequency- or phase- modulated oscillations
- H03D3/006—Demodulation of angle-, frequency- or phase- modulated oscillations by sampling the oscillations and further processing the samples, e.g. by computing techniques
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Power Engineering (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Stereo-Broadcasting Methods (AREA)
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
The method consists in directly converting a frequency-modulated analog signal by purely digital methods into a numerical code ( DELTA N) proportional to the deviation ( DELTA f) of the signal of the intermediate frequency (f). The device for implementing the method comprises a converter (1), a comparator (3), a frequency divider (5), a pulse duration measuring unit (6), a processor (7), a signal dividing unit (8) and a generator (9) of synchronizing pulses.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/SU1986/000108 WO1988003338A1 (en) | 1986-10-24 | 1986-10-24 | Method and device for receiving frequency-modulated analog signals with digital processing |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2204201A true GB2204201A (en) | 1988-11-02 |
Family
ID=21617050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08813996A Withdrawn GB2204201A (en) | 1986-10-24 | 1986-10-24 | Method and device for receiving frequency-modulated analog signals with digital processing |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPH01501111A (en) |
DE (1) | DE3690796T1 (en) |
DK (1) | DK343788A (en) |
FI (1) | FI883058A0 (en) |
GB (1) | GB2204201A (en) |
HU (1) | HUT46828A (en) |
NL (1) | NL8620518A (en) |
WO (1) | WO1988003338A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599575A1 (en) * | 1986-05-29 | 1987-12-04 | Inst Radioveschatel Prie | Method of receiving frequency-modulated analog signals with digital processing and device for carrying out this method |
EP0434293A2 (en) * | 1989-12-22 | 1991-06-26 | Nokia Mobile Phones Ltd. | Method and device for the detection of an FM or PM modulated signal |
US5270666A (en) * | 1989-12-22 | 1993-12-14 | Nokia Mobile Phones, Ltd. | Method and circuitry for demodulation of angle modulated signals by measuring cycle time |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2333571A1 (en) * | 1973-07-02 | 1975-01-23 | Siemens Ag | DEMODULATOR FOR FREQUENCY MODULATED SIGNALS |
SU1193765A1 (en) * | 1983-04-25 | 1985-11-23 | Предприятие П/Я А-7672 | Digital frequency discriminator |
-
1986
- 1986-10-24 GB GB08813996A patent/GB2204201A/en not_active Withdrawn
- 1986-10-24 HU HU861857Q patent/HUT46828A/en unknown
- 1986-10-24 JP JP87501973A patent/JPH01501111A/en active Pending
- 1986-10-24 NL NL8620518A patent/NL8620518A/en not_active Application Discontinuation
- 1986-10-24 WO PCT/SU1986/000108 patent/WO1988003338A1/en active Application Filing
- 1986-10-24 DE DE19863690796 patent/DE3690796T1/de not_active Withdrawn
-
1988
- 1988-06-23 FI FI883058A patent/FI883058A0/en not_active Application Discontinuation
- 1988-06-23 DK DK343788A patent/DK343788A/en not_active Application Discontinuation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2333571A1 (en) * | 1973-07-02 | 1975-01-23 | Siemens Ag | DEMODULATOR FOR FREQUENCY MODULATED SIGNALS |
SU1193765A1 (en) * | 1983-04-25 | 1985-11-23 | Предприятие П/Я А-7672 | Digital frequency discriminator |
Non-Patent Citations (1)
Title |
---|
V.B. VAGAPOV ET AL. }OSNOVY AUTOMATIKI RADIOELEKTRONNOGO OBORUDOVANIA}, 1983, KIEVSKOE VYSSHEE VOENNOE AVIATSIONNOE INZHENERNOE UCHILISCHE (KIEV), SEE PAGES 63-65 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2599575A1 (en) * | 1986-05-29 | 1987-12-04 | Inst Radioveschatel Prie | Method of receiving frequency-modulated analog signals with digital processing and device for carrying out this method |
EP0434293A2 (en) * | 1989-12-22 | 1991-06-26 | Nokia Mobile Phones Ltd. | Method and device for the detection of an FM or PM modulated signal |
EP0434293A3 (en) * | 1989-12-22 | 1991-09-04 | Nokia Mobile Phones Ltd. | Method and device for the detection of an fm or pm modulated signal |
US5270666A (en) * | 1989-12-22 | 1993-12-14 | Nokia Mobile Phones, Ltd. | Method and circuitry for demodulation of angle modulated signals by measuring cycle time |
Also Published As
Publication number | Publication date |
---|---|
DE3690796T1 (en) | 1988-10-06 |
WO1988003338A1 (en) | 1988-05-05 |
FI883058A (en) | 1988-06-23 |
DK343788D0 (en) | 1988-06-23 |
NL8620518A (en) | 1988-09-01 |
HUT46828A (en) | 1988-11-28 |
FI883058A0 (en) | 1988-06-23 |
DK343788A (en) | 1988-06-23 |
JPH01501111A (en) | 1989-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |