DE3467672D1 - Microwave reception chain having a direct microwave demodulation device - Google Patents
Microwave reception chain having a direct microwave demodulation deviceInfo
- Publication number
- DE3467672D1 DE3467672D1 DE8484400595T DE3467672T DE3467672D1 DE 3467672 D1 DE3467672 D1 DE 3467672D1 DE 8484400595 T DE8484400595 T DE 8484400595T DE 3467672 T DE3467672 T DE 3467672T DE 3467672 D1 DE3467672 D1 DE 3467672D1
- Authority
- DE
- Germany
- Prior art keywords
- microwave
- demodulation device
- reception chain
- direct
- direct microwave
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8304983A FR2543379B1 (fr) | 1983-03-25 | 1983-03-25 | Dispositif de demodulation directe en hyperfrequence et chaine de reception hyperfrequence comportant un tel dispositif |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3467672D1 true DE3467672D1 (en) | 1987-12-23 |
Family
ID=9287261
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8484400595T Expired DE3467672D1 (en) | 1983-03-25 | 1984-03-23 | Microwave reception chain having a direct microwave demodulation device |
Country Status (6)
Country | Link |
---|---|
US (1) | US4559499A (de) |
EP (1) | EP0120786B1 (de) |
JP (1) | JPH0666820B2 (de) |
CA (1) | CA1213646A (de) |
DE (1) | DE3467672D1 (de) |
FR (1) | FR2543379B1 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4733403A (en) * | 1986-05-12 | 1988-03-22 | Motorola, Inc. | Digital zero IF selectivity section |
US4712221A (en) * | 1986-08-29 | 1987-12-08 | International Business Machines Corporation | Carrier recovery of modulated signals |
US5115454A (en) * | 1987-05-12 | 1992-05-19 | Kucar Andy D | Method and apparatus for carrier synchronization and data detection |
FR2620885B1 (fr) * | 1987-09-18 | 1990-11-16 | Alcatel Thomson Faisceaux | Procede de detection de faux accrochages du signal reference sur le signal a demoduler en demodulation numerique coherente et dispositif mettant en oeuvre un tel procede |
US4814719A (en) * | 1987-12-14 | 1989-03-21 | Ford Aerospace & Communications Corporation | Unsymmetrical QPSK demodulator |
JPH0716206B2 (ja) * | 1988-08-05 | 1995-02-22 | 日本電気株式会社 | 信号検出器 |
US4910467A (en) * | 1988-11-02 | 1990-03-20 | Motorola, Inc. | Method and apparatus for decoding a quadrature modulated signal |
FR2641920A1 (fr) * | 1989-01-18 | 1990-07-20 | Alcatel Transmission | Dispositif de recuperation de porteuse insensible aux faux accrochages |
DE4102859A1 (de) * | 1991-01-31 | 1992-08-20 | Thomson Brandt Gmbh | Rundfunkempfaenger mit nicam-decoder |
DE9400950U1 (de) * | 1994-01-20 | 1995-08-24 | Selectronic Vertriebs Gmbh | Vorrichtung zur Erfassung lebender Körper sowie deren Verwendung |
GB2286950B (en) * | 1994-02-22 | 1998-06-17 | Roke Manor Research | A direct conversion receiver |
DE4433779C2 (de) * | 1994-09-22 | 1996-07-25 | Grundig Emv | Phasendetektor für die Steuerung der Rückgewinnung eines Trägersignals |
US5640425A (en) * | 1995-12-26 | 1997-06-17 | Golden Bridge Technology, Inc. | Fast-acting costas loop |
US5742637A (en) * | 1996-08-20 | 1998-04-21 | Golden Bridge Technology, Inc. | Fast phase estimation in digital communication systems |
US6493396B1 (en) * | 1999-01-11 | 2002-12-10 | Tellabs Operations, Inc | Phase shift key burst receiver having improved phase resolution and timing and data recovery |
KR20010057146A (ko) * | 1999-12-18 | 2001-07-04 | 윤종용 | 자동이득제어기능을 구비한 직접 변환 복조장치 |
US7006562B2 (en) * | 2000-03-17 | 2006-02-28 | Chien Chou | Phase demodulator, phase difference detector, and interferometric system using the phase difference detector |
JP7117054B1 (ja) * | 2022-04-07 | 2022-08-12 | 株式会社創英 | 吹き戻しに使用される伸縮体および該伸縮体を含む吹き戻し |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA958773A (en) * | 1969-08-01 | 1974-12-03 | William J. Bickford | Frequency deviation modifier of f.m. and p.m. signals |
DE2623749C2 (de) * | 1976-05-26 | 1985-12-19 | Siemens AG, 1000 Berlin und 8000 München | Schaltungsanordnung zum Korrigieren von demodulierten Signalen |
US4084137A (en) | 1976-08-24 | 1978-04-11 | Communications Satellite Corporation | Multidimensional code communication systems |
HU175236B (hu) * | 1977-01-10 | 1980-06-28 | Hiradastech Ipari Kutato | Sposob i ustrojstvo dlja prijoma i generacii chastotno-modulirovannykh signalov |
US4285060A (en) * | 1978-02-28 | 1981-08-18 | Harris Corporation | Spread spectrum code tracking loop |
JPS55132132A (en) * | 1979-03-30 | 1980-10-14 | Nec Corp | Phase synchronizing circuit |
FR2476947B1 (fr) * | 1980-02-22 | 1987-06-26 | Thomson Csf | Dispositif de modulation numerique lineaire et emetteur hertzien comportant un tel dispositif |
JPS57118413A (en) * | 1981-01-14 | 1982-07-23 | Nec Corp | Automatic gain controlling system |
JPS58137309A (ja) * | 1982-02-10 | 1983-08-15 | Nec Corp | Fm復調器 |
BE892690A (nl) * | 1982-03-30 | 1982-09-30 | Bell Telephone Mfg | Demodulatorketen |
-
1983
- 1983-03-25 FR FR8304983A patent/FR2543379B1/fr not_active Expired - Lifetime
-
1984
- 1984-03-20 US US06/591,448 patent/US4559499A/en not_active Expired - Lifetime
- 1984-03-22 CA CA000450199A patent/CA1213646A/en not_active Expired
- 1984-03-23 DE DE8484400595T patent/DE3467672D1/de not_active Expired
- 1984-03-23 EP EP84400595A patent/EP0120786B1/de not_active Expired
- 1984-03-23 JP JP59055963A patent/JPH0666820B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0120786A1 (de) | 1984-10-03 |
FR2543379A1 (fr) | 1984-09-28 |
JPH0666820B2 (ja) | 1994-08-24 |
CA1213646A (en) | 1986-11-04 |
EP0120786B1 (de) | 1987-11-19 |
US4559499A (en) | 1985-12-17 |
FR2543379B1 (fr) | 1990-03-02 |
JPS59181864A (ja) | 1984-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |