DE69307009T2 - Anordnung zur Quadraturfehlerkorrektion eines Synchrondemodulators - Google Patents
Anordnung zur Quadraturfehlerkorrektion eines SynchrondemodulatorsInfo
- Publication number
- DE69307009T2 DE69307009T2 DE69307009T DE69307009T DE69307009T2 DE 69307009 T2 DE69307009 T2 DE 69307009T2 DE 69307009 T DE69307009 T DE 69307009T DE 69307009 T DE69307009 T DE 69307009T DE 69307009 T2 DE69307009 T2 DE 69307009T2
- Authority
- DE
- Germany
- Prior art keywords
- arrangement
- error correction
- synchronous demodulator
- quadrature error
- quadrature
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D1/00—Demodulation of amplitude-modulated oscillations
- H03D1/22—Homodyne or synchrodyne circuits
- H03D1/2245—Homodyne or synchrodyne circuits using two quadrature channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0016—Stabilisation of local oscillators
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/877,427 US5315620A (en) | 1992-05-01 | 1992-05-01 | Arrangement for correction of synchronous demodulator quadrature phase errors |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69307009D1 DE69307009D1 (de) | 1997-02-13 |
DE69307009T2 true DE69307009T2 (de) | 1997-07-17 |
Family
ID=25369939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69307009T Expired - Fee Related DE69307009T2 (de) | 1992-05-01 | 1993-04-28 | Anordnung zur Quadraturfehlerkorrektion eines Synchrondemodulators |
Country Status (3)
Country | Link |
---|---|
US (1) | US5315620A (de) |
EP (1) | EP0568056B1 (de) |
DE (1) | DE69307009T2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19926101A1 (de) * | 1999-06-08 | 2001-02-01 | Rohde & Schwarz | Anordnung zur Fehlerkompensation bei der Umsetzung von Hochfrequenzsignalen ins Basisband |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5504784A (en) * | 1993-10-06 | 1996-04-02 | Niyogi; Sourabh | Viterbi algorithm decoding method and apparatus |
US5826180A (en) * | 1994-08-08 | 1998-10-20 | Nice Systems Ltd. | Near homodyne radio frequency receiver |
US5692014A (en) * | 1995-02-03 | 1997-11-25 | Trw Inc. | Subsampled carrier recovery for high data rate demodulators |
CN100508508C (zh) | 1999-01-19 | 2009-07-01 | 交互数字技术公司 | 相移键控接收机中振幅和相位不平衡的校正方法及相应信号平衡器 |
US6377620B1 (en) * | 1999-01-19 | 2002-04-23 | Interdigital Technology Corporation | Balancing amplitude and phase |
US6661852B1 (en) | 1999-07-21 | 2003-12-09 | Raytheon Company | Apparatus and method for quadrature tuner error correction |
US6640237B1 (en) | 1999-07-27 | 2003-10-28 | Raytheon Company | Method and system for generating a trigonometric function |
US6298093B1 (en) | 1999-08-05 | 2001-10-02 | Raytheon Company | Apparatus and method for phase and frequency digital modulation |
US7088765B1 (en) * | 2000-03-15 | 2006-08-08 | Ndsu Research Foundation | Vector calibration system |
US6590948B1 (en) | 2000-03-17 | 2003-07-08 | Raytheon Company | Parallel asynchronous sample rate reducer |
US6647075B1 (en) | 2000-03-17 | 2003-11-11 | Raytheon Company | Digital tuner with optimized clock frequency and integrated parallel CIC filter and local oscillator |
US6469661B1 (en) | 2001-01-19 | 2002-10-22 | Sandia Corporation | Correction of I/Q channel errors without calibration |
KR101034546B1 (ko) * | 2010-05-07 | 2011-05-12 | 엘아이지넥스원 주식회사 | 신호 처리 장치 및 그 방법 |
US8922144B2 (en) | 2012-06-25 | 2014-12-30 | Chrysler Group Llc | Method of processing sensor signals for determining motion of a motor shaft |
US9952313B2 (en) * | 2014-09-19 | 2018-04-24 | The Boeing Company | Phase calibration of a stepped-chirp signal for a synthetic aperture radar |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3993956A (en) * | 1975-11-03 | 1976-11-23 | Motorola, Inc. | Digital detection system for differential phase shift keyed signals |
US4689804A (en) * | 1985-08-14 | 1987-08-25 | Racal Data Communications Inc. | Method and apparatus for reduction of sinusoidal phase jitter in a high speed data modem |
ES2022829B3 (es) * | 1986-05-06 | 1991-12-16 | Siemens Ag | Compensador de interferencia de despolarizacion adaptable |
SE460086B (sv) * | 1987-11-27 | 1989-09-04 | Ericsson Telefon Ab L M | Anordning foer korrigering av frekvensen i en koherent mottagare |
JPH03173228A (ja) * | 1989-12-01 | 1991-07-26 | Canon Inc | モデム装置 |
US4994810A (en) * | 1990-03-26 | 1991-02-19 | Allied-Signal Inc. | Monopulse processor digital correction circuit |
US5105195A (en) * | 1990-12-10 | 1992-04-14 | Hughes Aircraft Company | System and method for compensation of in-phase and quadrature phase and gain imbalance |
-
1992
- 1992-05-01 US US07/877,427 patent/US5315620A/en not_active Expired - Lifetime
-
1993
- 1993-04-28 EP EP93106931A patent/EP0568056B1/de not_active Expired - Lifetime
- 1993-04-28 DE DE69307009T patent/DE69307009T2/de not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19926101A1 (de) * | 1999-06-08 | 2001-02-01 | Rohde & Schwarz | Anordnung zur Fehlerkompensation bei der Umsetzung von Hochfrequenzsignalen ins Basisband |
DE19926101B4 (de) * | 1999-06-08 | 2004-04-08 | Rohde & Schwarz Gmbh & Co. Kg | Anordnung zur Fehlerkompensation bei der Umsetzung von Hochfrequenzsignalen ins Basisband |
Also Published As
Publication number | Publication date |
---|---|
EP0568056A1 (de) | 1993-11-03 |
DE69307009D1 (de) | 1997-02-13 |
EP0568056B1 (de) | 1997-01-02 |
US5315620A (en) | 1994-05-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69307009D1 (de) | Anordnung zur Quadraturfehlerkorrektion eines Synchrondemodulators | |
DE69029484T2 (de) | Verfahren und Anordnung zur Fehlerkorrektur | |
DE69127986T2 (de) | Anordnung zum geometrischen Korrigieren eines verzerrten Bildes | |
DE69116724D1 (de) | Fehlerkorrektursystem eines Ringnetzes | |
DE59308006D1 (de) | Anordnung zur Positionsbestimmung eines Landfahrzeugs | |
DE59510243D1 (de) | Anordnung zur berührungslosen drehwinkelerfassung eines drehbaren elements | |
DE68908722D1 (de) | Dampf-Phasen-Verfahren zur Herstellung eines Diamanten. | |
DE59809276D1 (de) | Verfahren zur korrektur der messfehler einer koordinaten-messmaschine | |
DE69215298D1 (de) | PSK-Demodulator mit Korrektur im Basisband für Phasen- oder Frequenzfehler | |
DE69615118D1 (de) | Schenkel zur Befestigung eines Komponentes | |
DE69107586D1 (de) | Einrichtung zur Driftfehlerkorrektur eines Gierwinkelgeschwindigkeitssensors. | |
DE69107826T2 (de) | Nullpunktkorrektureinrichtung eines Kreisels. | |
DE3877874T2 (de) | Anordnung zur stabilisierung eines leistungssystems. | |
DE68925896D1 (de) | Verfahren zur betriebsartanpassung eines modems | |
DE69232647D1 (de) | Demodulator zur Demodulierung eines pi/4-umgetasteten DQPSK-Signals | |
DE59509442D1 (de) | Verfahren zur Kalibrierung eines Koordinatenmessgerätes mit zwei rotatorischen Achsen | |
CA2414257A1 (en) | Multichannel interferometer with phase generated carrier demodulation and quadrature error correction | |
DE68924124D1 (de) | Anordnung zur Dekodierung eines BCH-Kodes. | |
GB2244410B (en) | Quadrature demodulator | |
DE69205119D1 (de) | Verfahren zur Verbesserung der Belastbarkeit eines rotierenden Körpers. | |
DE69028034D1 (de) | Quadratur-Phasendemodulator für einen breiten dynamischen Bereich | |
DE50002833D1 (de) | Anordnung zur messung der kantenposition eines transparenten objektes | |
GB9023759D0 (en) | Correction of quadrature phase error | |
DE3768204D1 (de) | Anordnung zum haltern eines glaskoerpers. | |
DE59102322D1 (de) | Anordnung zur Erfassung der Drehzahl eines rotierenden Bauteils. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |