CA1042523A - Phase filter for reducing the effects of the noise components altering discrete phase modulated signals - Google Patents
Phase filter for reducing the effects of the noise components altering discrete phase modulated signalsInfo
- Publication number
- CA1042523A CA1042523A CA232,785A CA232785A CA1042523A CA 1042523 A CA1042523 A CA 1042523A CA 232785 A CA232785 A CA 232785A CA 1042523 A CA1042523 A CA 1042523A
- Authority
- CA
- Canada
- Prior art keywords
- signal
- input
- output
- filter
- phase
- 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
- 230000000694 effects Effects 0.000 title claims abstract description 26
- 230000010363 phase shift Effects 0.000 claims abstract description 11
- 239000000306 component Substances 0.000 claims abstract 23
- 238000012546 transfer Methods 0.000 claims description 34
- 230000003044 adaptive effect Effects 0.000 claims description 22
- 230000005540 biological transmission Effects 0.000 claims description 22
- 238000005070 sampling Methods 0.000 claims description 20
- 238000001514 detection method Methods 0.000 claims description 19
- 230000004044 response Effects 0.000 claims description 9
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000000875 corresponding effect Effects 0.000 claims 3
- 238000000034 method Methods 0.000 description 14
- 238000001228 spectrum Methods 0.000 description 11
- 101100445834 Drosophila melanogaster E(z) gene Proteins 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 1
- 241000928106 Alain Species 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001143 conditioned effect Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
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
- H04L27/233—Demodulator circuits; Receiver circuits using non-coherent demodulation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H21/00—Adaptive networks
- H03H21/0012—Digital adaptive filters
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Filters That Use Time-Delay Elements (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7430001A FR2283606A1 (fr) | 1974-08-30 | 1974-08-30 | Filtre de phase pour reduire les effets des composantes de bruit affectant les signaux modules en phase par les valeurs discretes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1042523A true CA1042523A (en) | 1978-11-14 |
Family
ID=9142781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA232,785A Expired CA1042523A (en) | 1974-08-30 | 1975-07-31 | Phase filter for reducing the effects of the noise components altering discrete phase modulated signals |
Country Status (13)
| Country | Link |
|---|---|
| US (1) | US3972000A (enEXAMPLES) |
| JP (1) | JPS51149743A (enEXAMPLES) |
| BR (1) | BR7505573A (enEXAMPLES) |
| CA (1) | CA1042523A (enEXAMPLES) |
| CH (1) | CH580895A5 (enEXAMPLES) |
| DE (1) | DE2536673B2 (enEXAMPLES) |
| ES (1) | ES440563A1 (enEXAMPLES) |
| FR (1) | FR2283606A1 (enEXAMPLES) |
| GB (1) | GB1500587A (enEXAMPLES) |
| IT (1) | IT1041824B (enEXAMPLES) |
| NL (1) | NL7510209A (enEXAMPLES) |
| SE (1) | SE408001B (enEXAMPLES) |
| ZA (1) | ZA754888B (enEXAMPLES) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH604425A5 (enEXAMPLES) * | 1975-12-31 | 1978-09-15 | Ibm | |
| DE2727874C3 (de) * | 1976-06-25 | 1979-07-12 | Cselt-Centro Studi E Laboratori Telecomunicazioni S.P.A., Turin (Italien) | Verfahren und Entzerrer für die nichtlineare Entzerrung von digitalen Signalen |
| FR2407616A1 (fr) * | 1977-10-27 | 1979-05-25 | Ibm France | Procede et dispositif de mesure de la pente de la caracteristique de temps de groupe d'un canal de transmission et leur application a la selection automatique d'egaliseur |
| FR2407621A1 (fr) * | 1977-10-27 | 1979-05-25 | Ibm France | Procede et dispositif pour determiner l'ecart de phase dans un systeme utilisant la modulation par saut de phase |
| FR2468258B1 (fr) | 1979-10-19 | 1987-06-26 | Cit Alcatel | Circuit de correction des bruits de phase pour un systeme de transmission |
| GB2134355B (en) * | 1983-01-12 | 1986-03-05 | Ncr Co | Circuit for reducing errors in a data receiver |
| US4672605A (en) * | 1984-03-20 | 1987-06-09 | Applied Spectrum Technologies, Inc. | Data and voice communications system |
| US4893316A (en) * | 1985-04-04 | 1990-01-09 | Motorola, Inc. | Digital radio frequency receiver |
| US5421342A (en) * | 1991-01-18 | 1995-06-06 | Mortara Instrument, Inc. | Filter apparatus and method for reducing signal noise using multiple signals obtained from a single source |
| US5495497A (en) * | 1991-09-25 | 1996-02-27 | The United States Of America As Represented By The Secretary Of The Navy | Method and apparatus for suppressing interference from bandspread communication signals |
| JPH0645515U (ja) * | 1992-12-01 | 1994-06-21 | 五郎 浦壁 | 弱視者用ライト付き杖 |
| US6238738B1 (en) | 1996-08-13 | 2001-05-29 | Libbey-Owens-Ford Co. | Method for depositing titanium oxide coatings on flat glass |
| DE19731112B4 (de) * | 1997-07-19 | 2009-10-01 | Robert Bosch Gmbh | Verfahren und Schaltungsanordnung zur Erkennung von kurzen Impulsen eines digitalen Eingangssignals |
| JP3190318B2 (ja) * | 1999-07-07 | 2001-07-23 | 三菱電機株式会社 | 周波数誤差推定装置および周波数誤差推定方法 |
| KR100791239B1 (ko) | 2000-04-24 | 2008-01-03 | 록히드 마틴 코포레이션 | 수동 코히런트 위치지정 시스템 및 방법 |
| JP3748255B2 (ja) * | 2000-10-20 | 2006-02-22 | ロッキード・マーティン・コーポレイション | 民間航空受動コヒーレントロケーションシステムおよび方法 |
| AU2002340705B2 (en) | 2001-05-04 | 2007-10-25 | Lockheed Martin Corporation | System and method for wideband pre-detection signal processing for passive coherent location applications |
| KR100824553B1 (ko) | 2001-05-04 | 2008-04-24 | 록히드 마틴 코포레이션 | 수동 코히어런트 위치 어플리케이션에서 측정 영역 데이터를 연관시키기 위한 시스템 및 방법 |
| US6703968B2 (en) | 2001-05-04 | 2004-03-09 | Lockheed Martin Corporation | System and method for mitigating co-channel interference in passive coherent location applications |
| US6738021B2 (en) | 2001-05-04 | 2004-05-18 | Lockheed Martin Corporation | System and method for detection and feature extraction in passive coherent location applications |
| US6710743B2 (en) * | 2001-05-04 | 2004-03-23 | Lockheed Martin Corporation | System and method for central association and tracking in passive coherent location applications |
| US8861627B2 (en) * | 2009-07-15 | 2014-10-14 | Fujitsu Limited | Direct mm-wave m-ary quadrature amplitude modulation (QAM) modulator operating in saturated power mode |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2122376B1 (enEXAMPLES) * | 1971-01-21 | 1975-01-17 | Ibm France | |
| DE2163247C3 (de) * | 1971-12-20 | 1978-03-16 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Vorrichtung zur Beseitigung der in einem Eingangssignal enthaltenen Störsignale |
| FR2178764B1 (enEXAMPLES) * | 1972-04-04 | 1974-08-02 | Ibm France |
-
1974
- 1974-08-30 FR FR7430001A patent/FR2283606A1/fr active Granted
-
1975
- 1975-07-15 US US05/596,557 patent/US3972000A/en not_active Expired - Lifetime
- 1975-07-29 ZA ZA754888A patent/ZA754888B/xx unknown
- 1975-07-29 GB GB31635/75A patent/GB1500587A/en not_active Expired
- 1975-07-31 CA CA232,785A patent/CA1042523A/en not_active Expired
- 1975-08-07 CH CH1030075A patent/CH580895A5/xx not_active IP Right Cessation
- 1975-08-12 IT IT26310/75A patent/IT1041824B/it active
- 1975-08-18 DE DE19752536673 patent/DE2536673B2/de active Granted
- 1975-08-27 JP JP50103116A patent/JPS51149743A/ja active Granted
- 1975-08-28 SE SE7509555A patent/SE408001B/xx not_active IP Right Cessation
- 1975-08-28 NL NL7510209A patent/NL7510209A/xx not_active Application Discontinuation
- 1975-08-29 BR BR7505573*A patent/BR7505573A/pt unknown
- 1975-08-29 ES ES440563A patent/ES440563A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IT1041824B (it) | 1980-01-10 |
| JPS566729B2 (enEXAMPLES) | 1981-02-13 |
| DE2536673B2 (de) | 1976-11-11 |
| JPS51149743A (en) | 1976-12-22 |
| GB1500587A (en) | 1978-02-08 |
| DE2536673A1 (de) | 1976-05-13 |
| NL7510209A (nl) | 1976-03-02 |
| ES440563A1 (es) | 1977-06-16 |
| CH580895A5 (enEXAMPLES) | 1976-10-15 |
| SE7509555L (sv) | 1976-03-01 |
| SE408001B (sv) | 1979-04-30 |
| FR2283606A1 (fr) | 1976-03-26 |
| ZA754888B (en) | 1977-03-30 |
| US3972000A (en) | 1976-07-27 |
| BR7505573A (pt) | 1976-08-03 |
| FR2283606B1 (enEXAMPLES) | 1978-12-29 |
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