NO301919B1 - Fremgangsmåte for styring av frekvensen i en koherent radiomottager samt apparat for utförelse av fremgangsmåten - Google Patents
Fremgangsmåte for styring av frekvensen i en koherent radiomottager samt apparat for utförelse av fremgangsmåten Download PDFInfo
- Publication number
- NO301919B1 NO301919B1 NO903992A NO903992A NO301919B1 NO 301919 B1 NO301919 B1 NO 301919B1 NO 903992 A NO903992 A NO 903992A NO 903992 A NO903992 A NO 903992A NO 301919 B1 NO301919 B1 NO 301919B1
- Authority
- NO
- Norway
- Prior art keywords
- signal
- sequence
- analysis
- viterbi
- point
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000001427 coherent effect Effects 0.000 title claims description 9
- 108010076504 Protein Sorting Signals Proteins 0.000 claims abstract description 38
- 238000004458 analytical method Methods 0.000 claims abstract description 24
- 238000004364 calculation method Methods 0.000 claims description 26
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 8
- 230000006978 adaptation Effects 0.000 claims description 7
- 230000010354 integration Effects 0.000 claims description 6
- 230000003044 adaptive effect Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 230000001934 delay Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000008054 signal transmission Effects 0.000 description 4
- 238000012937 correction Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000001020 rhythmical effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Error Detection And Correction (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Circuits Of Receivers In General (AREA)
- Radio Relay Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Steroid Compounds (AREA)
- Noise Elimination (AREA)
- Synchronisation In Digital Transmission Systems (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8900282A SE462943B (sv) | 1989-01-26 | 1989-01-26 | Saett och anordning foer frekvensstyrning av en koherent radiomottagare |
| PCT/SE1990/000007 WO1990009070A1 (en) | 1989-01-26 | 1990-01-04 | A method of controlling the frequency of a coherent radio receiver and apparatus for carrying out the method |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO903992L NO903992L (no) | 1990-09-13 |
| NO903992D0 NO903992D0 (no) | 1990-09-13 |
| NO301919B1 true NO301919B1 (no) | 1997-12-22 |
Family
ID=20374869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO903992A NO301919B1 (no) | 1989-01-26 | 1990-09-13 | Fremgangsmåte for styring av frekvensen i en koherent radiomottager samt apparat for utförelse av fremgangsmåten |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US5093848A (es) |
| EP (1) | EP0381637B1 (es) |
| JP (1) | JP2634319B2 (es) |
| KR (1) | KR960000608B1 (es) |
| CN (1) | CN1020532C (es) |
| AT (1) | ATE103445T1 (es) |
| AU (1) | AU619944B2 (es) |
| CA (1) | CA2007973C (es) |
| DE (1) | DE69007506T2 (es) |
| DK (1) | DK0381637T3 (es) |
| ES (1) | ES2050419T3 (es) |
| FI (1) | FI904710A0 (es) |
| HK (1) | HK78494A (es) |
| IE (1) | IE64267B1 (es) |
| MY (1) | MY104867A (es) |
| NO (1) | NO301919B1 (es) |
| NZ (1) | NZ232081A (es) |
| PT (1) | PT92981B (es) |
| SE (1) | SE462943B (es) |
| SG (1) | SG84094G (es) |
| WO (1) | WO1990009070A1 (es) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE462942B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare |
| SE465245B (sv) * | 1989-12-22 | 1991-08-12 | Ericsson Telefon Ab L M | Foerfarande att utfoera kanalestimering foer en faedande kanal vid oeverfoering av symbolsekvenser |
| US5263026A (en) * | 1991-06-27 | 1993-11-16 | Hughes Aircraft Company | Maximum likelihood sequence estimation based equalization within a mobile digital cellular receiver |
| FI96257C (fi) * | 1994-04-13 | 1996-05-27 | Nokia Telecommunications Oy | Menetelmä radiotaajuisen signaalin vaihevirheen määrittämiseksi, sekä vastaanotin |
| US5515345A (en) * | 1994-08-23 | 1996-05-07 | Jeane K. Barreira | Control unit for automobile audio system |
| AU692600B2 (en) * | 1994-09-12 | 1998-06-11 | Scientific-Atlanta, Inc. | Cable television apparatus employing two-way communication |
| US5568518A (en) * | 1994-09-14 | 1996-10-22 | Ericsson Ge Mobile Communications Inc. | Fast automatic gain control |
| US5586128A (en) * | 1994-11-17 | 1996-12-17 | Ericsson Ge Mobile Communications Inc. | System for decoding digital data using a variable decision depth |
| US6118807A (en) * | 1994-12-23 | 2000-09-12 | Intermec Ip Corp. | Methodology for received signal enhancement utilizing delay diversity processing |
| US5757855A (en) * | 1995-11-29 | 1998-05-26 | David Sarnoff Research Center, Inc. | Data detection for partial response channels |
| US6185259B1 (en) | 1996-06-12 | 2001-02-06 | Ericsson Inc. | Transmitter/receiver for GMSK and offset-QAM |
| FI102578B1 (fi) * | 1996-11-27 | 1998-12-31 | Nokia Telecommunications Oy | Menetelmä taajuuseron mittaamiseksi ja vastaanotin |
| US6205183B1 (en) | 1998-05-29 | 2001-03-20 | Ericsson Inc. | Methods of suppressing reference oscillator harmonic interference and related receivers |
| US6519300B1 (en) * | 1998-11-12 | 2003-02-11 | Ericsson Inc. | System and method for automatic frequency correction in a pilot symbol assisted demodulator |
| US6278867B1 (en) | 1998-11-25 | 2001-08-21 | Ericsson Inc. | Methods and systems for frequency generation for wireless devices |
| US6567475B1 (en) | 1998-12-29 | 2003-05-20 | Ericsson Inc. | Method and system for the transmission, reception and processing of 4-level and 8-level signaling symbols |
| US6680969B1 (en) | 1999-03-22 | 2004-01-20 | Ericsson, Inc. | Methods for estimating doppler spreads including autocorrelation function hypotheses and related systems and receivers |
| US6625236B1 (en) | 2000-02-08 | 2003-09-23 | Ericsson Inc. | Methods and systems for decoding symbols by combining matched-filtered samples with hard symbol decisions |
| US6954489B2 (en) * | 2001-01-02 | 2005-10-11 | Telefonaktiebolaget L M Ericsson (Publ) | Determining correlations of received sequences to multiple known sequences in a communications system |
| JP3633497B2 (ja) * | 2001-03-22 | 2005-03-30 | 三菱電機株式会社 | 周波数誤差推定を行う受信機および周波数誤差の推定方法 |
| CN102316287B (zh) * | 2010-07-09 | 2014-05-07 | 北京创毅视讯科技有限公司 | 一种解调模拟电视信号的方法和装置 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4027250A (en) * | 1975-10-21 | 1977-05-31 | Lang Gordon R | Apparatus and method for reducing effects of amplitude and phase jitter |
| FR2375773A1 (fr) * | 1976-12-23 | 1978-07-21 | Ibm France | Procede et dispositif de detection de phase adaptatifs |
| US4151491A (en) * | 1977-09-28 | 1979-04-24 | Harris Corporation | Technique for supplying reference for an adaptive equalizer when multiple phase signals are transmitted |
| FR2428946A1 (fr) * | 1978-06-13 | 1980-01-11 | Ibm France | Procede et dispositif pour initialiser un egaliseur adaptatif a partir d'un signal de donnees inconnu dans un systeme de transmission utilisant la modulation d'amplitude en quadrature |
| US4234957A (en) * | 1978-12-04 | 1980-11-18 | Gte Automatic Electric Laboratories Incorporated | Method and apparatus for generating timing phase error signals in PSK demodulators |
| FR2468258B1 (fr) * | 1979-10-19 | 1987-06-26 | Cit Alcatel | Circuit de correction des bruits de phase pour un systeme de transmission |
| US4466108A (en) * | 1981-10-06 | 1984-08-14 | Communications Satellite Corporation | TDMA/PSK Carrier synchronization without preamble |
| FR2525055A1 (fr) * | 1982-04-09 | 1983-10-14 | Trt Telecom Radio Electr | Procede de correction de frequence de la porteuse locale dans le recepteur d'un systeme de transmission de donnees et recepteur utilisant ce procede |
| US4578080A (en) * | 1982-09-06 | 1986-03-25 | Helal Basil H | Joint prostheses |
| FR2546008B1 (fr) * | 1983-05-11 | 1985-07-12 | Labo Electronique Physique | Circuit d'egalisation adaptative et de demodulation conjointes |
| IT1188626B (it) * | 1986-03-25 | 1988-01-20 | Gte Telecom Spa | Metodo e dispositivo di equalizzazione adattiva cieca |
| SE462942B (sv) * | 1989-01-26 | 1990-09-17 | Ericsson Telefon Ab L M | Saett och anordning foer snabb frekvensstyrning av en koherent radiomottagare |
-
1989
- 1989-01-26 SE SE8900282A patent/SE462943B/sv not_active IP Right Cessation
-
1990
- 1990-01-04 KR KR1019900702049A patent/KR960000608B1/ko not_active IP Right Cessation
- 1990-01-04 DK DK90850005.1T patent/DK0381637T3/da active
- 1990-01-04 DE DE69007506T patent/DE69007506T2/de not_active Expired - Fee Related
- 1990-01-04 EP EP90850005A patent/EP0381637B1/en not_active Expired - Lifetime
- 1990-01-04 JP JP2502734A patent/JP2634319B2/ja not_active Expired - Lifetime
- 1990-01-04 ES ES90850005T patent/ES2050419T3/es not_active Expired - Lifetime
- 1990-01-04 AT AT90850005T patent/ATE103445T1/de not_active IP Right Cessation
- 1990-01-04 WO PCT/SE1990/000007 patent/WO1990009070A1/en active Application Filing
- 1990-01-04 AU AU49644/90A patent/AU619944B2/en not_active Expired
- 1990-01-08 MY MYPI90000019A patent/MY104867A/en unknown
- 1990-01-11 NZ NZ232081A patent/NZ232081A/en unknown
- 1990-01-17 CA CA002007973A patent/CA2007973C/en not_active Expired - Lifetime
- 1990-01-17 IE IE18190A patent/IE64267B1/en not_active IP Right Cessation
- 1990-01-23 US US07/469,082 patent/US5093848A/en not_active Expired - Lifetime
- 1990-01-25 CN CN90100497A patent/CN1020532C/zh not_active Expired - Fee Related
- 1990-01-26 PT PT92981A patent/PT92981B/pt not_active IP Right Cessation
- 1990-09-13 NO NO903992A patent/NO301919B1/no not_active IP Right Cessation
- 1990-09-25 FI FI904710A patent/FI904710A0/fi not_active IP Right Cessation
-
1994
- 1994-06-28 SG SG84094A patent/SG84094G/en unknown
- 1994-08-04 HK HK78494A patent/HK78494A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1020532C (zh) | 1993-05-05 |
| KR960000608B1 (ko) | 1996-01-09 |
| AU4964490A (en) | 1990-08-24 |
| JP2634319B2 (ja) | 1997-07-23 |
| SG84094G (en) | 1994-11-25 |
| AU619944B2 (en) | 1992-02-06 |
| EP0381637B1 (en) | 1994-03-23 |
| IE900181L (en) | 1990-07-26 |
| WO1990009070A1 (en) | 1990-08-09 |
| CN1044561A (zh) | 1990-08-08 |
| SE462943B (sv) | 1990-09-17 |
| DE69007506D1 (de) | 1994-04-28 |
| PT92981B (pt) | 1997-12-31 |
| KR910700577A (ko) | 1991-03-15 |
| PT92981A (pt) | 1990-07-31 |
| FI904710A0 (fi) | 1990-09-25 |
| CA2007973A1 (en) | 1990-07-26 |
| NO903992L (no) | 1990-09-13 |
| EP0381637A1 (en) | 1990-08-08 |
| IE64267B1 (en) | 1995-07-26 |
| HK78494A (en) | 1994-08-12 |
| ATE103445T1 (de) | 1994-04-15 |
| JPH03503831A (ja) | 1991-08-22 |
| SE8900282D0 (sv) | 1989-01-26 |
| NO903992D0 (no) | 1990-09-13 |
| US5093848A (en) | 1992-03-03 |
| MY104867A (en) | 1994-06-30 |
| DE69007506T2 (de) | 1994-06-30 |
| CA2007973C (en) | 1996-11-05 |
| DK0381637T3 (da) | 1994-08-01 |
| NZ232081A (en) | 1992-11-25 |
| ES2050419T3 (es) | 1994-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO301919B1 (no) | Fremgangsmåte for styring av frekvensen i en koherent radiomottager samt apparat for utförelse av fremgangsmåten | |
| US5136616A (en) | Method of rapidly controlling the frequency of a coherent radio receiver and apparatus for carrying out the method | |
| KR970000794B1 (ko) | 시분할 다중 액세스 통신 시스템에서의 캐리어 주파수 오프셋 보상 방법 및 장치 | |
| US5809009A (en) | Demodulator apparatus for digital radio communication receiver providing pseudo-coherent quadrature demodulation based on periodic estimation of frequency offset | |
| US7239675B2 (en) | GFSK receiver | |
| US6522702B1 (en) | Radio data communication terminal | |
| US7477707B2 (en) | Computationally efficient demodulation for differential phase shift keying | |
| KR100255726B1 (ko) | 자동 주파수 제어방법 및 장치 | |
| JP3251433B2 (ja) | 隣接しないタイムスロットで送信されるディジタル符号化された信号の等化方法 | |
| JP3251432B2 (ja) | ディジタル無線通信における周波数とタイムスロット位置を決定する装置及び方法 | |
| CN109756435B (zh) | 一种对信号的频偏估计方法 | |
| EP0983670A2 (en) | Modulation detection method and apparatus | |
| JP2846215B2 (ja) | デジタル通信用受信機 | |
| JP2001326699A (ja) | プリアンブルパターン識別方法及びプリアンブルパターン識別装置 | |
| JP2003512765A (ja) | デジタル変調された受信信号の測定用復調と変調誤り測定のための装置 | |
| WO1995005705A1 (en) | Digital wireless communication system and method of operation therefor | |
| JPS5949738B2 (ja) | 適応形デジタル・モデムを有する受信機 | |
| JPH0983602A (ja) | 復調装置 | |
| JPH08195779A (ja) | バースト復調器 | |
| JP2000244599A (ja) | 歪み推定装置とそれを用いた復調装置 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |
Free format text: LAPSED IN JULY 2002 |