AU5493799A - Coherent demodulation and sequence estimation for differential psk signals - Google Patents

Coherent demodulation and sequence estimation for differential psk signals

Info

Publication number
AU5493799A
AU5493799A AU54937/99A AU5493799A AU5493799A AU 5493799 A AU5493799 A AU 5493799A AU 54937/99 A AU54937/99 A AU 54937/99A AU 5493799 A AU5493799 A AU 5493799A AU 5493799 A AU5493799 A AU 5493799A
Authority
AU
Australia
Prior art keywords
coherent demodulation
sequence estimation
psk signals
differential psk
differential
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.)
Abandoned
Application number
AU54937/99A
Other languages
English (en)
Inventor
Huseyin Arslan
Gregory E. Bottomley
Rajaram Ramesh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ericsson Inc
Original Assignee
Ericsson Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of AU5493799A publication Critical patent/AU5493799A/en
Abandoned legal-status Critical Current

Links

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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03184—Details concerning the metric
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03375—Passband transmission
    • 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
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03178—Arrangements involving sequence estimation techniques
    • H04L25/03312—Arrangements specific to the provision of output signals
    • H04L25/03318—Provision of soft decisions
AU54937/99A 1998-08-31 1999-08-24 Coherent demodulation and sequence estimation for differential psk signals Abandoned AU5493799A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/143,754 US6487255B1 (en) 1998-08-31 1998-08-31 Information generation for coherent demodulation of differentially encoded signals
US09143754 1998-08-31
PCT/US1999/019221 WO2000013386A1 (en) 1998-08-31 1999-08-24 Coherent demodulation and sequence estimation for differential psk signals

Publications (1)

Publication Number Publication Date
AU5493799A true AU5493799A (en) 2000-03-21

Family

ID=22505447

Family Applications (1)

Application Number Title Priority Date Filing Date
AU54937/99A Abandoned AU5493799A (en) 1998-08-31 1999-08-24 Coherent demodulation and sequence estimation for differential psk signals

Country Status (6)

Country Link
US (1) US6487255B1 (US06487255-20021126-M00008.png)
EP (1) EP1110359A1 (US06487255-20021126-M00008.png)
CN (1) CN1120603C (US06487255-20021126-M00008.png)
AU (1) AU5493799A (US06487255-20021126-M00008.png)
HK (1) HK1040855B (US06487255-20021126-M00008.png)
WO (1) WO2000013386A1 (US06487255-20021126-M00008.png)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6574293B1 (en) * 1998-10-28 2003-06-03 Ericsson Inc. Receivers and methods for reducing interference in radio communications
US6745352B2 (en) * 2000-12-13 2004-06-01 Ericsson Inc. Methods of estimating error rates for communications received using iterative processing and related receivers
US6983029B2 (en) * 2000-12-15 2006-01-03 Maxim Integrated Products, Inc. Blind channel estimation and data detection for PSK OFDM-based receivers
US6823027B2 (en) * 2001-03-05 2004-11-23 Telefonaktiebolaget Lm Ericsson (Publ) Method for enhancing soft-value information
US7046719B2 (en) * 2001-03-08 2006-05-16 Motorola, Inc. Soft handoff between cellular systems employing different encoding rates
US7450631B2 (en) 2001-10-26 2008-11-11 Intel Corporation Metric correction for multi user detection, for long codes DS-CDMA
KR100487183B1 (ko) * 2002-07-19 2005-05-03 삼성전자주식회사 터보 부호의 복호 장치 및 방법
WO2004015947A1 (en) * 2002-08-02 2004-02-19 Koninklijke Philips Electronics N.V. Differential decoder followed by non-linear compensator
US7609777B2 (en) * 2002-08-30 2009-10-27 Alcatel-Lucent Usa Inc. Maximum likelihood a posteriori probability detector
US20040165683A1 (en) * 2002-09-04 2004-08-26 Gupta Alok Kumar Channel estimation for communication systems
KR100470401B1 (ko) 2002-12-24 2005-02-05 한국전자통신연구원 그룹화 최유도 검출을 이용한 무선 통신 시스템 및 방법
US7701915B2 (en) * 2003-06-27 2010-04-20 Nokia Corporation Method in a communication system, a communication system and a communication device
CN1305285C (zh) * 2003-10-13 2007-03-14 中兴通讯股份有限公司 一种实现差分偏移四相键控相干解调的方法及装置
US7145966B2 (en) * 2004-06-30 2006-12-05 Qualcomm, Incorporated Signal quality estimation for continuous phase modulation
CN100385886C (zh) * 2004-11-18 2008-04-30 中国人民解放军理工大学通信工程学院 正交扩频差分相位调制中的差分比特软值输出方法
US7860194B2 (en) * 2005-11-11 2010-12-28 Samsung Electronics Co., Ltd. Method and apparatus for normalizing input metric to a channel decoder in a wireless communication system
RU2303330C1 (ru) 2006-02-13 2007-07-20 Самсунг Электроникс Ко., Лтд. Способ приема сигнала в системе связи с несколькими каналами передачи и приема
KR100841936B1 (ko) * 2006-12-29 2008-06-27 포스데이타 주식회사 안테나별 간섭을 고려한 수신신호 결합 장치 및 방법과이를 이용한 심볼메트릭 산출 장치 및 방법
KR101214509B1 (ko) * 2007-05-17 2012-12-24 삼성전자주식회사 연판정 값 생성 장치 및 그 방법
KR100932260B1 (ko) 2007-05-31 2009-12-16 한국전자통신연구원 다중입력 다중출력 시스템을 위한 복호화 장치 및 그 방법
WO2008147067A1 (en) * 2007-05-31 2008-12-04 Electronics And Telecommunications Research Institute Decoding device and method for mimo system
US7860191B2 (en) * 2007-09-07 2010-12-28 Qualcomm Incorporated Optimal two-layer coherent demodulation for D-PSK (Differential Phase Shift Keying)
US7995678B2 (en) * 2007-11-28 2011-08-09 Harris Corporation System and method for communicating data using weighted bit soft decisions for differentially encoded phase shift keying
US8806306B2 (en) * 2011-03-07 2014-08-12 Acacia Communications Inc. Generation of soft bit metrics for differentially encoded quadrature phase shift keying (QPSK)
KR20220018589A (ko) * 2019-07-03 2022-02-15 엘지전자 주식회사 1-비트 양자화 시스템에서의 송수신 방법 및 이를 위한 장치
CN114097190B (zh) * 2019-07-03 2023-11-03 Lg电子株式会社 1比特量化系统中的发送/接收方法及其装置

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0449327B1 (en) * 1990-03-30 1998-07-15 Nec Corporation Noise-immune space diversity receiver
EP0504890B1 (en) 1991-03-20 2002-06-19 Sony Corporation Demodulator for demodulating a pi/4-shift DQPSK signal
US5285480A (en) 1991-09-03 1994-02-08 General Electric Company Adaptive MLSE-VA receiver for digital cellular radio
US5513215A (en) * 1993-09-20 1996-04-30 Glenayre Electronics, Inc. High speed simulcast data system using adaptive compensation
US5608763A (en) 1993-12-30 1997-03-04 Motorola, Inc. Method and apparatus for decoding a radio frequency signal containing a sequence of phase values
US5680419A (en) * 1994-08-02 1997-10-21 Ericsson Inc. Method of and apparatus for interference rejection combining in multi-antenna digital cellular communications systems
US5754600A (en) 1994-08-29 1998-05-19 Motorola, Inc. Method and apparatus for optimum soft-decision viterbi decoding of convolutional-differential encoded QPSK data in coherent detection
US5619524A (en) 1994-10-04 1997-04-08 Motorola, Inc. Method and apparatus for coherent communication reception in a spread-spectrum communication system
US5706313A (en) 1994-11-01 1998-01-06 Motorola, Inc. Soft decision digital communication method and apparatus
US5729558A (en) 1995-03-08 1998-03-17 Lucent Technologies Inc. Method of compensating for Doppler error in a wireless communications system, such as for GSM and IS54
US5867538A (en) * 1995-08-15 1999-02-02 Hughes Electronics Corporation Computational simplified detection of digitally modulated radio signals providing a detection of probability for each symbol
US5754599A (en) * 1996-01-04 1998-05-19 Motorola, Inc. Method and apparatus for coherent channel estimation in a communication system
GB2309865A (en) 1996-01-30 1997-08-06 Sony Corp Radio receiver with Doppler frequency shift correction
EP0792051A3 (de) * 1996-02-23 1999-07-07 Ascom Tech Ag Verfahren für die kohärente Demodulation eines Empfangssignals
US5768307A (en) * 1996-09-13 1998-06-16 Telefonaktiebolaget Lm Ericsson Coherent demodulation with decision-directed channel estimation for digital communication
IL120210A (en) 1997-02-13 1999-12-31 Dspc Tech Ltd Synchronization system and method for digital communication systems
US6151487A (en) * 1999-08-31 2000-11-21 Hughes Electronics Corporation Demodulation structure for fast fading cellular channels

Also Published As

Publication number Publication date
CN1120603C (zh) 2003-09-03
EP1110359A1 (en) 2001-06-27
HK1040855A1 (en) 2002-06-21
US6487255B1 (en) 2002-11-26
HK1040855B (zh) 2004-05-21
WO2000013386A1 (en) 2000-03-09
CN1315102A (zh) 2001-09-26

Similar Documents

Publication Publication Date Title
AU5493799A (en) Coherent demodulation and sequence estimation for differential psk signals
AU4405297A (en) Coherent demodulation with decision-directed channel estimation for digital communication
AU1782895A (en) Gradiometer based terrain estimation
AU1930700A (en) Background estimation and segmentation based on range and color
AU2001267030A1 (en) Method and apparatus for demodulating coherent and non-coherent modulated signals
AU3447499A (en) An equalizer for use in multicarrier modulation systems
AU3638099A (en) Skew-insensitive low voltage differential receiver
AU6774098A (en) Differential pair cable
GB2348345B (en) Demodulator and demodulation method for demodulating quadrature modulation signals
AU3218699A (en) Low complexity frequency estimator and interference cancellation method and device
AU3082299A (en) Structural connector
AU4792896A (en) PSK signal demodulation method and apparatus
AU1193000A (en) Wdm-channel equalizer
AU9194098A (en) Method and arrangement for demodulating data symbols
AUPO047596A0 (en) Locking differential
AU3431499A (en) Submarine trenching vehicle and method
AU1240401A (en) Carrier recovery and doppler frequency estimation
AU2568899A (en) Sweetening agent
AU1776297A (en) Phase shift keying signal demodulation method and device
AU4472097A (en) Method and circuit for digital modulation and method and circuit for digital demodulation
AU3035799A (en) Demodulator circuits
AU1020500A (en) Hydraulic differential
AU2291699A (en) Hidden images
AU1935700A (en) Current mode data transmission
GB0124309D0 (en) Modulation and demodulation for signal transmission

Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase