IL119340A - Finding a narrative symbol I adaptively to a digital communication system with an amplitude phase - Google Patents

Finding a narrative symbol I adaptively to a digital communication system with an amplitude phase

Info

Publication number
IL119340A
IL119340A IL11934096A IL11934096A IL119340A IL 119340 A IL119340 A IL 119340A IL 11934096 A IL11934096 A IL 11934096A IL 11934096 A IL11934096 A IL 11934096A IL 119340 A IL119340 A IL 119340A
Authority
IL
Israel
Prior art keywords
bit
bang
phase
keyed
signals
Prior art date
Application number
IL11934096A
Other languages
English (en)
Hebrew (he)
Other versions
IL119340A0 (en
Original Assignee
Loral Aerospace Corp
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 Loral Aerospace Corp filed Critical Loral Aerospace Corp
Publication of IL119340A0 publication Critical patent/IL119340A0/xx
Publication of IL119340A publication Critical patent/IL119340A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • 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
    • H04L25/06—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection
    • H04L25/068—DC level restoring means; Bias distortion correction ; Decision circuits providing symbol by symbol detection by sampling faster than the nominal bit rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/32—Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
    • H04L27/34—Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems
    • H04L27/38—Demodulator circuits; Receiver circuits
    • H04L27/3818—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers
    • H04L27/3827—Demodulator circuits; Receiver circuits using coherent demodulation, i.e. using one or more nominally phase synchronous carriers in which the carrier is recovered using only the demodulated baseband signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)
IL11934096A 1995-10-16 1996-10-01 Finding a narrative symbol I adaptively to a digital communication system with an amplitude phase IL119340A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/543,814 US5898737A (en) 1995-10-16 1995-10-16 Adaptive digital symbol recovery for amplitude phased keyed digital communication systems

Publications (2)

Publication Number Publication Date
IL119340A0 IL119340A0 (en) 1997-01-10
IL119340A true IL119340A (en) 2001-09-13

Family

ID=24169650

Family Applications (1)

Application Number Title Priority Date Filing Date
IL11934096A IL119340A (en) 1995-10-16 1996-10-01 Finding a narrative symbol I adaptively to a digital communication system with an amplitude phase

Country Status (11)

Country Link
US (1) US5898737A (de)
EP (1) EP0768783A3 (de)
JP (1) JPH09181789A (de)
KR (1) KR970024755A (de)
CN (1) CN1153426C (de)
AU (1) AU720461B2 (de)
BR (1) BR9605144A (de)
CA (1) CA2184306A1 (de)
IL (1) IL119340A (de)
SG (1) SG90014A1 (de)
TW (1) TW333732B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000278344A (ja) * 1999-03-25 2000-10-06 Sanyo Electric Co Ltd 疑似ロック検出システム
US6614861B1 (en) * 1999-04-16 2003-09-02 Nokia Networks Oy Method and apparatus for higher dimensional modulation
US6133785A (en) * 1999-06-30 2000-10-17 Harris Corporation False carrier lock receiver and associated methods for detection
KR100652028B1 (ko) * 1999-07-13 2006-11-30 엘지전자 주식회사 다매체 디지털 방송 수신기의 락 디텍트(ｌｏｃｋ ｄｅｔｅｃｔ)장치
US6373389B1 (en) 2000-04-21 2002-04-16 Usm Systems, Ltd. Event driven information system
US6812783B2 (en) * 2001-08-31 2004-11-02 Northrop Grumman Corporation Discritized phase constellation continuous phase modulation demodulator
DE102006030915B4 (de) * 2006-06-29 2008-04-10 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optischer Empfänger für den Empfang eines Signales mit M-wertiger sternförmiger Quadratur-Amplitudenmodulation mit differenzieller Phasenkodierung und dessen Verwendung
FR3085568B1 (fr) * 2018-08-31 2020-08-07 Zodiac Data Systems Procede de datation de signaux de telemesure
CN113189403B (zh) * 2021-04-12 2022-11-25 东北大学 一种自适应正交解调方法
CN117172163B (zh) * 2023-08-15 2024-04-12 重庆西南集成电路设计有限责任公司 幅相控制电路的幅相二维优化方法、系统、介质及电子设备

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4546322A (en) * 1983-08-24 1985-10-08 Reliance Electric Company Adaptable demodulator for arbitrary amplitude and phase keyed modulation signals
US4866395A (en) * 1988-11-14 1989-09-12 Gte Government Systems Corporation Universal carrier recovery and data detection for digital communication systems
US4987375A (en) * 1990-02-15 1991-01-22 Northern Telecom Limited Carrier lock detector for a QAM system
FI85548C (fi) * 1990-06-14 1992-04-27 Nokia Oy Ab Mottagningsfoerfarande och mottagare foer diskreta signaler.
JP2794964B2 (ja) * 1991-02-27 1998-09-10 日本電気株式会社 制御信号発生回路
AU655384B2 (en) * 1991-07-26 1994-12-15 General Instrument Corporation Carrier phase recovery for an adaptive equalizer
US5315617A (en) * 1992-05-29 1994-05-24 General Electric Company QAM encoding for high-definition television system
US5264937A (en) * 1992-07-29 1993-11-23 Thomson Consumer Electronics, Inc. Apparatus for time division multiplexed processing of frequency division multiplexed signals
US5563916A (en) * 1995-06-05 1996-10-08 Hitachi America, Ltd. Apparatus and method for varying the slew rate of a digital automatic gain control circuit
US5671253A (en) * 1995-07-12 1997-09-23 Thomson Consumer Electronics, Inc. Apparatus for demodulating and decoding video signals encoded in different formats
US5809086A (en) * 1996-03-20 1998-09-15 Lucent Technologies Inc. Intelligent timing recovery for a broadband adaptive equalizer

Also Published As

Publication number Publication date
CN1153426C (zh) 2004-06-09
CN1155800A (zh) 1997-07-30
AU720461B2 (en) 2000-06-01
US5898737A (en) 1999-04-27
KR970024755A (ko) 1997-05-30
EP0768783A2 (de) 1997-04-16
IL119340A0 (en) 1997-01-10
CA2184306A1 (en) 1997-04-17
SG90014A1 (en) 2002-07-23
TW333732B (en) 1998-06-11
BR9605144A (pt) 1998-07-07
EP0768783A3 (de) 1998-04-01
JPH09181789A (ja) 1997-07-11
AU6578096A (en) 1997-04-24

Similar Documents

Publication Publication Date Title
US5872812A (en) Carrier reproducing circuit including region deciding circuitry
Haring et al. Performance bounds for optimum and suboptimum reception under class-A impulsive noise
US5898737A (en) Adaptive digital symbol recovery for amplitude phased keyed digital communication systems
AU2005278238B2 (en) Method and apparatus for calculating log-likelihood ratio for decoding in a receiver for a mobile communication system
CA2122561C (en) Adaptive threshold decision device for multistate modulation
GB2286950A (en) A direct conversion receiver
US5509030A (en) RF receiver AGC incorporating time domain equalizer circuity
JPH11331300A (ja) 復調装置
JP3691936B2 (ja) 多値直交振幅変調装置及び多値直交振幅変調方法
US6973142B2 (en) Timing synchronization for M-DPSK channels
US6519303B1 (en) Clock reproduction circuit
EP0235300A1 (de) Funkdaten-übertragungssystem
US6304136B1 (en) Reduced noise sensitivity, high performance FM demodulator circuit and method
HK1000652A (en) Adaptive symbol recovery for apsk signals
Karim et al. BER performance evaluation of different phase shift keying modulation schemes
US4803385A (en) Phase detecting circuit
US11736322B1 (en) Signal level tracking and application to Viterbi equalization
US9313018B1 (en) Circuit and method for clock recovery of quadrature amplitude modulated waveforms
CA2552020C (en) Method and apparatus for wide dynamic range reduction
CN1152976A (zh) 直接变频接收机
JP3099759B2 (ja) ビタビ復号回路
RU2790140C1 (ru) Цифровой демодулятор сигналов с двухуровневой амплитудно-фазовой манипуляцией и относительной оценкой амплитуды символа
US5757859A (en) Apparatus and method for recovering packet data with unknown delays and error transients
US20110075776A1 (en) Method and circuit for digitally filtering a signal
WO2004047314A2 (en) Reduced phase error derotator system and method

Legal Events

Date Code Title Description
KB Patent renewed
KB Patent renewed
HC Change of name of proprietor(s)
KB Patent renewed
KB Patent renewed
EXP Patent expired