NO320253B1 - Fremgangsmate ved fasemodulering av et digitalt signal i et digitalt kommunikasjonssystem og tilsvarende anordning - Google Patents

Fremgangsmate ved fasemodulering av et digitalt signal i et digitalt kommunikasjonssystem og tilsvarende anordning Download PDF

Info

Publication number
NO320253B1
NO320253B1 NO19971897A NO971897A NO320253B1 NO 320253 B1 NO320253 B1 NO 320253B1 NO 19971897 A NO19971897 A NO 19971897A NO 971897 A NO971897 A NO 971897A NO 320253 B1 NO320253 B1 NO 320253B1
Authority
NO
Norway
Prior art keywords
components
equipment
phase
delay
digital signal
Prior art date
Application number
NO19971897A
Other languages
English (en)
Norwegian (no)
Other versions
NO971897D0 (no
NO971897L (no
Inventor
Hisashi Kawabata
Original Assignee
Nec 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 Nec Corp filed Critical Nec Corp
Publication of NO971897D0 publication Critical patent/NO971897D0/no
Publication of NO971897L publication Critical patent/NO971897L/no
Publication of NO320253B1 publication Critical patent/NO320253B1/no

Links

Classifications

    • 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
    • H04L27/36—Modulator circuits; Transmitter circuits
    • H04L27/366—Arrangements for compensating undesirable properties of the transmission path between the modulator and the demodulator
    • 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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
NO19971897A 1996-04-26 1997-04-24 Fremgangsmate ved fasemodulering av et digitalt signal i et digitalt kommunikasjonssystem og tilsvarende anordning NO320253B1 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8106540A JP3024548B2 (ja) 1996-04-26 1996-04-26 位相変調方法および位相変調装置

Publications (3)

Publication Number Publication Date
NO971897D0 NO971897D0 (no) 1997-04-24
NO971897L NO971897L (no) 1997-10-27
NO320253B1 true NO320253B1 (no) 2005-11-14

Family

ID=14436218

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19971897A NO320253B1 (no) 1996-04-26 1997-04-24 Fremgangsmate ved fasemodulering av et digitalt signal i et digitalt kommunikasjonssystem og tilsvarende anordning

Country Status (5)

Country Link
US (1) US5987072A (ja)
JP (1) JP3024548B2 (ja)
DE (1) DE19717354A1 (ja)
GB (1) GB2312597B (ja)
NO (1) NO320253B1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6621876B2 (en) * 2001-03-01 2003-09-16 Ericsson Inc. System and method to reduce phase modulation bandwidth
US10700735B2 (en) 2015-05-14 2020-06-30 Sony Corporation Transmission device, method thereof, and program

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4726039A (en) * 1986-05-09 1988-02-16 Honeywell Inc. Constant amplitude PSK modulator
JPH01276860A (ja) * 1988-04-27 1989-11-07 Alps Electric Co Ltd Ｐｓｋ変調回路
US5091919A (en) * 1989-02-08 1992-02-25 Nokia-Mobira Oy Transmitter arrangement for digitally modulated signals
JPH07114420B2 (ja) * 1989-05-12 1995-12-06 富士通株式会社 変調回路
JP2728114B2 (ja) * 1994-07-11 1998-03-18 日本電気株式会社 Ｆｍ変調回路
US5491457A (en) * 1995-01-09 1996-02-13 Feher; Kamilo F-modulation amplification
US5548253A (en) * 1995-04-17 1996-08-20 Omnipoint Corporation Spectrally efficient quadrature amplitude modulator

Also Published As

Publication number Publication date
JPH09294145A (ja) 1997-11-11
NO971897D0 (no) 1997-04-24
GB2312597A (en) 1997-10-29
NO971897L (no) 1997-10-27
GB9708493D0 (en) 1997-06-18
US5987072A (en) 1999-11-16
JP3024548B2 (ja) 2000-03-21
DE19717354A1 (de) 1997-10-30
GB2312597B (en) 2000-10-04

Similar Documents

Publication Publication Date Title
US5675608A (en) Synchronous transmitter and receiver of spread spectrum communication method
KR100661028B1 (ko) 디지털 통신 시스템에서 위상 회전 기법을 사용하는시그날링
US4899367A (en) Multi-level quadrature amplitude modulator system with fading compensation means
CA2025232C (en) Carrier recovery system
JP2010521939A5 (ja)
US5313493A (en) Plural-differential, phase-shift-keyed modulation, communication system
JP3575883B2 (ja) ディジタル復調器
US6373903B1 (en) Apparatus and method for increasing the effective data rate in communication systems utilizing phase modulation
NO320253B1 (no) Fremgangsmate ved fasemodulering av et digitalt signal i et digitalt kommunikasjonssystem og tilsvarende anordning
KR100788012B1 (ko) 스프레드 스펙트럼 통신 시스템에서의 옵셋 보정
EP1003312A2 (en) Carrier recovery from digitally phase modulated signals
JPH10163816A (ja) 自動周波数制御回路
CN101010871B (zh) 用于无线通信终端的接收机和方法
US5541966A (en) System and circuit for estimating the carrier frequency of a PSK numeric signal
JP3178138B2 (ja) フレーム同期回路及びフレーム同期方法
US6587503B1 (en) Information processing apparatus and method
AU731683B2 (en) Diversity apparatus with improved ability of reproducing carrier wave in synchronous detection
JP2003218969A (ja) 復調装置
JPH0222583B2 (ja)
US6243429B1 (en) Data demodulator for correcting bit errors
JPH0365827A (ja) ダイバーシチ受信回路
JP2827875B2 (ja) マイクロ波帯信号発生装置
JPH06197090A (ja) データ送受信装置
US6587523B1 (en) Radio signal receiving apparatus and a method of radio signal reception
KR0145543B1 (ko) 주파수 오차 보상 기능을 갖는 위상변조신호 검파기

Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees