PT92434A - Modulador digital de manipulacao por chave de desvio minimo segundo gauss com processamento de intervalos com numeros nao inteiros de bits - Google Patents

Modulador digital de manipulacao por chave de desvio minimo segundo gauss com processamento de intervalos com numeros nao inteiros de bits

Info

Publication number
PT92434A
PT92434A PT92434A PT9243489A PT92434A PT 92434 A PT92434 A PT 92434A PT 92434 A PT92434 A PT 92434A PT 9243489 A PT9243489 A PT 9243489A PT 92434 A PT92434 A PT 92434A
Authority
PT
Portugal
Prior art keywords
digital
signal
minimum
clock signal
bits
Prior art date
Application number
PT92434A
Other languages
English (en)
Other versions
PT92434B (pt
Inventor
Chih-Fei Wang
Original Assignee
Motorola 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 Motorola Inc filed Critical Motorola Inc
Publication of PT92434A publication Critical patent/PT92434A/pt
Publication of PT92434B publication Critical patent/PT92434B/pt

Links

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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2003—Modulator circuits; Transmitter circuits for continuous phase modulation
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2017—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes are non-linear, e.g. generalized and Gaussian minimum shift keying, tamed frequency modulation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • H03C3/02—Details
    • H03C3/08—Modifications of modulator to linearise modulation, e.g. by feedback, and clearly applicable to more than one type of modulator

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Transmitters (AREA)
  • Gyroscopes (AREA)
  • Holo Graphy (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)
  • Complex Calculations (AREA)
PT92434A 1988-11-30 1989-11-28 Modulador digital de manipulacao por chave de desvio minimo segundo gauss com processamento de intervalos com numeros nao inteiros de bits PT92434B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27808088A 1988-11-30 1988-11-30

Publications (2)

Publication Number Publication Date
PT92434A true PT92434A (pt) 1990-05-31
PT92434B PT92434B (pt) 1998-04-30

Family

ID=23063601

Family Applications (1)

Application Number Title Priority Date Filing Date
PT92434A PT92434B (pt) 1988-11-30 1989-11-28 Modulador digital de manipulacao por chave de desvio minimo segundo gauss com processamento de intervalos com numeros nao inteiros de bits

Country Status (17)

Country Link
EP (1) EP0371751B1 (pt)
JP (1) JP2797710B2 (pt)
KR (1) KR940000922B1 (pt)
AT (1) ATE128302T1 (pt)
CA (1) CA2000475C (pt)
DE (1) DE68924332T2 (pt)
DK (1) DK101691D0 (pt)
ES (1) ES2077585T3 (pt)
GR (1) GR3018008T3 (pt)
HK (1) HK1000407A1 (pt)
IE (1) IE69762B1 (pt)
IL (1) IL91945A (pt)
MX (1) MX171396B (pt)
MY (1) MY104453A (pt)
PT (1) PT92434B (pt)
TR (1) TR24950A (pt)
WO (1) WO1990006624A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036512A1 (de) * 1990-11-16 1992-05-21 Philips Patentverwaltung Digitale schaltungsanordnung zur naeherungsweisen realisierung einer gmsk (gaussian minimum shift keying)-modulation
US5495505A (en) * 1990-12-20 1996-02-27 Motorola, Inc. Increased frequency resolution in a synthesizer
JP2968350B2 (ja) * 1991-01-11 1999-10-25 三菱電機株式会社 直交変調回路
FR2675001B1 (fr) * 1991-04-03 1993-07-30 Matra Communication Procede et dispositif de modulation numerique a composantes en phase et en quadrature et installation de transmission en comportant application.
US5361046A (en) * 1992-12-22 1994-11-01 Hughes Aircraft Company Modulator having fractional sample/symbol time
GB2335122A (en) * 1998-03-05 1999-09-08 Motorola Gmbh Transmitter adapted to reduce adjacent channel interference
CN107171995B (zh) * 2017-02-27 2020-09-29 西安宇飞电子技术有限公司 Gmsk信号生成装置及方法、信号检测装置及方法
CN110798420B (zh) * 2019-11-08 2022-04-19 天津津航计算技术研究所 一种内插倍数可变的gmsk调制实现方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5630340A (en) * 1979-08-20 1981-03-26 Sony Corp Digital signal transmitting method
JPS5647153A (en) * 1979-09-27 1981-04-28 Toshiba Corp Digital phase modulation system
NL8402318A (nl) * 1984-07-23 1986-02-17 Philips Nv Inrichting voor het genereren van een hoekgemoduleerd draaggolfsignaal van constante amplitude in responsie op datasignalen.

Also Published As

Publication number Publication date
CA2000475C (en) 1994-05-03
IL91945A (en) 1994-01-25
DK101691A (da) 1991-05-28
DE68924332D1 (de) 1995-10-26
DE68924332T2 (de) 1996-05-15
PT92434B (pt) 1998-04-30
JPH04502540A (ja) 1992-05-07
EP0371751B1 (en) 1995-09-20
DK101691D0 (da) 1991-05-28
KR940000922B1 (ko) 1994-02-04
IE893247A1 (en) 1991-06-05
MY104453A (en) 1994-03-31
IE69762B1 (en) 1996-10-02
IL91945A0 (en) 1990-06-10
WO1990006624A1 (en) 1990-06-14
ES2077585T3 (es) 1995-12-01
MX171396B (es) 1993-10-22
EP0371751A3 (en) 1992-01-29
TR24950A (tr) 1992-07-28
JP2797710B2 (ja) 1998-09-17
CA2000475A1 (en) 1990-05-31
EP0371751A2 (en) 1990-06-06
GR3018008T3 (en) 1996-02-29
IE893247L (en) 1990-05-30
KR900702633A (ko) 1990-12-07
HK1000407A1 (en) 1998-03-20
ATE128302T1 (de) 1995-10-15

Similar Documents

Publication Publication Date Title
US5425055A (en) Digital radio modulator
EP0377180A3 (en) All-digital quadrature modulator
ATE123194T1 (de) Steuerspannungsgenerator in einer senderanordnung für digital modulierte signale.
PT92434A (pt) Modulador digital de manipulacao por chave de desvio minimo segundo gauss com processamento de intervalos com numeros nao inteiros de bits
JPS6436153A (en) Quadruple phase modulator
DE50004336D1 (de) Digitales gmsk-filter
US5177769A (en) Digital circuits for generating signal sequences for linear TDMA systems
EP0200977A3 (en) Digital demodulator
DK0388381T3 (da) Signalgenerator
GR3023821T3 (en) Power line communication system
GB1517199A (en) Signal converters
GB1519574A (en) Quadraphse modulator
SU1388974A2 (ru) Фазовый модул тор
JPS6486732A (en) Psk modulation circuit
ATE142825T1 (de) Schaltungsanordnung zur demodulation eines hilfsträgers
JPH0423542A (ja) 直交形ｇｍｓｋ変調装置
JPH0450785B2 (pt)
JPS5513504A (en) Phase modulation system
JPS6213143A (ja) 直交振幅歪補正回路
FR2293838A1 (fr) Generateur de signaux electriques codes en morse
JPS57211859A (en) Demodulator for phase modulating signal
JPH04217145A (ja) 搬送波発生装置
FR2249509A1 (en) Frequency modulation and differential phase demodulation system - provides signal with zero spectrum at zero frequency

Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19980130

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19990731