MXPA05009550A - Tecnicas de modulacion por manipulacion con desplazamiento minimo gaussiano (gmsk). - Google Patents

Tecnicas de modulacion por manipulacion con desplazamiento minimo gaussiano (gmsk).

Info

Publication number
MXPA05009550A
MXPA05009550A MXPA05009550A MXPA05009550A MXPA05009550A MX PA05009550 A MXPA05009550 A MX PA05009550A MX PA05009550 A MXPA05009550 A MX PA05009550A MX PA05009550 A MXPA05009550 A MX PA05009550A MX PA05009550 A MXPA05009550 A MX PA05009550A
Authority
MX
Mexico
Prior art keywords
gmsk
modulation techniques
lut
waveform
gmsk modulation
Prior art date
Application number
MXPA05009550A
Other languages
English (en)
Inventor
Deirdre O'shea Helena
Original Assignee
Qualcomm 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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of MXPA05009550A publication Critical patent/MXPA05009550A/es

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
    • 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
    • H04L25/03828—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties
    • H04L25/03834—Arrangements for spectral shaping; Arrangements for providing signals with specified spectral properties using pulse shaping

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Nonlinear Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Power Engineering (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)

Abstract

Esta descripcion esta enfocada para ejecutar digitalmente tecnicas de modulacion GMSK; las tecnicas de modulacion GMSK digitales utilizan una tabla de busqueda (LUT) y logica de mapeo para generar digitalmente formas de onda GMSK; la logica de mapeo puede reducir significativamente el tamano de la LUT, y por lo tanto puede reducir los requerimientos de memoria que se necesitan para la efectiva modulacion GMSK digitalmente ejecutada; un metodo descrito comprende: seleccionar una primera forma de onda GMSK de una LUT con base en un primer subconjunto de una corriente de bits de entrada; invertir la primera forma de onda GMSK para generar una segunda forma de onda GSMK; y seleccionar una de las primeras y segundas formas de onda GMSK con base en un segundo subconjunto de la corriente de bits de entrada.
MXPA05009550A 2003-03-11 2004-03-05 Tecnicas de modulacion por manipulacion con desplazamiento minimo gaussiano (gmsk). MXPA05009550A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/387,187 US7065157B2 (en) 2003-03-11 2003-03-11 GMSK modulation techniques
PCT/US2004/006758 WO2004082231A2 (en) 2003-03-11 2004-03-05 Gmsk modulation techniques

Publications (1)

Publication Number Publication Date
MXPA05009550A true MXPA05009550A (es) 2005-11-17

Family

ID=32961844

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA05009550A MXPA05009550A (es) 2003-03-11 2004-03-05 Tecnicas de modulacion por manipulacion con desplazamiento minimo gaussiano (gmsk).

Country Status (5)

Country Link
US (1) US7065157B2 (es)
CN (1) CN1759581B (es)
CA (1) CA2518459A1 (es)
MX (1) MXPA05009550A (es)
WO (1) WO2004082231A2 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7551697B1 (en) * 2004-10-01 2009-06-23 Rockwell Collins, Inc. Reduced complexity soft-output noncoherent continuous phase demodulator systems
US7570705B2 (en) * 2005-02-16 2009-08-04 Samsung Electronics Co., Ltd. GMSK modulation using a dual-port memory
US7508884B2 (en) * 2005-03-24 2009-03-24 Harris Corporation System and method for communicating data using constant amplitude equalized waveform
US20070025488A1 (en) * 2005-07-29 2007-02-01 Rambus Inc. RAM-DAC for transmit preemphasis
CN102075471B (zh) * 2010-12-22 2013-04-24 北京邮电大学 基于高斯滤波最小移频键控的光无线融合系统和方法
CN102662160A (zh) * 2012-04-24 2012-09-12 武汉理工大学 一种ais基带信号通讯设备
CN103023478B (zh) * 2012-12-05 2015-04-22 天津光电通信技术有限公司 Mcpfsk、2cpfsk、gmsk波形信号发生器的数字逻辑电路
US10361893B2 (en) * 2014-08-20 2019-07-23 Telefonaktiebolaget Lm Ericsson (Publ) Radio network node, wireless device and methods thereof using GMSK modulation applying negative modulation index
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
US10368282B2 (en) * 2017-03-03 2019-07-30 Itron Networked Solutions, Inc. Mode control design

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
US5121412A (en) * 1989-01-03 1992-06-09 Motorola, Inc. All-digital quadrature modulator
SE463390B (sv) * 1989-03-13 1990-11-12 Ericsson Telefon Ab L M Vaagformsgenerator
JP2968350B2 (ja) * 1991-01-11 1999-10-25 三菱電機株式会社 直交変調回路
US5627499A (en) * 1995-10-13 1997-05-06 Pacific Communication Sciences, Inc. Digital modulator and upconverter having single-bit delta-sigma data converters

Also Published As

Publication number Publication date
US7065157B2 (en) 2006-06-20
CN1759581A (zh) 2006-04-12
CN1759581B (zh) 2010-05-12
CA2518459A1 (en) 2004-09-23
WO2004082231A2 (en) 2004-09-23
US20040179630A1 (en) 2004-09-16
WO2004082231A3 (en) 2004-10-28

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