DE69712092D1 - Digitale kontinuierliche phasenmodulation für eine durch einen direkten digitalen synthetisierer gesteuerte phasenregelschleife - Google Patents

Digitale kontinuierliche phasenmodulation für eine durch einen direkten digitalen synthetisierer gesteuerte phasenregelschleife

Info

Publication number
DE69712092D1
DE69712092D1 DE69712092T DE69712092T DE69712092D1 DE 69712092 D1 DE69712092 D1 DE 69712092D1 DE 69712092 T DE69712092 T DE 69712092T DE 69712092 T DE69712092 T DE 69712092T DE 69712092 D1 DE69712092 D1 DE 69712092D1
Authority
DE
Germany
Prior art keywords
digital
control loop
synthetizer
loop controlled
phase modulation
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.)
Expired - Lifetime
Application number
DE69712092T
Other languages
English (en)
Other versions
DE69712092T2 (de
Inventor
Bo Sundegard
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of DE69712092D1 publication Critical patent/DE69712092D1/de
Application granted granted Critical
Publication of DE69712092T2 publication Critical patent/DE69712092T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C3/00—Angle modulation
    • 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
    • H04L27/2021—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained
    • H04L27/2025—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change per symbol period is not constrained in which the phase changes in a piecewise linear manner within each symbol period
DE69712092T 1996-12-20 1997-12-16 Digitale kontinuierliche phasenmodulation für eine durch einen direkten digitalen synthetisierer gesteuerte phasenregelschleife Expired - Lifetime DE69712092T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/771,632 US5834985A (en) 1996-12-20 1996-12-20 Digital continuous phase modulation for a DDS-driven phase locked loop
PCT/SE1997/002121 WO1998028852A2 (en) 1996-12-20 1997-12-16 Continuous phase modulator, comprising a direct digital synthesizer followed by a phase locked loop

Publications (2)

Publication Number Publication Date
DE69712092D1 true DE69712092D1 (de) 2002-05-23
DE69712092T2 DE69712092T2 (de) 2002-10-10

Family

ID=25092470

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69712092T Expired - Lifetime DE69712092T2 (de) 1996-12-20 1997-12-16 Digitale kontinuierliche phasenmodulation für eine durch einen direkten digitalen synthetisierer gesteuerte phasenregelschleife

Country Status (9)

Country Link
US (1) US5834985A (de)
EP (1) EP0944960B1 (de)
KR (1) KR20000069646A (de)
CN (1) CN1245596A (de)
AU (1) AU724122B2 (de)
BR (1) BR9714050A (de)
CA (1) CA2275589A1 (de)
DE (1) DE69712092T2 (de)
WO (1) WO1998028852A2 (de)

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US6704558B1 (en) 1999-01-22 2004-03-09 Parkervision, Inc. Image-reject down-converter and embodiments thereof, such as the family radio service
US6853690B1 (en) 1999-04-16 2005-02-08 Parkervision, Inc. Method, system and apparatus for balanced frequency up-conversion of a baseband signal and 4-phase receiver and transceiver embodiments
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US7065162B1 (en) 1999-04-16 2006-06-20 Parkervision, Inc. Method and system for down-converting an electromagnetic signal, and transforms for same
US7693230B2 (en) 1999-04-16 2010-04-06 Parkervision, Inc. Apparatus and method of differential IQ frequency up-conversion
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FR2796799B1 (fr) * 1999-07-22 2001-10-05 Cit Alcatel Procede et dispositif de modulation dans un emetteur
US8295406B1 (en) 1999-08-04 2012-10-23 Parkervision, Inc. Universal platform module for a plurality of communication protocols
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DE60137833D1 (de) * 2001-04-09 2009-04-16 Texas Instruments Inc Frequenzmodulator unter Verwendung eines Phasenregelkreises
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US7072427B2 (en) 2001-11-09 2006-07-04 Parkervision, Inc. Method and apparatus for reducing DC offsets in a communication system
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US7421043B2 (en) * 2002-11-27 2008-09-02 Lsi Corporation Method and/or apparatus for stabilizing the frequency of digitally synthesized waveforms
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US7826550B2 (en) * 2007-02-28 2010-11-02 Broadcom Corp. Method and system for a high-precision frequency generator using a direct digital frequency synthesizer for transmitters and receivers
US20080205545A1 (en) * 2007-02-28 2008-08-28 Ahmadreza Rofougaran Method and System for Using a Phase Locked Loop for Upconversion in a Wideband Crystalless Polar Transmitter
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CN102468868B (zh) * 2010-11-03 2016-03-30 苏州普源精电科技有限公司 Dds信号发生器及跳频方法
US8476945B2 (en) 2011-03-23 2013-07-02 International Business Machines Corporation Phase profile generator
CN102412837B (zh) * 2011-11-18 2013-06-05 北京航天测控技术有限公司 一种低杂散小步进频综实现方法
WO2013094459A1 (ja) * 2011-12-19 2013-06-27 古野電気株式会社 ダイレクトデジタルシンセサイザ、基準周波数発生装置、及び正弦波出力方法
US8848831B2 (en) * 2012-09-20 2014-09-30 Lsi Corporation Direct digital synthesis of quadrature modulated signals
CN103873160B (zh) * 2012-12-12 2017-12-26 北京普源精电科技有限公司 一种改善数字相位调制的相位跳变的方法及装置
CN104393871A (zh) * 2014-12-02 2015-03-04 贵州航天计量测试技术研究所 一种dds上变频后驱动锁相环的频率综合器
CN107995138B (zh) * 2017-12-29 2020-10-23 中国电子科技集团公司第二十研究所 Sccpm系统的联合迭代载波同步与解调方法
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Also Published As

Publication number Publication date
AU724122B2 (en) 2000-09-14
EP0944960A2 (de) 1999-09-29
KR20000069646A (ko) 2000-11-25
WO1998028852A2 (en) 1998-07-02
AU5502298A (en) 1998-07-17
WO1998028852A3 (en) 1998-11-26
CA2275589A1 (en) 1998-07-02
BR9714050A (pt) 2000-05-09
DE69712092T2 (de) 2002-10-10
EP0944960B1 (de) 2002-04-17
CN1245596A (zh) 2000-02-23
US5834985A (en) 1998-11-10

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