CN1119854C - 精确稳定的角调制rf信号的直接数字合成 - Google Patents
精确稳定的角调制rf信号的直接数字合成 Download PDFInfo
- Publication number
- CN1119854C CN1119854C CN99804405A CN99804405A CN1119854C CN 1119854 C CN1119854 C CN 1119854C CN 99804405 A CN99804405 A CN 99804405A CN 99804405 A CN99804405 A CN 99804405A CN 1119854 C CN1119854 C CN 1119854C
- Authority
- CN
- China
- Prior art keywords
- signal
- phase
- modulation signal
- locked loop
- circuit
- 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
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0958—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation by varying the characteristics of the voltage controlled oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0966—Modifications of modulator for regulating the mean frequency using a phase locked loop modulating the reference clock
-
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0916—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop
- H03C3/0925—Modifications of modulator for regulating the mean frequency using a phase locked loop with frequency divider or counter in the loop applying frequency modulation at the divider in the feedback loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/0941—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation at more than one point in the loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/02—Details
- H03C3/09—Modifications of modulator for regulating the mean frequency
- H03C3/0908—Modifications of modulator for regulating the mean frequency using a phase locked loop
- H03C3/095—Modifications of modulator for regulating the mean frequency using a phase locked loop applying frequency modulation to the loop in front of the voltage controlled oscillator
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C5/00—Amplitude modulation and angle modulation produced simultaneously or at will by the same modulating signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B28/00—Generation of oscillations by methods not covered by groups H03B5/00 - H03B27/00, including modification of the waveform to produce sinusoidal oscillations
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
- H03C2200/0037—Functional aspects of modulators
- H03C2200/005—Modulation sensitivity
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C2200/00—Indexing scheme relating to details of modulators or modulation methods covered by H03C
- H03C2200/0037—Functional aspects of modulators
- H03C2200/0079—Measures to linearise modulation or reduce distortion of modulation characteristics
Abstract
Description
Claims (14)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/027,954 US5952895A (en) | 1998-02-23 | 1998-02-23 | Direct digital synthesis of precise, stable angle modulated RF signal |
US09/027,954 | 1998-02-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1294775A CN1294775A (zh) | 2001-05-09 |
CN1119854C true CN1119854C (zh) | 2003-08-27 |
Family
ID=21840744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN99804405A Expired - Lifetime CN1119854C (zh) | 1998-02-23 | 1999-02-23 | 精确稳定的角调制rf信号的直接数字合成 |
Country Status (10)
Country | Link |
---|---|
US (1) | US5952895A (zh) |
EP (1) | EP1057252B1 (zh) |
JP (1) | JP4283441B2 (zh) |
KR (1) | KR100626421B1 (zh) |
CN (1) | CN1119854C (zh) |
AT (1) | ATE389259T1 (zh) |
AU (1) | AU2868499A (zh) |
DE (1) | DE69938338T2 (zh) |
TW (1) | TW428372B (zh) |
WO (1) | WO1999043080A1 (zh) |
Families Citing this family (99)
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US7236754B2 (en) | 1999-08-23 | 2007-06-26 | Parkervision, Inc. | Method and system for frequency up-conversion |
US6061555A (en) | 1998-10-21 | 2000-05-09 | Parkervision, Inc. | Method and system for ensuring reception of a communications signal |
US7039372B1 (en) | 1998-10-21 | 2006-05-02 | Parkervision, Inc. | Method and system for frequency up-conversion with modulation embodiments |
US6370371B1 (en) | 1998-10-21 | 2002-04-09 | Parkervision, Inc. | Applications of universal frequency translation |
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Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH600706A5 (zh) * | 1976-09-28 | 1978-06-30 | Patelhold Patentverwertung | |
US4755774A (en) * | 1985-07-15 | 1988-07-05 | Motorola Inc. | Two-port synthesizer modulation system employing an improved reference phase modulator |
US5834985A (en) * | 1996-12-20 | 1998-11-10 | Telefonaktiebolaget L M Ericsson (Publ) | Digital continuous phase modulation for a DDS-driven phase locked loop |
-
1998
- 1998-02-23 US US09/027,954 patent/US5952895A/en not_active Expired - Lifetime
-
1999
- 1999-02-22 TW TW088102546A patent/TW428372B/zh not_active IP Right Cessation
- 1999-02-23 EP EP99909493A patent/EP1057252B1/en not_active Expired - Lifetime
- 1999-02-23 KR KR1020007009287A patent/KR100626421B1/ko active IP Right Grant
- 1999-02-23 AU AU28684/99A patent/AU2868499A/en not_active Abandoned
- 1999-02-23 AT AT99909493T patent/ATE389259T1/de not_active IP Right Cessation
- 1999-02-23 WO PCT/US1999/003285 patent/WO1999043080A1/en active IP Right Grant
- 1999-02-23 DE DE69938338T patent/DE69938338T2/de not_active Expired - Lifetime
- 1999-02-23 CN CN99804405A patent/CN1119854C/zh not_active Expired - Lifetime
- 1999-02-23 JP JP2000532912A patent/JP4283441B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2002504772A (ja) | 2002-02-12 |
WO1999043080A9 (en) | 1999-10-28 |
CN1294775A (zh) | 2001-05-09 |
EP1057252A1 (en) | 2000-12-06 |
DE69938338T2 (de) | 2009-04-02 |
EP1057252A4 (en) | 2002-09-11 |
TW428372B (en) | 2001-04-01 |
JP4283441B2 (ja) | 2009-06-24 |
WO1999043080A1 (en) | 1999-08-26 |
EP1057252B1 (en) | 2008-03-12 |
DE69938338D1 (en) | 2008-04-24 |
AU2868499A (en) | 1999-09-06 |
KR20010052181A (ko) | 2001-06-25 |
ATE389259T1 (de) | 2008-03-15 |
KR100626421B1 (ko) | 2006-09-20 |
US5952895A (en) | 1999-09-14 |
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