CN1154011A - 采用costas环部分改进发射频率的稳定度的装置与方法 - Google Patents
采用costas环部分改进发射频率的稳定度的装置与方法 Download PDFInfo
- Publication number
- CN1154011A CN1154011A CN95121184A CN95121184A CN1154011A CN 1154011 A CN1154011 A CN 1154011A CN 95121184 A CN95121184 A CN 95121184A CN 95121184 A CN95121184 A CN 95121184A CN 1154011 A CN1154011 A CN 1154011A
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- CN
- China
- Prior art keywords
- frequency
- converter
- signal
- input
- output
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004891 communication Methods 0.000 title claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims 1
- 238000012545 processing Methods 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 description 10
- 238000001914 filtration Methods 0.000 description 5
- 238000005070 sampling Methods 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000000284 extract Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 101100369915 Drosophila melanogaster stas gene Proteins 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
-
- 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
- H04L27/22—Demodulator circuits; Receiver circuits
- H04L27/227—Demodulator circuits; Receiver circuits using coherent demodulation
- H04L27/2271—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals
- H04L27/2273—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses only the demodulated signals associated with quadrature demodulation, e.g. Costas loop
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
- H03L7/00—Automatic control of frequency or phase; Synchronisation
- H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
- H03L7/08—Details of the phase-locked loop
- H03L7/085—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal
- H03L7/087—Details of the phase-locked loop concerning mainly the frequency- or phase-detection arrangement including the filtering or amplification of its output signal using at least two phase detectors or a frequency and phase detector in the loop
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0053—Closed loops
- H04L2027/0057—Closed loops quadrature phase
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0044—Control loops for carrier regulation
- H04L2027/0063—Elements of loops
- H04L2027/0065—Frequency error detectors
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Superheterodyne Receivers (AREA)
Abstract
Description
Claims (3)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR39869/1994 | 1994-12-30 | ||
KR1019940039869A KR0138215B1 (ko) | 1994-12-30 | 1994-12-30 | 반 2중 전송방식의 통신 시스템에서 코스타스 루프부를 이용한 송신 주파수의 안정도를 높이는 장치 및 방법 |
KR39869/94 | 1994-12-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1154011A true CN1154011A (zh) | 1997-07-09 |
CN1066871C CN1066871C (zh) | 2001-06-06 |
Family
ID=19405850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN95121184A Expired - Fee Related CN1066871C (zh) | 1994-12-30 | 1995-12-29 | 采用考斯塔斯环部分改进发射频率的稳定度的装置与方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US5828709A (zh) |
KR (1) | KR0138215B1 (zh) |
CN (1) | CN1066871C (zh) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6553209B1 (en) | 2000-05-16 | 2003-04-22 | California Amplifier, Inc. | Upstream/downstream local oscillator methods and structures for wireless communication system transceivers |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4816769A (en) * | 1985-06-21 | 1989-03-28 | Ma John Y | BPSK demodulator and FM receiver for digital data pagers |
DE3879200D1 (de) * | 1988-08-30 | 1993-04-15 | Siemens Ag | Verfahren und schaltungsanordnung fuer eine digitale regelung der frequenz und/oder der phase von abtasttaktimpulsen. |
CA1325251C (en) * | 1988-09-02 | 1993-12-14 | Shigeki Saito | Frequency synthesizer |
JPH0456443A (ja) * | 1990-06-26 | 1992-02-24 | Sony Corp | 局部発振装置 |
US5233626A (en) * | 1992-05-11 | 1993-08-03 | Space Systems/Loral Inc. | Repeater diversity spread spectrum communication system |
US5282227A (en) * | 1992-05-21 | 1994-01-25 | The Titan Corporation | Communication signal detection and acquisition |
CA2108614C (en) * | 1992-10-19 | 1998-01-20 | Yoichiro Minami | Receiver capable of reducing power consumption in a pll circuit |
JPH06237277A (ja) * | 1993-02-09 | 1994-08-23 | Nec Corp | Psk搬送波信号再生装置 |
JPH084235B2 (ja) * | 1993-03-31 | 1996-01-17 | 日本電気株式会社 | 周波数制御装置 |
KR960007657B1 (ko) * | 1993-12-29 | 1996-06-08 | 현대전자산업 주식회사 | 엘-밴드 위상 편이키잉 변조방식을 이용한 위성통신에서의 수신기 |
US5454009A (en) * | 1994-01-13 | 1995-09-26 | Scientific-Atlanta, Inc. | Method and apparatus for providing energy dispersal using frequency diversity in a satellite communications system |
-
1994
- 1994-12-30 KR KR1019940039869A patent/KR0138215B1/ko not_active IP Right Cessation
-
1995
- 1995-09-08 US US08/525,092 patent/US5828709A/en not_active Expired - Fee Related
- 1995-12-29 CN CN95121184A patent/CN1066871C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR960027467A (ko) | 1996-07-22 |
CN1066871C (zh) | 2001-06-06 |
KR0138215B1 (ko) | 1998-07-01 |
US5828709A (en) | 1998-10-27 |
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ASS | Succession or assignment of patent right |
Owner name: CO., LTD. HYUNDAI INFORMATION TONG Free format text: FORMER OWNER: HYUNDAI ELECTRONICS INDUSTRIES CO., LTD. Effective date: 20040204 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20040204 Address after: South Korea Gyeonggi Do Patentee after: Hyundai Information Tong Co., Ltd. Address before: South Korea Gyeonggi Do Patentee before: Hyundai Electronics Industries Co., Ltd. |
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Owner name: UT STARCOM KOREA LTD. Free format text: FORMER OWNER: CO., LTD. HYUNDAI INFORMATION TONG Effective date: 20040604 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20040604 Address after: Gyeonggi Do, South Korea Patentee after: Utstarcom Korea Ltd. Address before: Gyeonggi Do, South Korea Patentee before: Hyundai Information Tong Co., Ltd. |
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C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |