JPH0229263B2 - - Google Patents
Info
- Publication number
- JPH0229263B2 JPH0229263B2 JP59052744A JP5274484A JPH0229263B2 JP H0229263 B2 JPH0229263 B2 JP H0229263B2 JP 59052744 A JP59052744 A JP 59052744A JP 5274484 A JP5274484 A JP 5274484A JP H0229263 B2 JPH0229263 B2 JP H0229263B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase detector
- input terminal
- double
- phase
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 41
- 230000001360 synchronised effect Effects 0.000 claims description 24
- 230000008929 regeneration Effects 0.000 claims description 23
- 238000011069 regeneration method Methods 0.000 claims description 23
- 230000010355 oscillation Effects 0.000 claims description 8
- 230000001427 coherent effect Effects 0.000 claims description 5
- 230000010363 phase shift Effects 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000011084 recovery Methods 0.000 description 11
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 239000012050 conventional carrier Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
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
- H04L27/22—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
- 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
- H04L2027/0046—Open loops
- H04L2027/0048—Frequency multiplication
-
- 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
- H04L2027/0067—Phase error detectors
-
- 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
- H04L2027/0071—Control of loops
- H04L2027/0073—Detection of synchronisation state
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59052744A JPS60196049A (ja) | 1984-03-19 | 1984-03-19 | 搬送波再生回路 |
EP19850102752 EP0154963B1 (en) | 1984-03-12 | 1985-03-11 | Quarternary differential psk demodulator |
DE8585102752T DE3585332D1 (de) | 1984-03-12 | 1985-03-11 | Demodulator fuer vierphasendifferenzmodulierte signale. |
US06/757,847 US4614910A (en) | 1984-03-12 | 1985-07-22 | Quarternary differential PSK demodulator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59052744A JPS60196049A (ja) | 1984-03-19 | 1984-03-19 | 搬送波再生回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60196049A JPS60196049A (ja) | 1985-10-04 |
JPH0229263B2 true JPH0229263B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1990-06-28 |
Family
ID=12923427
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59052744A Granted JPS60196049A (ja) | 1984-03-12 | 1984-03-19 | 搬送波再生回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60196049A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1984
- 1984-03-19 JP JP59052744A patent/JPS60196049A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60196049A (ja) | 1985-10-04 |