JPH0229262B2 - - Google Patents
Info
- Publication number
- JPH0229262B2 JPH0229262B2 JP59046880A JP4688084A JPH0229262B2 JP H0229262 B2 JPH0229262 B2 JP H0229262B2 JP 59046880 A JP59046880 A JP 59046880A JP 4688084 A JP4688084 A JP 4688084A JP H0229262 B2 JPH0229262 B2 JP H0229262B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- phase detector
- phase
- input terminal
- double
- 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 39
- 230000001360 synchronised effect Effects 0.000 claims description 25
- 230000008929 regeneration Effects 0.000 claims description 21
- 238000011069 regeneration method Methods 0.000 claims description 21
- 230000010355 oscillation Effects 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 claims description 3
- 230000001172 regenerating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 12
- 238000011084 recovery Methods 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001427 coherent effect Effects 0.000 description 2
- 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
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 |
---|---|---|---|
JP59046880A JPS60190060A (ja) | 1984-03-12 | 1984-03-12 | 搬送波再生回路 |
DE8585102752T DE3585332D1 (de) | 1984-03-12 | 1985-03-11 | Demodulator fuer vierphasendifferenzmodulierte signale. |
EP19850102752 EP0154963B1 (fr) | 1984-03-12 | 1985-03-11 | Démodulateur pour signaux à modulation différentielle de phase quaternaire |
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 |
---|---|---|---|
JP59046880A JPS60190060A (ja) | 1984-03-12 | 1984-03-12 | 搬送波再生回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60190060A JPS60190060A (ja) | 1985-09-27 |
JPH0229262B2 true JPH0229262B2 (fr) | 1990-06-28 |
Family
ID=12759667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59046880A Granted JPS60190060A (ja) | 1984-03-12 | 1984-03-12 | 搬送波再生回路 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60190060A (fr) |
-
1984
- 1984-03-12 JP JP59046880A patent/JPS60190060A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60190060A (ja) | 1985-09-27 |
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