JPH059979B2 - - Google Patents

Info

Publication number
JPH059979B2
JPH059979B2 JP58115561A JP11556183A JPH059979B2 JP H059979 B2 JPH059979 B2 JP H059979B2 JP 58115561 A JP58115561 A JP 58115561A JP 11556183 A JP11556183 A JP 11556183A JP H059979 B2 JPH059979 B2 JP H059979B2
Authority
JP
Japan
Prior art keywords
wave
qam
frequency
carrier wave
signal
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
JP58115561A
Other languages
English (en)
Japanese (ja)
Other versions
JPS607252A (ja
Inventor
Susumu Sasaki
Hiroyuki Homitsu
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP58115561A priority Critical patent/JPS607252A/ja
Publication of JPS607252A publication Critical patent/JPS607252A/ja
Publication of JPH059979B2 publication Critical patent/JPH059979B2/ja
Granted legal-status Critical Current

Links

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
    • H04L27/2275—Demodulator circuits; Receiver circuits using coherent demodulation wherein the carrier recovery circuit uses the received modulated signals
    • 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
    • H04L27/2007—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained
    • H04L27/2014—Modulator circuits; Transmitter circuits for continuous phase modulation in which the phase change within each symbol period is constrained in which the phase changes in a piecewise linear manner during each symbol period, e.g. minimum shift keying, fast frequency shift keying

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP58115561A 1983-06-27 1983-06-27 通信方式 Granted JPS607252A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58115561A JPS607252A (ja) 1983-06-27 1983-06-27 通信方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58115561A JPS607252A (ja) 1983-06-27 1983-06-27 通信方式

Publications (2)

Publication Number Publication Date
JPS607252A JPS607252A (ja) 1985-01-16
JPH059979B2 true JPH059979B2 (fr) 1993-02-08

Family

ID=14665586

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58115561A Granted JPS607252A (ja) 1983-06-27 1983-06-27 通信方式

Country Status (1)

Country Link
JP (1) JPS607252A (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5139810B2 (fr) * 1971-11-04 1976-10-29

Also Published As

Publication number Publication date
JPS607252A (ja) 1985-01-16

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