JPS589459A - 直交形位相変調器 - Google Patents

直交形位相変調器

Info

Publication number
JPS589459A
JPS589459A JP56106519A JP10651981A JPS589459A JP S589459 A JPS589459 A JP S589459A JP 56106519 A JP56106519 A JP 56106519A JP 10651981 A JP10651981 A JP 10651981A JP S589459 A JPS589459 A JP S589459A
Authority
JP
Japan
Prior art keywords
carrier wave
sine
signal
circuit
phase modulator
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
Application number
JP56106519A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6331139B2 (de
Inventor
Masaaki Kato
正昭 加藤
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP56106519A priority Critical patent/JPS589459A/ja
Publication of JPS589459A publication Critical patent/JPS589459A/ja
Publication of JPS6331139B2 publication Critical patent/JPS6331139B2/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
    • H04L27/20—Modulator circuits; Transmitter circuits
    • H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
    • H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
    • H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
    • H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
    • H04L27/2071—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the data are represented by the carrier phase, e.g. systems with differential coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
JP56106519A 1981-07-08 1981-07-08 直交形位相変調器 Granted JPS589459A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56106519A JPS589459A (ja) 1981-07-08 1981-07-08 直交形位相変調器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56106519A JPS589459A (ja) 1981-07-08 1981-07-08 直交形位相変調器

Publications (2)

Publication Number Publication Date
JPS589459A true JPS589459A (ja) 1983-01-19
JPS6331139B2 JPS6331139B2 (de) 1988-06-22

Family

ID=14435648

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56106519A Granted JPS589459A (ja) 1981-07-08 1981-07-08 直交形位相変調器

Country Status (1)

Country Link
JP (1) JPS589459A (de)

Also Published As

Publication number Publication date
JPS6331139B2 (de) 1988-06-22

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