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JPS5761347A - Removing circuit of nonlinear type distortion - Google Patents

Removing circuit of nonlinear type distortion

Info

Publication number
JPS5761347A
JPS5761347A JP13629080A JP13629080A JPS5761347A JP S5761347 A JPS5761347 A JP S5761347A JP 13629080 A JP13629080 A JP 13629080A JP 13629080 A JP13629080 A JP 13629080A JP S5761347 A JPS5761347 A JP S5761347A
Authority
JP
Japan
Prior art keywords
circuit
nonlinear type
type distortion
discriminator
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
Application number
JP13629080A
Other languages
Japanese (ja)
Other versions
JPS6352820B2 (en
Inventor
Junji Namiki
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP13629080A priority Critical patent/JPS5761347A/en
Publication of JPS5761347A publication Critical patent/JPS5761347A/en
Publication of JPS6352820B2 publication Critical patent/JPS6352820B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03012—Arrangements for removing intersymbol interference operating in the time domain
    • H04L25/03019—Arrangements for removing intersymbol interference operating in the time domain adaptive, i.e. capable of adjustment during data reception

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Filters That Use Time-Delay Elements (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

PURPOSE:To cancel the nonlinear type distortion of digital modulation input by nonlinear type characteristic of correction circuit of nonlinear type distortion each other, by increasing and decreasing the complex factor of a variable complex factor circuit. CONSTITUTION:The output of a nonlinear type distortion correction circuit 1 which consists of a cube circuit 10 functioning as an odd function input characteristic circuit, a complex multiplier 14 functioning as a variable complex factor circuit and an adder 13 is supplied to a discriminator 2 and an error detector 3 which estimate the correct value from a distorted digital input signal. The output of the error detector 3 and the discriminator 2 is supplied to a block 4. The block 4 increases and decreases the complex factor of a multiplier 14 according to the output of the detector 3 and the estimated value of the discriminator 2 and corrects nonlinear type distortion of the digital modulation input by using the nonlinear type characteristic of the circuit 1.
JP13629080A 1980-09-30 1980-09-30 Removing circuit of nonlinear type distortion Granted JPS5761347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13629080A JPS5761347A (en) 1980-09-30 1980-09-30 Removing circuit of nonlinear type distortion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13629080A JPS5761347A (en) 1980-09-30 1980-09-30 Removing circuit of nonlinear type distortion

Publications (2)

Publication Number Publication Date
JPS5761347A true JPS5761347A (en) 1982-04-13
JPS6352820B2 JPS6352820B2 (en) 1988-10-20

Family

ID=15171708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13629080A Granted JPS5761347A (en) 1980-09-30 1980-09-30 Removing circuit of nonlinear type distortion

Country Status (1)

Country Link
JP (1) JPS5761347A (en)

Also Published As

Publication number Publication date
JPS6352820B2 (en) 1988-10-20

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