JPH0363265B2 - - Google Patents

Info

Publication number
JPH0363265B2
JPH0363265B2 JP56204120A JP20412081A JPH0363265B2 JP H0363265 B2 JPH0363265 B2 JP H0363265B2 JP 56204120 A JP56204120 A JP 56204120A JP 20412081 A JP20412081 A JP 20412081A JP H0363265 B2 JPH0363265 B2 JP H0363265B2
Authority
JP
Japan
Prior art keywords
output
memory
circuit
amplifier
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
JP56204120A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58105658A (ja
Inventor
Yukitsuna Furuya
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
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP56204120A priority Critical patent/JPS58105658A/ja
Publication of JPS58105658A publication Critical patent/JPS58105658A/ja
Publication of JPH0363265B2 publication Critical patent/JPH0363265B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/62—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for providing a predistortion of the signal in the transmitter and corresponding correction in the receiver, e.g. for improving the signal/noise ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP56204120A 1981-12-17 1981-12-17 適応型変調装置 Granted JPS58105658A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56204120A JPS58105658A (ja) 1981-12-17 1981-12-17 適応型変調装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56204120A JPS58105658A (ja) 1981-12-17 1981-12-17 適応型変調装置

Publications (2)

Publication Number Publication Date
JPS58105658A JPS58105658A (ja) 1983-06-23
JPH0363265B2 true JPH0363265B2 (enrdf_load_stackoverflow) 1991-09-30

Family

ID=16485144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56204120A Granted JPS58105658A (ja) 1981-12-17 1981-12-17 適応型変調装置

Country Status (1)

Country Link
JP (1) JPS58105658A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61134190A (ja) * 1984-12-05 1986-06-21 Matsushita Electric Ind Co Ltd 映像信号記録再生装置
JPH02137553A (ja) * 1988-11-18 1990-05-25 Fujitsu General Ltd ディジタル変調方式
JP2723607B2 (ja) * 1989-04-28 1998-03-09 松下電器産業株式会社 送信装置
EP0465709A1 (de) * 1990-07-12 1992-01-15 Thomcast Ag Verfahren zur Kompensation von Nichtlinearitäten einer Verstärkerschaltung
JPH04100355A (ja) * 1990-08-17 1992-04-02 Miyoshi Denshi Kk 変調回路
JP3421452B2 (ja) 1994-12-07 2003-06-30 富士通株式会社 非線形歪補償装置

Also Published As

Publication number Publication date
JPS58105658A (ja) 1983-06-23

Similar Documents

Publication Publication Date Title
US6418173B1 (en) Transmission Apparatus
US4700151A (en) Modulation system capable of improving a transmission system
US5404378A (en) Distortion compensating circuit
US4291277A (en) Adaptive predistortion technique for linearizing a power amplifier for digital data systems
US7020447B2 (en) Method and apparatus for compensating for distortion in radio apparatus
JP3644965B2 (ja) 効率的な線形電力増幅
US6141390A (en) Predistortion in a linear transmitter using orthogonal kernels
US5867065A (en) Frequency selective predistortion in a linear transmitter
HK36896A (en) A method of compensating for non-linearities in an end amplifier incorporated in a radio transmitter
JP4168259B2 (ja) 非線形歪補償回路および非線形歪補償方法ならびに送信回路
JPH0580856B2 (enrdf_load_stackoverflow)
EP1170859B1 (en) Distortion compensation method and apparatus
JPH0773243B2 (ja) 送信機
JPH0363265B2 (enrdf_load_stackoverflow)
GB2352103A (en) Calculating the amplitude of a signal from I and Q components for use in a transmitter gain control or predistorter
JPS63121326A (ja) 送信機
JP3187251B2 (ja) 歪補償回路
JP2007049621A (ja) プリディストーション増幅装置
JPS61220546A (ja) 変調装置
KR100251385B1 (ko) 전력증폭기의 선형화장치 및 방법
JPH08256020A (ja) 線形補償回路
JP2000286916A (ja) 復調装置
JP4160959B2 (ja) プリディストーション増幅装置
JPH03270306A (ja) カルテシアン帰還型非線形歪補償器
KR19990031423A (ko) 디지탈 통신시스템의 전력증폭기 선형화장치 및 방법