JPS6432577A - Ghost canceller - Google Patents

Ghost canceller

Info

Publication number
JPS6432577A
JPS6432577A JP62085390A JP8539087A JPS6432577A JP S6432577 A JPS6432577 A JP S6432577A JP 62085390 A JP62085390 A JP 62085390A JP 8539087 A JP8539087 A JP 8539087A JP S6432577 A JPS6432577 A JP S6432577A
Authority
JP
Japan
Prior art keywords
filter
tdl
optimum
coefficient
transfer function
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.)
Pending
Application number
JP62085390A
Other languages
Japanese (ja)
Inventor
Daisaku Yamane
Hiroshi Ochi
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.)
Japan Radio Co Ltd
Original Assignee
Japan Radio 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 Japan Radio Co Ltd filed Critical Japan Radio Co Ltd
Priority to JP62085390A priority Critical patent/JPS6432577A/en
Publication of JPS6432577A publication Critical patent/JPS6432577A/en
Pending legal-status Critical Current

Links

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  • Picture Signal Circuits (AREA)

Abstract

PURPOSE:To ensure the stable and optimum filter operation by adopting an IIR type filter for a system function of a ghost canceller. CONSTITUTION:Prior to the start of TV operation, a switch 5 is thrown to the position of a terminal 51 during the training period to set the filter coefficient of a ghost canceller intially. Since a training signal r(k) from a generator 3 is retarded sequentially by a TDL 6, the transfer coefficient of the TDL 6 is identified to a ghost generation system G(jw)10 by varying properly the coefficient of the TDL for each sample of an input signal x(k) from an input terminal 1. Even when the transfer function G(jw) of the system 10 being an optimum transfer function of the adaptive filter 11 is unstable, the transfer function F(jw) of the adaptive filter 11 as a solution obtained by using the improved LMS method is optimum in a stable range. Then the switch 5 is thrown and a normal broadcast signal is outputted from the output terminal 2.
JP62085390A 1987-04-07 1987-04-07 Ghost canceller Pending JPS6432577A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62085390A JPS6432577A (en) 1987-04-07 1987-04-07 Ghost canceller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62085390A JPS6432577A (en) 1987-04-07 1987-04-07 Ghost canceller

Publications (1)

Publication Number Publication Date
JPS6432577A true JPS6432577A (en) 1989-02-02

Family

ID=13857427

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62085390A Pending JPS6432577A (en) 1987-04-07 1987-04-07 Ghost canceller

Country Status (1)

Country Link
JP (1) JPS6432577A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432968A2 (en) * 1989-12-12 1991-06-19 Matsushita Electric Industrial Co., Ltd. Ghost canceller
JPH0723255A (en) * 1990-06-25 1995-01-24 At & T Corp Television signal processor and method thereof
JP2021057901A (en) * 2019-09-30 2021-04-08 ソニー株式会社 Blind legacy video artifact reduction

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0432968A2 (en) * 1989-12-12 1991-06-19 Matsushita Electric Industrial Co., Ltd. Ghost canceller
JPH0723255A (en) * 1990-06-25 1995-01-24 At & T Corp Television signal processor and method thereof
JP2021057901A (en) * 2019-09-30 2021-04-08 ソニー株式会社 Blind legacy video artifact reduction

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