JPS6432577A - Ghost canceller - Google Patents
Ghost cancellerInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1987
- 1987-04-07 JP JP62085390A patent/JPS6432577A/en active Pending
Cited By (3)
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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