KR960016406A - Improved LMS Method - Google Patents

Improved LMS Method Download PDF

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Publication number
KR960016406A
KR960016406A KR1019940028278A KR19940028278A KR960016406A KR 960016406 A KR960016406 A KR 960016406A KR 1019940028278 A KR1019940028278 A KR 1019940028278A KR 19940028278 A KR19940028278 A KR 19940028278A KR 960016406 A KR960016406 A KR 960016406A
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KR
South Korea
Prior art keywords
ghost
location
sunghost
improved
reference signal
Prior art date
Application number
KR1019940028278A
Other languages
Korean (ko)
Other versions
KR0134252B1 (en
Inventor
서창원
Original Assignee
배순훈
대우전자 주식회사
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.)
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Publication date
Application filed by 배순훈, 대우전자 주식회사 filed Critical 배순훈
Priority to KR1019940028278A priority Critical patent/KR0134252B1/en
Publication of KR960016406A publication Critical patent/KR960016406A/en
Application granted granted Critical
Publication of KR0134252B1 publication Critical patent/KR0134252B1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/21—Circuitry for suppressing or minimising disturbance, e.g. moiré or halo
    • H04N5/211—Ghost signal cancellation
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H2017/0072—Theoretical filter design
    • H03H2017/0081—Theoretical filter design of FIR filters
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H17/00—Networks using digital techniques
    • H03H2017/0072—Theoretical filter design
    • H03H2017/009—Theoretical filter design of IIR filters

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)

Abstract

본 발명은 개선된 엘엠에스 방법에 관한 것으로, 제거가능한 선고스트의 시작위치와 가장 멀리 떨어져 있는 롱고스트의 끝위치를 알아내어 선고스트와 롱고스트가 존재하는 범위 내에서만 엘엠에스를 수행하므로써, 보다 빠른 속도로 필터계수를 계산할 수 있도록 개선한 것이다.The present invention relates to an improved method of LS, by finding the end position of the longest ghost that is farthest from the start of the removable sunghost, and performing the SMS only within the range where the sunghost and the long ghost exist. It is improved to calculate the filter coefficient at high speed.

Description

개선된 엘엠에스(LMS) 방법Improved LMS Method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 제1도의 필터부와 필터계수 계산부의 상세한 블럭구성도,2 is a detailed block diagram of the filter unit and filter coefficient calculation unit of FIG.

제3도는 본 발명에 따라 개선된 엘엠에스방법의 동작 과정을 도시한 플로우챠트.3 is a flowchart showing the operation of the improved method of the SMS according to the present invention.

Claims (1)

고스트를 제거하기 위한 필터계수를 계산하기 위해 샘플링된 데이타를 이용하여 상기 필터계수를 반복적으로 갱신하는 엘엠에스 방법에 있어서, 고스트제거 기준신호의 시작위치와 끝위치를 체크한 다음 제거가능한 선고스트의 위치를 찾아내는 단계와; 상기 고스트제거 기준신호의 끝위치로부터 최외곽에 존재하는 롱고스트의 위치를 검출하는 단계와; 상기 선고스트의 위치로부터 상기 최외곽에 존재하는 롱고스트의 위치까지 엘엠에스를 수행하는 단계로 이루어진 개선된 엘엠에스(LMS) 방법.In the LS method of repeatedly updating the filter coefficients using sampled data to calculate a filter coefficient for removing ghosts, the start and end positions of the ghost elimination reference signal are checked and then the Finding a location; Detecting a position of a long ghost existing at the outermost position from an end position of the ghost removal reference signal; And performing LMS from the location of the sunghost to the location of the longest ghost that is at the outermost part. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940028278A 1994-10-31 1994-10-31 Improved least mean square method KR0134252B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940028278A KR0134252B1 (en) 1994-10-31 1994-10-31 Improved least mean square method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940028278A KR0134252B1 (en) 1994-10-31 1994-10-31 Improved least mean square method

Publications (2)

Publication Number Publication Date
KR960016406A true KR960016406A (en) 1996-05-22
KR0134252B1 KR0134252B1 (en) 1998-04-23

Family

ID=19396613

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940028278A KR0134252B1 (en) 1994-10-31 1994-10-31 Improved least mean square method

Country Status (1)

Country Link
KR (1) KR0134252B1 (en)

Also Published As

Publication number Publication date
KR0134252B1 (en) 1998-04-23

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