Abnormal signal detection and cancellation by using adaptive digital filter

Minoru Matsui, Masafumi Hagiwara, Masao Nakagawa, Yasuhito Hayashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The detection of a noise component added in a tranasmission line and a signal component buried in a noise have become important problems. An adaptive predictor using an adaptive digital filter (ADF) is effective in cancelling the noise component in the input signal. A novel system is proposed to cancel an abnormal signal in an input signal by using an adaptive predictor with a decision feedback. First, the cause of the occurrence of echo in the conventional predictor is shown. Next, the behavior of the new system is explained. Then a more accurate canceller of the abnormal signal with the two cascade-connected ADFs is shown.

Original languageEnglish
Pages (from-to)66-75
Number of pages10
JournalElectronics and Communications in Japan, Part III: Fundamental Electronic Science (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume72
Issue number1
Publication statusPublished - 1989 Jan

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Signal detection
Adaptive filters
Digital filters
Feedback

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

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