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高光植 경북대학교 공과대학 1984 工大硏究誌 Vol.13 No.-
Since a median filter for the restoration of signals degraded by random impulsive noise introduces some distortions on filtered signals, a simple low distortion median filter (LDMF) is proposed. It is shown that the proposed LDMF is quite effective for impulse noise elimination and also for reducing the distortion in mean square error sense, although being comparable in the processing time. In this paper, the LDMF is compared with the iterative median filter.
고광식,박용완,김영모,이건일 경북대학교 공과대학 1985 工大硏究誌 Vol.14 No.-
The purpose of this paper is to advocate a simple approach for realizing a real time linear-phased multiple notch filter(MNF) using a modified concept of the MFIR(multiplicative finite impulse response) filter. It is shown that the proposed MNF is quite effective for eliminating low frequencies and their harmonics, and also for offering an economical solution because it requires no multipliers and uses limited adders and memories. In this paper, we will describe the theoretical MNF approach, the hardware, the software and the noise analysis of the proposed MNF.