Design of real time FIR filter for removal of noise in ECG

ECG 신호의 잡음 제거를 위한 실시간 FIR 필터의 설계

Base-line wandering and 60Hz noise in ECG are removed by linear phase FIR filter. The important problem in FIR filtering is to reduce the number of impulse response coefficients. It can be reduced by symmetrical impulse response. The ripple is improved by window function .omega.(n). And the determination of filter accuracy is proposed by PRD(percent rms difference) algorithm.