Study on Design and Implementation of the Low Pass Digital Filter for Biological Signals by a Microprocessor

마이크로프로세서에 의한 생체신호용 저역 디지털 필터의 설계 및 구현에 관한 연구

This study is for the contents of development to the hardware system and software driving algorithm to implement the frequency band of about 7KHz los pass digital filter which has the cut-off frequency of 392Hz by interfacing of a microprocessor with its peripheral analog-to-digital converter chip and digital-to-analog converter chip. The simplicity of digital filter design without difficulty and the implementation of programmed digital filter can be realized by providing the interfacing method to implement the law pass digital filter for the biological signals and the realization method of computer algorithm by a microprocessor.