NEW METHOD OF SYNTHETISING LINEAR DIGITAL FILTERS BASED ON CONVOLUTION INTEGRAL

A new procedure for realizing the cascade and parallel forms of digital filters is presented. The method is based on using a Taylor expansion of the input signal over each sampling interval. The results reported are largely concerned with the simplest expansion, namely that the input remains constant during the sampling period. The method is shown to be applicable to lowpass and bandpass filters and, with a certain modification also to highpass …