The Frequency Spectrum and the Noisy Compression Degree of the Digital Filter
Jun Peng · Journal of The Pla Institute of Surveying and Mapping · 2001
This paper derives the frequency spectrum of digital filters from the Fourier theory, and derives the noise compression degree of digital filters from the theory of stochastic process. Through analyzing the frequency spectrum and the noise compression degree of the binomial efficient digital filter and the multinomial efficient digital filter, we find that the binomial efficient digital filter has a greater compression action to noise and at the same time can keep the property of the concave and convex of the signal. It is a better digital filter than the multinomial efficient digital filter.