Quantization Effects in Digital MTI Filters. Volume II.
Robert J. Polge, B. K. Bhagavan, L. Callas · Defense Technical Information Center (DTIC) · 1975
The purpose of this report is to design and select MTI filters which will satisfy given specifications with tolerable quantization effects and a minimum amount of hardware. Programs are developed to design low-pass, high-pass, band-pass and band-reject filters of types Butterworth, Chebyshev I, Chebyshev 2 and elliptic. The transfer function is factored into second-order and first-order sections and five realizations are considered: direct, canonical, modified canonical, coupled canonical and Mick's. Binary fixed-point two's complement arithmetic is assumed. A simulation program is developed for a typical nonrecursive filter. Programs are developed to design, evaluate, and select high-pass and band-pass MTI recursive filters. It is shown that Chebyshev I, Mick's realization, is the recommended choice for a typical MTI filter. (Author)