Window functions have been extensively used for the design of SAW filters. The classical truncated cosine series functions, such as the Hamming and Blackmann functions, are only a few of an infinite set of such functions. The derivation of this set of functions from orthonormal basis sets and the criteria for obtaining the constant coefficients of the functions are presented. These functions are very useful because of the closed-form expressions and their easily recognizable Fourier transform. Another approach to the design of Gaussian shaped filters having a desired sidelobe level using a 40 term cosine series will be presented as well. This approach is again non-iterative and a near equi-ripple sidelobe level filter could be achieved. A deconvolution technique will also be presented. this has the advantage of being non-iterative, simple and fast. This design method produces results comparable to the Dolph-Chebyshev technique.
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Malocha, Donald C.
Doctor of Philosophy (Ph.D.)
College of Engineering
Electrical Engineering and Communication
Length of Campus-only Access
Doctoral Dissertation (Open Access)
Dissertations, Academic -- Engineering -- FOFT; Engineering -- Dissertations, Academic -- FOFT
Bishop, Carlton Delos, "Finite impulse response filter design using cosine series functions" (1988). Retrospective Theses and Dissertations. 4261.