The Performance Evaluation of Window Functions and Application to FIR Filter Design
نویسنده
چکیده
The paper is based upon the performance of various w indows in designing FIR Filter. The cosine hyperbolic w indow has been used to design a better FIR Filter in terms of ripple ratio, side-lobe roll off ratio and main-lobe w idth w ith its advantages of no power series expansion in frequency domain hence need less hardware. The spectral characteristic of cosh window is compared with other windows like Kaiser Window, hamming w indow and their combinations. A modif ication is also introduced in cosh window to perform better in terms of ripple ratio as compared to Kaiser as well as cosh w indow . KeywordsCosh window, FIR filter design, Hamming w indow, Kaiser Window, Main-lobe w idth, Side-lobe roll-off ratio, Ultra spherical window, window function. —————————— ——————————
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