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International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 12    
Website: http://www.ijser.org
scirp IJSER >> Volume 2, Issue 12, December 2011
The Performance Evaluation of Window Functions and Application to FIR Filter Design
Full Text(PDF, 3000)  PP.  
Mridula Malhotra
Cosh window, FIR filter design, Hamming window, Kaiser Window, Main-lobe width, Side-lobe roll-off ratio, Ultra spherical window, window function
The paper is based upon the performance of various windows in designing FIR Filter. The cosine hyperbolic window has been used to design a better FIR Filter in terms of ripple ratio, side-lobe roll off ratio and main-lobe width with 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 window and their combinations. A modification is also introduced in cosh window to perform better in terms of ripple ratio as compared to Kaiser as well as cosh window.
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