Operating systems

An Improved Window Based on Cosine Hyperbolic Function

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Executive Summary

A new simple form window with the application of FIR filter design based on the exponential function is proposed in this paper. An improved window having a closed simple formula which is symmetric ameliorates ripple ratio in comparison with cosine hyperbolic window. The proposed window has been derived in the same way as Kaiser Window, but its advantages have no power series expansion in its time domain representation. Simulation results show that proposed window provides better ripple ratio characteristics which are so important for some applications.

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