A modified window function for FIR filter design with an improved frequency response and its comparison with the Hamming window
B. Tech, M. Tech · 2013
In this paper a modified window function for Finite Impulse Response (FIR) filter design with an improved frequency response has been presented. The window function is generated and has been utilized to compute the frequency response of various types of FIR filter i.e. high pass, low pass, band pass and band stop types. Noticeable improvement is observed when the newly generated frequency response is compared with various other frequency responses using the other existing windows in perspective of stop band attenuation and presence of ripples, which is justified by relevant simulations and plots. In this paper the frequency response of the modified window is compared with that of Hamming window with quantized and generalized experimental results. Comparison of the modified window with the other common window functions as well as responses will be taken up in near future.