Design of a Low-Pass Digital Filter

Design a low-pass digital filter that meets the following design specifications: passband cutoff frequency of 0.2π with 1 dB ripple, and stopband cutoff frequency of 0.3π with 15 dB attenuation. This requires developing designs using Butterworth, Chebyshev Type I, Chebyshev Type II, and elliptic filter prototypes, comparing their filter orders, actual stopband attenuation, and analyzing the experimental results. Key implementation considerations include filter type trade-offs, parameter selection methods, stability, computational complexity, and performance evaluations.

Designing FIR Digital Filters Using Various Window Functions

Designing FIR digital filters using various window functions. Implementation of linear phase FIR low-pass filters using rectangular window and Hamming window methods. Specifications include passband cutoff frequency and unit impulse response h(n) length of N=21. The implementation involves plotting h(n) and its magnitude-frequency response characteristics, with code descriptions for filter design parameters and frequency response visualization.