Digital Filter Toolbox

A custom-developed digital filter toolbox designed with interface and functionality mirroring MATLAB's FDATOOL toolbox. This toolbox features an intuitive GUI and robust capabilities for configuring diverse FIR (Finite Impulse Response) and IIR (Infinite Impulse Response) digital filters. Users can select from multiple filter types (including Butterworth, Chebyshev, and elliptic designs) and fine-tune parameters through programmable interfaces. The implementation includes core algorithms for filter coefficient calculation using windowing methods for FIR and bilinear transformation for IIR designs. Additionally, the toolbox provides visualization features displaying frequency response curves, phase characteristics, and pole-zero plots through MATLAB's plotting functions. Suitable for both beginners and professionals, it streamlines digital filter design and debugging workflows with real-time parameter adjustment capabilities and export functions for generated filter coefficients.