FIR Filter Design

Finite impulse response or FIR filters have the advantage of always being stable, even for very high orders, and can be designed to introduce no phase distortion. In this series of six lessons you will learn about the conditions for an FIR filter to introduce no phase distortion and three different methods for FIR filter design. You will learn about the intuitive, able-to-be-performed-with-pencil-and-paper window design method. You will also learn about the minimax optimal Parks-McClellan computer-based filter design method. The third method uses the technique of frequency sampling to obtain designs with arbitrary magnitude and phase response.