Real-Time Digital Signal Processing - Chapter 5: Design and Implementation of FIR Filters
Real-Time Digital Signal Processing - Chapter 5: Design and Implementation of FIR Filters
A filter is a system that is designed to alter the spectral content of input signals in a specified manner. Common filtering objectives include improving signal quality, extracting information from signals, or separating signal components that have been previously combined. A digital filter is a mathematical algorithm implemented in hardware, firmware, and/or software that operates on a digital input signal to produce a digital output signal for achieving filtering objectives.