Introduction - If you have any usage issues, please Google them yourself
Digital filter is the voice and image processing, pattern recognition, radar signal processing, spectral analysis applications, such as the handling of one of the basic components that can meet the filter amplitude and phase characteristics of the stringent requirements to avoid analog filters can not be overcome by voltage drift, temperature drift and noise and so on. Finite Impulse Response (FIR) filter in the design of arbitrary amplitude-frequency characteristics at the same time ensure the strict linear phase characteristics.