Signal Toolkit - impz

Function File: [x, t] = impz (b)

Function File: [x, t] = impz (b, a)

Function File: [x, t] = impz (b, a, n)

Function File: [x, t] = impz (b, a, n, fs)

Function File: impz (…)

Generate impulse-response characteristics of the filter. The filter coefficients correspond to the the z-plane rational function with numerator b and denominator a. If a is not specified, it defaults to 1. If n is not specified, or specified as [], it will be chosen such that the signal has a chance to die down to -120dB, or to not explode beyond 120dB, or to show five periods if there is no significant damping. If no return arguments are requested, plot the results.

See also: freqz, zplane.