FrequencySamplingFilterKernel

FrequencySamplingFilterKernel[{a1, ..., ak}] creates a finite impulse response (FIR) filter kernel using a frequency sampling method from amplitude values ai.

• FrequencySamplingFilterKernel[{a1, ..., ak}, m] creates an FIR filter kernel of type m.

Examples

Create a lowpass filter kernel:

FrequencySamplingFilterKernel[{1, 1, 1, 0, 0, 0, 0, 0, 1, 1}]

Apply the filter to data:

kernel = FrequencySamplingFilterKernel[{1, 1, 0, 0}];
ListConvolve[kernel, data]

Please visit the official Wolfram Language Reference for more details.