convolve – SPECTRUM

public pure function convolve(x, y, method) result(rst)

Computes the convolution of a signal and kernel.

Type	Intent	Optional		Name
real(kind=real64),	intent(in)		::	x(:)	The N-element signal.
real(kind=real64),	intent(in)		::	y(:)	The M-element kernel.
integer(kind=int32),	intent(in),	optional	::	method	An optional input that dictates the expected convolution result. The following options are available. SPCTRM_FULL_CONVOLUTION: The full convolution results are provided, including the portions polluted courtesy of the zero-padding and the corresponding wrap-around effects. The length of this output is N + M - 1. SPCTRM_CENTRAL_CONVOLUTION: The N-element result containing the convolved signal not poluted by the zero-padding and corresponding wrap-around effects.

The convolved result.