Signal Toolkit - dst

Function File: y = dst (x)

Function File: y = dst (x, n)

Computes the type I discrete sine transform of x. If n is given, then x is padded or trimmed to length n before computing the transform. If x is a matrix, compute the transform along the columns of the the matrix.

The discrete sine transform X of x can be defined as follows:

        N
 X[k] = sum x[n] sin (pi n k / (N+1) ),  k = 1, ..., N
        n=1
 

See also: idst.