Definition and properties of some common transform

Sine transform:

  For length $ N = 2 ^ p $ sequence of real numbers $ {x (n) | n = 1, 2, .., N} $, which is a sine transform

$X(k)=\sqrt\frac{2}{N}s(k)\sum_{i=1}^{N}x(n)sin(k(n-\frac{1}{2})\frac{pi}{N}, k=1,2 ,..., N$

Where $ s (k) = \ left {1, k = 1, 2, 3, .., N-1, 1 / \ sqrt (2) k = n $

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Origin www.cnblogs.com/Lebesgue/p/12108749.html