c3_upsample.m

Matlab实现对正弦波采样的线性内插

% File: c3_upsample.m
% 上采样/内插操作的实现
function out=c3_upsample(in,M)
L = length(in);
out = zeros(1,(L-1)*M+1);
for j=1:L
    out(M*(j-1)+1)=in(j);
end