insert.m

此工程为为一个完整的bpsk

% 对进行调制后的序列进行插值， 插值倍数为M=8
% 输入信号为signal_in，输出信号为signal_out

function [ signal_out, out_length ] = insert( signal_in, insert_num )

signal_length = insert_num*length(signal_in);
signal_out = zeros(1,signal_length);
insert_position = 1:insert_num:signal_length;
signal_out(insert_position) = signal_in;
out_length = 1:length(signal_out);