intdump() find vector mean

y = intdump (x, nsamp);

Average every nsamp elements of the column vector x. If x has multiple columns, execute each column separately.

s = rng; % 以结构体的形式将随机数生成器(random number generator, rng)的设置返回
rng(68521);	% 随机数种子设置为68521，缺省的算法参数默认使用梅森旋转

nsamp = 4;	% sps(samples per symbol)
ch1 = randi([0 1], 3*nsamp, 1);
ch2 = rectpulse([1 2 3]', nsamp);	% 矩形脉冲整形
x = [ch1 ch2];
y = intdump(x, nsamp);

rng(s);	% 将随机数生成器(random number generator, rng)恢复成原来的样子