matlab中delaysig(t,1,5)是什么意思

matlab中delaysig(t,1,5)是什么意思

t=0:0.01:3; %产生数值，0为初值，步进值为0.01，终值为3
b=t(ones(5,1),:);
其中ones(5,1)=[1;1;1;1;1;1]，产生5个为1的列向量
就是b为复制t的数据，产生5个相同行的t数值，也就是复制t 1*301维向量变成5*301维数组。

delaysig 含义：create delayed signal matrix from signal matrix. delaysig(x,d) x - sxt matrix with s-element column vectors for t timesteps. d - maximum delay. returns signal x delayed by 0, 1, ..., and d2 timesteps. delaysig(x,d1,d2) x - sxt matrix with s-element column vectors for t timesteps. dl - minimum delay. d2 - maximum delay. returns signal x delayed by d1, d1+1, ..., and d2 timesteps. the signal x can be a row vector of values, or a matrix of (column) vectors. example: x = [1 2 3 4 5; 10 9 8 7 6]; y = delaysig(x,1,3)

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