how to remove error in this code?
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%%K=10%%
a = 1000;
a = rand([-1 1],a,1);
b= (a >= 0);
bm=(a<0);
b1(b)=1;
b1(bm)=-1;
d=b1(:);
h=[1 0.25 -0.5];
c=conv(h,d);
e=c(1:end-2,:);
noise1 =normrnd(0,0.1,[length(e)],1); % noise signal of zero mean and 0.1 variance
f1= e+noise1;
t=f1(1:end-990,:); %take 10 values
ss = 16; % NLMS step size
offset = 50; % NLMS offset
ha = adaptfilt.nlms(3,ss,1,offset);
stem([h', ha.coefficients']);
legend('Actual','Estimated');
xlabel('Coefficient number'); ylabel('Coefficient Value');
1 个评论
回答（1 个）
Jan
2016-4-9
The error message is clear:
a = rand([-1 1],a,1);
Error using rand
Size inputs must be scalar.
Perhaps you meant randi.
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