Unable to resolve the name dsp.FIRFilter.

Hi all,

I am newbie to MATLAB. I was trying out this LMS filter MATLAB example, but gets the following error

"Unable to resolve the name dsp.FIRFilter."

signal = sin(2*pi*0.055*(0:1000-1)');
noise = randn(1000,1);
filt = dsp.FIRFilter;
filt.Numerator = fir1(11,0.4);
fnoise = filt(noise);
d = signal + fnoise;

Do we need to have separate licence to run the tutorial?

PS: Currently I have licenses for the following products,

Answer 1

[Uday Pradhan]

Hi Veeresh,

The dsp.FIRFilter system object is part of the DSP System toolbox which is a separate licensed product. You can however try out the code using MATLAB online.

Note: Please check if you are eligible to access MATLAB online from this page.

Answer 2

[Veeresh Dammur]

Hi Uday,

Thanks for the response. I believe we need to have a license to try out the code on MATLAB online too. I receive the same kind of error over there.