Hi Donal,
I understand that you are facing difficulty in changing the 'Window Length' and 'NFFT' in the Spectrum Analyzer block in MATLAB R2023a.
From the below documentation, it looks like there is a change in the GUI of the Spectrum Analyzer block:
One workaround is to use the "set_param" and "get_param" functions, which are used to modify and retrieve block parameters in Simulink, respectively. Kindly refer to the following code snippet for modifying the 'Window Length' and 'NFFT' in the Spectrum Analyzer block:
% Get the current block path
>> gcb
ans =
'untitled/Spectrum Analyzer'
% Get the current Window Length
>> get_param(gcb,'WindowLength')
ans =
'1000'
% Set the Window Length to 1024 and verify the Window Length has been updated
>> set_param(gcb,'WindowLength','1024')
>> get_param(gcb,'WindowLength')
ans =
'1024'
% Get the current FFT Length (NFFT)
>> get_param(gcb,'FFTLength')
ans =
'256'
% Set the FFT Length to 1024 and verify the FFT Length has been updated
>> set_param(gcb,'FFTLength','1024')
>> get_param(gcb,'FFTLength')
ans =
'1024'
To know more about "set_param" and "get_param" functions, please refer to below documentations:
Hope this helps.
