Error with phaseNoiseMeasure command

I have a time domain signal whose PSD is required to be calculated. When I am using the new command "phaseNoiseMeasure" in MATLAB R2020b, it is showing an error message related to vertcat. I have attached the screenshot of the error message.

I have attached the code and corresponding MATLAB figure with this post. How to get rid of this error and actually get the PSD?

Answer 1

[Shiva Kalyan Diwakaruni]

Hi,

the above error is occuring because the values of x and y which is accessed using dataObjs(1).XData and dataObjs(1).YData is passed as a row vector(1*m) but phaseNoiseMeasure function is expecting column vector(m*1)

you can change your code from

x = dataObjs(1).XData;

y = dataObjs(1).YData;

to

x = dataObjs(1).XData';

y = dataObjs(1).YData';

and you can get rid of this error and actually get the PSD.

hope it helps,

thanks