How to compare 2 signals

I need to develop an algorithm that will compare two signals (1 Reference Signal and other is measured signal values from sensor) and estimates error occurred between 2 signals. I would appreciate any help.

I have attached figures below to provide an idea about how my both signals looks like.

I want to find error between measured signal from reference signal.

1 -Amount of error between Reference signal and measured values signal. (I want to calculate value of overall error or difference occurred.May be in amplitude,phase or flattening of signal).

For the case of finding errors I have think of RMSE is it a good idea to take this approach as the length of my signals are same. Given the data reference signal and sensor signal data of size 1x1626100 and 1 x 1626100 double.

Correlation function also came into my mind but according to my knowledge I can only find similarity between different signals using correlation function not the total error or overall changes that occurred in signal.

The signal is generated provides an information about changes in steering angle along with time.

Any help ,clues ,detailed replies or (code if possible) will be highly appreciated.

Answer 1

[KSSV]

YOu may use root mean square error.

https://in.mathworks.com/matlabcentral/answers/4064-rmse-root-mean-square-error

[Muhammad Nauman Nasir]

Thanks a lot KSSV

Answer 2

[elias]

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