Question about program NoiseAccelerometer

[Kyrie714]

Hello, developers!

I'm trying to add noise to simulated accelerometer data through NoiseAccelerometer. The colored noise expression is as below:

For this purpose, I set the parameters as follows:

However, there was a warning during operation:

And the acc along data is all 'nan'.

How could I solve this problem?

Thank you in advance for your feedback and help.
With Kind Regards,
Kyrie714

[tmayerguerr]

Hi Kyrie714,

The problem is that your PSD expression is also evaluated for the 0 Hz frequency:
"Warning: PSD at frequency 0 Hz is nan"
This might be solved by extending your expression by a condition like:
if(freq==0, 0, your expr)

best regards
Torsten

[Kyrie714]

Thank you very much! It helps!