Trace averaging

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Sensorman
Newbie
Posts: 0
Joined: Tue Feb 20, 2018 8:31 am

Trace averaging

Post by Sensorman »

I am using 5444B to extract some very small signals from noisy raw data, and have some comments about the process under Picoscope 6.13.15.4081. First, it would be REALLY useful if each channel selector could provide averaging on/off in just the same way that, for example, low-pass filtering is offered. Having to create a "math channel" to perform averaging is cumbersome, and you end up with no way to expand dynamically in Y scale except using the window zoom function, which usually gives very awkward scaling. Second, it would be EXTREMELY useful if the current displayed average could be stored in native .psd format, rather than having to export as .csv (which is the ONLY way I can find to save the actual waveform shown on screen). If I'm running a long-term time-triggered average, I really don't want to save any partial results (the noisy data). So I save the single last capture as .psd (just as a placeholder to retain set-up data), then select the same filename, switch to .csv, and save it again, hopefully remembering to select just the one waveform. Doing this repetitively becomes a real pain. I can't be the only user who relies frequently on time-averaging to reduce noise??

Gerry
PICO STAFF
PICO STAFF
Posts: 1145
Joined: Mon Aug 11, 2014 11:14 am

Re: Trace averaging

Post by Gerry »

Hi Sensorman,

It could be argued that (1) there is only 1 triggering Mode applicable to Channel averaging (which could make input channel averaging a bit more confusing), and (2) there are 4 buffered functions that would have to be added to the input options (which could make the input options a bit more cluttered), however I can't see any other major reason why this would be a problem, so I will raise an enhancement request for you.

I'm not sure why you would want to save the data file as a Photoshop Document, but if you meant psdata file format, then you can already do that.

Just to cover all the bases, I'm assuming that you're not using Resolution Enhancement because you don't have a sufficient gap between the bandwidth of your signal and the sample rate in order to avoid filtering your signal?

Regards,

Gerry
Gerry
Technical Specialist

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