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Advice for ultrasonic signal processing.

JPolo

New Member
Hi everybody! I need to recover the signal captured by 3 or 4 hydrophones and doing the respective signal processing (amplification, filtering, ADC). What kind of microcontroller should I use in order to do that? The recovered signal should be between 25 kHz and 200 kHz.
Thanks!
 

dknguyen

Well-Known Member
Most Helpful Member
I don't think an MCU can handle filtering for that many signal sources at those frequencies on top of everything else at those bandwidths. Could be wrong though.
 

ronsimpson

Well-Known Member
Most Helpful Member
One example is to record all 4 signals for 10,000 samples then go back and process them in NOT-real time.
There are DSPs that probably can do that in real time. Could use 4 small DSP parts.
A DSP is made to do this job, but is not a good microcontroller for general purpose applications.
 

Nigel Goodwin

Super Moderator
Most Helpful Member
One example is to record all 4 signals for 10,000 samples then go back and process them in NOT-real time.
There are DSPs that probably can do that in real time. Could use 4 small DSP parts.
A DSP is made to do this job, but is not a good microcontroller for general purpose applications.
The dsPIC's are pretty good general purpose micro-controllers (it's just the usual PIC core), I've no idea how they are as DSP's though? - I keep meaning to have a play with one.
 

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