Advice for ultrasonic signal processing.

[JPolo]

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]

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]

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]

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.