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Firstly,thank you every much for your advise.I will find materials about how to realize it in FPGA logic.
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The link to the paper I sent you earlier in this discussion has plenty of references.
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My system isn't used in medical instruments or like that,so it's different with what you said.Each ultrasonic channel is independent from others.The process flow of each ultrasonic channel is similar,and the difference is the parameters which used in process module.
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Ok, thanks.
Are you generating the 10kHz signal on the 2.5MHz carrier? If so, it will make your system design easier if the FPGA processing the receiver channels uses the same reference frequency as the transmitter.
Out of interest, why is the ultrasonic bandwidth only 10kHz? That seems like a very narrow bandwidth (relative to the sonar and medical ultrasound devices I've used).
Cheers,
Dave
Honored Contributor
