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AFE5809EVM: Calculate distance to the object by measuring time delay

Part Number: AFE5809EVM
Other Parts Discussed in Thread: TX517EVM

Hi,

I'm designing an active sonar system with this configuration:

TX517EVM -> Transducer -> TX810EVM -> AFE5809EVM -> TSW1400EVM

1. TX517EVM generates the pulse wave.

2. Transducer transmits the pulse into water and receives the echo

3. TX810EVM is a transmit/receive switch. It sends the received echo of the signal to AFE5809EVM.

4. AFE5809EVM does Analog to Digital Conversion and gives the output to TSW1400EVM

5. TSW1400EVM has a FPGA which does signal processing and shows the echoed signal as a plot. There is a software developed for TSW1400EVM namely, HSDC Pro that we are using.

Now, I can see the echo of my signal, however, I don't know how to calculate the distance with the object. I would appreciate any tutorial or guideline regarding how to get the distance with the object using MATLAB or C language (or any other language).

Thank you :)