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Channel emulation

Does anybody know how to implement a 2 tap tapped delay line on labview using usrp ? The idea is to multiply an incoming signal from the usrp 2954 Rx port by a multipath-doppler channel and then send it out to the receiver through the Tx port of the usrp.

What i tried to do is to use a wave generator in a while loop, the first iternation send the signal, the second one adds a delayed copy of the same signal with a phase shift due to doppler. This might be not correct but I really appreciate any advices or corrections.

I attached the labview nxg 3.1 project.

 

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Hi,

 

We have an example that has been developped by our application engineers that does Channel Emulation but on the VST. It would be great if you could take a look at how it was implemented and do something similar on the USRP using its FPGA.

Here is the link for the example:

https://forums.ni.com/t5/Example-Programs/MIMO-Channel-Emulator-for-PXIe-564xR/ta-p/3820490

 

Hope this helps!

 

Best regards.

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