Hello, I'm working on a TDOA based localization platform using 3 USRP X300's as receivers. I have them synchronized with a 10 MHz ref and PPS signal generated by an OctoClock. However, I'm having trouble getting reliable localization performance through this system. My TDOA measurements are not what I would expect for the geometry I'm using.
If I have the USRPs flashed with the same FPGA image and I use the same sample rate (i.e. 200e6/22 = 9.0909 MHz) across them all, is it possible the hardware could still be introducing different delays through each receiver? Rich
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