Monday, December 4, 2017

TDoA measurements using GPS time-stamped IQ samples from KiwiSDRs (2)

20171203T1836 2117 khz STANAG4285

For this signal the cross-correlations look like this:
TDoA cross-correlations 2117 kHz
There are multiple propagation paths with different delays

Using the time interval indicated by the red lines the following plots are obtained:
TDoA 2117 kHz
It would be good to have a method for finding the best interval instead of doing this manually.

Thanks to all KiwiSDR owners who have made an effort to provide GPS signals to their KiwiSDRs.

No comments: