usually the algorithm is based on phase difference, MUSIC or ESPRIT. There is a software package called gr-doa can be found on github, but it uses the ettus research X310 which is quite expensive. There is no ready to use software based on hackrf yet.
I¡¯m a beginner myself, learned some algorithms at school, but have never achieved on real world hardware yet. These days I will try to use a 2-channel limesdr to visually see what difference in phase will I detect while the angle of arrival changes, then I will write the software to automatically convert that to angle.
I guess possible but dont know which software can help to achieve this? Particularly setting up everything in working order in a challenge for me. Any help welcomed :)
I saw someone used 3 synchronized rtlsdr as passive radar. Theoretically 2 receiving channels can determine an angle from 0 to 180 degree, according to the thesis I have read. So I think it might be possible.
check this out: https://github.com/tejeez/rtl_coherent <https://github.com/tejeez/rtl_coherent>
Two Hackrf as passive radar?
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