Good afternoon, I am a complete noob playing with my YardStick one and HackRf one.
I am working a signal that I am fairly certain is using pulse interval encoding and I am having a heck of a time understanding how to turn the NRZ 1's and 0's into the Pulse Interval. The closest thing I have seen is how RFID uses pulse interval encoding but I don't think that is the same thing. I started by recording in osmocom_fft I then used inspectrum to extract symbols and found that most symbols were 1 unit in inspectrum, but there were a few places where there were 2 or 4 in a row of high or low. Once I exported the symbols I was able to generate a bit string of 1's and 0's representing highs and lows. I was able to identify the preamble and what I think is the sync word, but that's where I get lost. I have seen many examples where people take 3 bits and assume that say 001 is a 0 and 011 is a 1n a PWM model but nothing I seem to do seems to work to uncover the PIE encoding and was hoping someone out there could point me in the right direction. Thanks, Adam Sent from my iPad
