3 ms·
That takes care of lost information, but how do you reliabiliy filter out signal from noise? Can a simple FIR filter work in this situation?
by devxpy 6y ago
That takes care of lost information, but how do you reliabiliy filter out signal from noise? Can a simple FIR filter work in this situation?
- vvanders 6y agoFT8 syncs everyone's clock on 15s intervals, you can also send well known sequences at the start of a transmission and search for those.
- ruslan 6y agoFIR filter alone cannot do this, but combined with special coding like Direct Sequence Spread Spectrum (DSSS) does it pretty well. For example, CDMA and GNSS benefit from using DSSS.