Downchannelizer fix
Fixed the downsampling half band filter chain so that each stage output is divided by two before entering the next stage. This fixes irregular power readings on channel Rx plugins while the spectrum appears flat.
AM demod fixes and enhancements
- added an optional bandpass sharp (boxcar) filter to cut frequencies below 300 Hz. This can help with small signals on air band.
- refactoring of demodulator
- use double type for all moving averages
NFM demod fixes
- Refactored optional AF squelch that replaces the deviation squelch
- Squelch refactoring with ramp up and down using a smootherstep function to minimize head and tail noises
- use double type for all moving averages
LimeSDR fixes
- Officially includes Windows64 support
- Fixed NCO button
- Fixed frequency reading on spectrum when starting with NCO