altillimity/s-band-decoders

A bunch of programs to decode satellites in S-Band

S-Band-Decoders

A bunch of programs to decode satellites in S-Band

Credits

Thanks @r2x0t for giving me some advice on decoding Proba and @uhf-satcom for providing the data :)

Dependencies

Some projects will require (or / and) :

• libccsds
• libcorrect
• libpng + zlib
• libjpeg

The flowcharts require GNU Radio 3.8 or above.

Proba-1

Supported downlink : Dumps, 2235Mhz
Modulation : BPSK
Symbolrate : 2.048Mbps
Recording bandwidth : >= 3MSPS, something like 4MSPS is preferred

Decoding :

• Record a baseband of a pass
• Demodulate with Proba-1-2 Demodulator
• Process with Proba Viterbi Decoder to get CADUs
• Run through Proba Decoder in Proba-1 mode (Proba-Decoder 1 proba1.cadu)

Proba-2

Supported downlink : Dumps, 2235Mhz
Modulation : BPSK
Symbolrate : 2.048Mbps
Recording bandwidth : >= 3MSPS, something like 4MSPS is preferred

Decoding :

• Record a baseband of a pass
• Demodulate with Proba-1-2 Demodulator
• Process with Proba Viterbi Decoder to get CADUs
• Run through Proba Decoder in Proba-2 mode (Proba-Decoder 2 proba2.cadu)

Proba-V

Supported downlink : Dumps, 2235Mhz
Modulation : BPSK
Symbolrate : 1.919Mbps
Recording bandwidth : >= 3MSPS, something like 4MSPS is preferred

Decoding :

• Record a baseband of a pass
• Demodulate with Proba-V Demodulator
• Process with Proba Viterbi Decoder to get CADUs in Proba-V mode (-v)
• TBD - Data decoder coming later