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ChangeLog.md

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  • leandvbtx: Added real-time mode (-fill).
  • leansdrserv: Network access to leansdr command pipelines.
  • leaniio{rx,tx}: PlutoSDR support via libiio.
  • leanmlmrx: Multi-channel FM demodulator.
  • leandvb: Spectrum output, JSON syntax.
  • leandvb, leandvbtx: DVB-S with non-standard constellations (with --viterbi).
  • leandvb: Support all DVB-S code rates with --viterbi.
  • leandvbtx: Support all DVB-S code rates.
  • New viterbi_sync with simplified metrics (may degrade QPSK sensitivity).

2017-07-23 v1.2.0

  • Fixed --hs mode on x86_64.
  • Added --s8, --s16, --u16.
  • Improved timing recovery at low SNR (small performance penalty).
  • Added --hdlc mode (compatible with some satellite modems).
  • Added benchmarking/test suite (test/leandvb_bench.sh)
  • Added tools for benchmarking: leantsgen, leandvbtx, leanchansim.
  • Added LOCKTIME output with --fd-info.
  • Added --hs mode (high throughput for raw u8 QPSK 1/2).
  • Added --drift.
  • Filters follow --drift.
  • Added --float-scale.
  • Documented --fd-const.
  • Renamed --probesize (was --maxsend).
  • Added --viterbi.
  • Added VBER (bit error rate after deconvolution, detected by RS).
  • Added FFT-based CNR estimator.

2016-09-16 v1.1.0

  • Support for DVB-S2 constellations (not FEC).
  • Fixed --derotate.
  • Fixed excess deconvolution errors with FEC7/8.
  • Added simple baseband filter (not RRC).
  • Added --fastlock mode for low SR and off-line processing.
  • Added leandvb_vt100ui.sh with constellation plot.

2016-09-04 v1.0.0

  • Development moved to git and github.
  • leandvb is now distributed as part of leansdr.
  • Support for all DVB-S code rates.
  • Status output for third-party UIs: lock, MER, frequency offset.
  • Software AGC is always enabled. rtl-sdr HW AGC is not recommended.
  • stderr is quiet by default. Use -v -d for troubleshooting.
  • Deconvolution is now algebraic (instead of look-up table).
  • Added leansdrscan for cycling through DVB settings.
  • Added leansdrcat for debugging real-time behaviour.

2016-02-29 Preview release of leandvb

  • Code rate 1/2 only.
  • Hard-decision deconvolution (without Viterbi).