Commit graph

7 commits

Author SHA1 Message Date
Thomas Kolb 1c287466db Added interleaver 2019-09-14 01:23:26 +02:00
Thomas Kolb 85ce667d7b Added more pilot symbols for precision frequency estimation
This adds 4 pilot symbols each after 128 and 256 data symbols. These are
used for precision frequency estimation and feed-forward correction,
resulting in less decoder errors at the end of the packet.

Due to this change, this system can no longer transmit packets shorter
than 64 bytes!
2019-09-13 23:10:23 +02:00
Thomas Kolb 9e7dcaf678 Added scrambler, improved mod, demod and test flow graphs 2019-08-04 01:44:35 +02:00
Thomas Kolb 84afe7515b Moved RX flow graph to separate hier block 2019-07-31 21:46:55 +02:00
Thomas Kolb 4aea636999 Test flowgraphs: completed TX-RX chain
Now the receiver test flowgraph can demodulate the signal generated by
the TX, including synchronization, error correction and CRC checking.
2019-07-30 23:49:54 +02:00
Thomas Kolb 664d8fe0e6 Backup commit for the 16 QAM flowgraph
Now with closed-loop frequency estimation!
2019-07-23 23:20:49 +02:00
Thomas Kolb 55cfbd7ab0 Added 16-QAM modulator as GRC hier block + test flowgraph 2019-06-20 17:02:57 +02:00