drmpeg/gr-dvbs2rx

Not working on my side

Closed this issue · 2 comments

nkhs commented

I cannot see Result file(decoded.ts)

This is my error logs
""""""""""""
Baseband header crc failed.
frame = 202, BCH decoder too many bit errors.
frame = 203, BCH decoder too many bit errors.
Baseband header crc failed.
frame = 204, BCH decoder too many bit errors.
frame = 205, BCH decoder too many bit errors.
Baseband header crc failed.
frame = 206, BCH decoder too many bit errors.
frame = 207, BCH decoder too many bit errors.
""""""""""""

Looks like there might be a regression with the DVB-T2 example. The DVB-S2 example (dvbs2_rx.grc) should still work okay.

I've updated the algorithm to use the corrected SNR instead of the hard decision estimate. This mostly solves the issue, but the current decoder still can't handle the old DVB-T2 example. That's because since the DVB-T2 example was introduced, the LDPC algorithm has been changed to sacrifice some error correcting performance in favor of vastly improved processing speed. I've changed the DVB-T2 example to use more reasonable parameters.