Viterbi Decoder: Difference between revisions
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== Example Flowgraph == | == Example Flowgraph == | ||
This flowgraph can be found at [https://github.com/gnuradio/gnuradio/blob/master/gr-dtv/examples/dvbt_rx_8k.grc]. | |||
[[File:Dvbt_rx_8k_fg.png|800px]] | |||
== Source Files == | == Source Files == | ||
Latest revision as of 14:21, 30 November 2020
DVB-T Viterbi decoder.
ETSI EN 300 744 Clause 4.3.3 Mother convolutional code with rate 1/2. k=1, n=2, K=6. Generator polynomial G1=171(OCT), G2=133(OCT). Punctured to obtain rates of 2/3, 3/4, 5/6, 7/8.
Data Input format:
000000X0X1 - QPSK.
0000X0X1X2X3 - 16QAM.
00X0X1X2X3X4X5 - 64QAM.
Data Output format: Packed bytes (each bit is data).
MSB - first, LSB last.
Parameters
- Constellation type
- constellation used.
- Hierarchy type
- hierarchy used.
- Code rate
- Coderate used.
- Block size
- Block size.
Example Flowgraph
This flowgraph can be found at [1].
Source Files
- C++ files
- TODO
- Header files
- TODO
- Public header files
- TODO
- Block definition
- TODO