Viterbi Decoder

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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.


Constellation type
constellation used.
Hierarchy type
hierarchy used.
Code rate
Coderate used.
Block size
Block size.

Example Flowgraph[edit]

This flowgraph can be found at [1].

Dvbt rx 8k fg.png

Source Files[edit]

C++ files
Header files
Public header files
Block definition