4 4 8

0	0	1	1
2	2	3	3
0	0	1	1
2	2	3	3


0	4	2	6
1	5	3	7
2	6	0	4
3	7	1	5



This is the Ungerboeck code for 8-PSK (natural mapping).
The states are defined in Ungerboeck's way. 

d_free^2=4 Es -> 3.0 dB over uncoded QPSK 

Parity check matrix in octal: [0 2 5]

Generator matrix:

[1	0	0
 0	1+D^2	D]
