The problems of LDPC codes in CCSDS 131.0-P-

We found that the generator matrix in Fig.6-2 to be wrong, Bi,j's are not circulant. You can not derive circulant Bi,j's from the parity check matrix in Fig.6-1.There are two vital problems in the LDPC codes of CCSDS 131.0-P-1.1: (1) the parity...