Codificação LDPC em sistemas de transmissão de imagens do satélite CBERS-2B

This work seeks to reduce the bit error rate (BER) using LDPC codes (Low Den- sity Parity Check Code) as error correcting code. These codes are known since 1963 and they are based on the Robert Gallager’s research. Images may have vary modifications caused by instru- mental errors (sensors). The results show the degradation caused and error correction using LDPC codes for channels with 1 until 4 errors of a remote sensing image captured from CBERS- 2B satellite.