| 摘要 |
PURPOSE:To obtain a decoder for an error correction code having very correction capability by using the erasure error correction technology in decoding an error correction code. CONSTITUTION:A digital signal 11 subject to demodulation and error correction coding is inputted to one input terminal 21 of an erasure decoding circuit 3. An intermediate frequency signal 10 is fed to a reception electric field level detector 4 to measure a reception electric field level and converter into a reception electric field level signal 13. The reception electric field level signal 13 is inputted to an erasure flag discriminator 5 and when it is discriminated that the signal 13 is at a level or below causing an error, an erasure flag signal 14 is outputted to one input terminal 22 of the erasure decodingcircuit 3. The circuit 3 applies correct decoding to the reception error correction code signal 11 inputted from a demodulator 2 based on the erasure flag signal 14 outputted from the erasure flag discriminator 5.
|
