| 摘要 |
In a reception device and a reception method for a multivalue VSB, QPSK, or mutlivalue QAM modulated signal, reliability information (R) is generated (22) on the basis of estimation results for the received signal transmission channel, and Viterbi decoding is performed on the basis of the reliability information (R). It may be so arranged that the smaller the absolute value of the difference between the maximum gain and the minimum gain within the transmission frequency band of the output of a transmission channel estimation means (17) is, the higher the reliability indicated by the output reliability information will be. Error correction capabilities can be improved in various transmission channel environments, and errors in transmitted data recovered at the receiving end can be reduced. |
