| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problem that conventionally receivable programs have been difficult to be automatically retrieved at a high speed, in a case where electric field intensity is low, ground digital broadcasting and ground analog broadcasting are present mixedly, C/N ratio is low, and various interferences occur in ground digital broadcasting. SOLUTION: A control 117 makes a comparative discrimination in AGC control signals, a synchronization establishment state, a dispersion value or an error rate value before correction, inner code error rate value after correction, and outer code error rate value, after the correction in this sequence. |
