DIVERSITY TYPE RECEIVING DEVICE, RECEIVING METHOD AND RECEIVING PROGRAM USING DIVERSITY TYPE RECEIVING DEVICE, AND RECORDING MEDIUM FOR STORING THE SAME RECEIVING PROGRAM USING DIVERSITY TYPE RECEIVING DEVICE

摘要

PPROBLEM TO BE SOLVED: To solve the problem wherein, when a noise signal is added to a reception signal, any error is generated in the assumption of transmission path characteristics, and any error is also generated in the signal of a data carrier in a conventional diversity type receiving device, and that when any signal affected by the noise signal is selected or compounded, receiving characteristics are likely to be deteriorated. PSOLUTION: When a signal carrier-modulated by a digital multi-value modulation system is received and decoded by two or more antennas, a complex signal to be compounded is selected by comparing an inter-reception signal point distance to be calculated from a complex signal with a preliminarily stored threshold, and the rate of composition is adjusted, and likelihood at the time of error correction is corrected. Thus, it is possible to secure a satisfactory receiving status by eliminating any influence from a noise signal. PCOPYRIGHT: (C)2006,JPO&NCIPI