To increase transmission rate without changing frequency band width.
The intermediate frequency outputs of n-number reception systems are digitally wave detection-processed by wave detecting means 171-17n so as to obtain digitized baseband waveforms. They are exchanged and supplied to judging means 211-21n or a common-mode synthesizing means 22 through memories 181-18n by a change-over means 191. A symbol is judged in the judging means 211-21n, common-mode synthesization is executed in the means 22 which executes one-group conversion in the means 24 and the symbol is judged by the means 23. The wave-detecting means 171-17n A/D converts an input, detects wave by complex multiplication and executes a digital filter processing, etc. Realization is executed by a software where a modulation form and code transmission speed, etc., in accordance with setting for a control means 14 are adopted as an argument.
KUMAGAI KEN
NOJIMA TOSHIO
