发明名称 RADIO COMMUNICAITON SYSTEM
摘要 PURPOSE:To provide communication with the same transmission quality as that of a reproduction relay system by compensating added adjacent channel passing interference comprehensively by a reproduction radio station provided with a demodulator and a wave equalizer in a hybrid relay system in which a non-reproduction repeater station is provided between a transmission radio station and a reproduction radio station. CONSTITUTION:Frequency converters 12-20 which select all the output signals of a heterodyne upward or downward for plural transmission/reception local signals used in a frequency conversion function, a reference frequency oscillator 1, and phase synchronous oscillators 9-11 which generate the plural transmission/ reception local signals used in frequency conversion based on the output signal of the oscillator 1 and synchronize the transmission/reception local signals of all the systems in the non-reproduction repeater station 145 are provided in the non-reproduction repeater station 145, and a noise compensating means which compensates the addition of an interference noise generated at the non- reproduction repeater station 145 comprehensively by the wave equalizers 141-143 setting the adjacent channel passing interference so as to be assumed as multipass interference is provided in the reproduction radio station 146.
申请公布号 JPH06125283(A) 申请公布日期 1994.05.06
申请号 JP19920296662 申请日期 1992.10.09
申请人 NIPPON TELEGR & TELEPH CORP <NTT> 发明人 KAGAMI OSAMU;WATANABE KAZUJI
分类号 H04B3/06;H04B7/005;H04B7/15;H04J1/04 主分类号 H04B3/06
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