首页>
外国专利>
Method and apparatus for reconstructing high-frequency multiple signals transmitted on a single radio-relay channel.
Method and apparatus for reconstructing high-frequency multiple signals transmitted on a single radio-relay channel.
展开▼
机译:用于重构在单个无线电中继信道上发送的高频多个信号的方法和设备。
展开▼
页面导航
摘要
著录项
相似文献
摘要
Method for reconstructing pairs of source signals (S1,S2;S1V,S1H,S2V,S2H) transmitted in highfrequency modulation on a single, "short-section", radio relay channel, comprising a first antenna (AT1) and a second antenna (AT2) transmitting respective useful signals (TX1,TX2;TX1V,TH1H, TX2V,TX2H) modulated by the associated source signals (S1,S2;S1V,S1H,S2V,S2H), a first antenna (AR1) and a second antenna (AR2) receiving, respectively, a first signal (RX1) which is the sum of the first useful signal (TX1;TX1V,TH1H) transmitted by the first antenna (AT1) of the two transmitting antennas (AT1,AT2) and at least one interfering component transmitted by the other transmitting antenna (AT2), and a second signal (RX2) which is the sum of the second useful signal (TX2;TX2V,TX2H) transmitted by the second transmitting antenna (AT2) and at least one interfering component transmitted by the first antenna (AT1), a receiver/demodulator (D1,D2;D1,D2,D3,D4) for reconstructing each source signal (S1,S2;S1V,S1H,S2V,S2H) transmitted, comprising the following steps:- 90° phase-shifting of the signals (RX2;RX2V,Rx2H) received by one antenna (AR2) of the two antennas (AR1,AR2) with generation of associated phase-shifted signals (RX2-90;RX2V-90,Rx2H-90);- addition of the 90° phase-shifted signals (RX2-90;RX2V-90,RX2H-90) to the corresponding signal (RX1;RX1V,RX1H) output by the other antenna (AR1) of the two receiving antennas (AR1,AR2) with generation of a signal comprising only the components (TX1;T1V,TX1H) derived from the first transmitting antenna (AT1) ;- subtraction between the signal (RX1) received by the first antenna (AR1) and the 90° phase-shifted signal (RX290) so as to generate a signal comprising only the components (TX2;TX2V,TX2H) derived from the second transmitting antenna (AT2);- demodulation (D1,D2) of the separated signals.
展开▼