At the same time, send and receive the same frequency, the same antenna \three system\ channel, because the circulator isolation and antenna standing wave ratio difference, send and receive the serious crosstalk, low sensitivity. People strive to improve the ratio of standing wave circulator isolation and antenna and improve the channel sensitivity with system, but the effect is minimal. The present invention go the other way, the amplitude and phase offset module (AP module) to send and receive crosstalk power, transceiver system channel crosstalk improve three, so as to improve the sensitivity of the channel. As shown in Figure 1, the AP module will launch the 9 channel output power coupled to a small part of receiving channel input, adjust the AP module 9 adjustable attenuator and 6 adjustable phase shifter 7, which is coupled to the equal amplitude, signal receiving and sending and receiving channel input signal crosstalk in opposite phase, the two offset each other. Caption: Figure 1 is the invention of the three channel system based on AP module diagram. 1 is to launch the channel; 2 is the receiving channel; 3 circulator; 4 is to send and receive antennas; 5 is the originator of the coupler; 6 adjustable attenuator; 7 adjustable phase shifter; 8 is the end of 9 coupler; AP module, which is the integration of the 5, 6, 7, 8.
【技术实现步骤摘要】
【技术保护点】
１．一种提高发收同时、同频、同天线的“三同系统”的信道灵敏度的方法，其特征在于：采用振幅相位模块（ＡＰ模块模块）抵消发收串扰功率来改善三同系统信道的收发串扰问题，从而提高其灵敏度；ＡＰ模块将发射信道输出功率耦合很少部分到接收信道输入端，调整ＡＰ模块的可调衰减器和可调移相器，使耦合到接收信道输入端的信号与发收串扰信号的幅度相等，相位相反，二者互相抵消。
【技术特征摘要】
【专利技术属性】
技术研发人员：杨士中，吴浩威，廖勇，曹海林，杨力生，王韬，邓晓琴，
申请(专利权)人：重庆大学，
类型：发明
国别省市：85
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