论文部分内容阅读
上行线功率控制(UPC)技术可用以减小较高频段(例如14/11与30/20GHz)卫星通信系统中的上行线功率衰落效应.用这种技术来减小晴空条件下的EIRP,有助于使一个卫星通信系统实现有效的操作和减小对其它卫星与陆地链路的干扰. 对于一条特定的上行线的E工RP,如果由于局部降雨而引起襄落,那末信号的信嗓比将恶化,这是因为来自其仑站的持续干扰和固有的系统噪声将不受影响。·这样裁频受到衰落的地球站就需要增加它
Uplink power control (UPC) techniques can be used to reduce the effects of the uplink power fading in higher frequency bands (such as 14/11 and 30/20 GHz) satellite communications systems. Using this technique to reduce EIRP in clear sky, there are Help to make a satellite communication system to achieve effective operation and reduce interference to other satellites and terrestrial links.For a particular uplink E workers RP, if due to local rainfall caused by the drop, then the signal to voice ratio Will deteriorate because of continued interference from its station and inherent system noise will not be affected. Earth stations that have been subject to decay in this way need to increase it