一种低信噪比跟踪接收机技术研究

Research on a low SNR tracking receiver technology

天线口径较小时,接收到卫星信标信号的信噪比较低,跟踪余量较小。为满足小口径动中通天线的跟踪需求,研究了一种适用于低信噪比条件下的跟踪接收机。介绍了其工作原理,并对算法进行了MATLAB仿真,最后进行了FPGA实现。

When the antenna diameter is small,the carrier-to-noise of receive satellite beacon signal is low,and the tracking margin is small.In order to meet the tracking requirements of small aperture antennas of＂Sat-com on the Move＂,a tracking receiver technology for low SNR conditions is studied.The working principle of the algorithm is introduced,and the MATLAB simulation and FPGA implementation is carried out.