卫星识别跟踪系统是动中通测控系统中的关键技术。首先研究了目前卫星识别跟踪系统采用的方案,根据动中通系统的工作需要,提出了双源卫星识别跟踪系统方案,并根据该方案完成了双源卫星识别跟踪系统的软硬件设计,该方案能够实时敏感卫星信号强度的变化,响应速度快、跟踪精度高,使系统能够通过检测特定的信号以及信号强度的变化识别和跟踪卫星,保持通信链路的畅通,在检测信标识别卫星阶段采用了FFT纠正频偏的算法,提高了系统的精度和稳定性。

Satellite identification and tracking system is the key technology in the control system of Satcom on the Move(STOM).The scheme adopted by the current satellite identification and tracking system is studied.According to the actual working requirements of STOM system, a dual-source scheme for the satellite identification and tracking system is proposed.Based on the scheme, the hardware and software design of the dual-source satellite identification and tracking system is completed.The scheme can detect the changes of satellite signal intensity in real time with fast response speed and high tracking accuracy, so that the system can identify and track the satellite by detecting particular signals and the changes of signal intensity, and keep the communication link smooth.In the phase of detecting beacon identification satellite, an FFT algorithm of correcting frequency deviation is adopted, which improves the accuracy and stability of the system.