卫星检测识别是移动通信天线跟踪系统中的关键技术。设计并实现了一种基于FFT的卫星信号检测识别系统，该系统通过检测卫星信标信号识别卫星，保证了识别率。在卫星跟踪阶段通过FFT实时纠正频偏，使频偏稳定在一定范围以内，提高了天线跟踪目标卫星的精度和稳定性。

The satellite detection and identification is critical to the mobile communication antenna tracking system. A satellite signal detection and recognition system based on FFT was designed and implemented. In the system, the recognition rate is ensured by detecting the satellite beacon signal for satellite recognition, and the frequency deviation is corrected by real-time FFT at the satellite tracking stage, so that the frequency deviation is kept within a certain range. Therefore, the accuracy and stability of the antenna in target-satellite tracking are improved.