根据跟踪干扰随通信信号变频的特征，提出一种检测跟踪干扰的方法。该方法对空闲信道采用能量检测法进行检测，对通信信道采用在信号中插入训练序列进行检测，根据干扰是否连续多次伴随信号出现、消失来判断系统是否受到跟踪干扰，并推导出该方法在加性高斯白噪声(AWGN)信道条件下的检测概率。通过对该方法进行计算机仿真，计算出不同仿真条件下的检测概率，验证了该方法的正确性和有效性。理论分析和仿真结果表明，信道改变次数越多，检测结果的可信度越高，但检测概率越低；在低信干比条件下，仿真检测概率与理论值较为符合，在高信干比条件下，检测性能受信道噪声影响较大。

Based on the characteristics of follower jamming which changes frequency with the communication signal, a method to detect follower jamming is proposed. The method uses the energy detection approach to detect the unused channel and detect the communication channel by inserting a training sequence into the signal. According to whether the jamming continuously appears or disappears with the communication signal many times, it can judge whether the system is subjected to follower jamming. In addition，the detection probability in Additive White Gaussian Noise(AWGN) channel is derived. Through the computer simulation of the proposed method, the detection probability under different simulation conditions is calculated，which verifies the correctness and effectiveness of the method. The theoretical analysis and simulation results show that the more number of channel changes, the higher credibility of the test result, but the lower detection probability. Under the condition of low signal-to-jamming ratio, the simulation detection probability is consistent with the theoretical value，and the detection performance is greatly affected by the channel noise under the condition of high signal-to-jamming ratio.