目的研究机动目标跟踪算法．方法利用广义似然比技术对机动目标进行检测，既确保检测的可靠性，又满足系统实时性的要求．采用变维和估计系统状态相结合的方法，对机动目标进行跟踪，当目标机动较弱时，对系统状态用噪声方差进行估计，避免由于变维法带来的暂态误差．当目标机动较强时，则采用变维法．结果与结论计算机仿真结果表明，这种新型机动目标跟踪算法具有良好的跟踪性能． Aim To study maneuvering target tracking algorithm. The method uses the generalized likelihood ratio technique to detect the maneuvering target, which not only ensures the reliability of detection but also meets the requirement of real-time system. By combining the variable dimension and estimating the system state, the maneuvering target is tracked. When the maneuvering target is weak, the noise variance of the system state is estimated to avoid the transient error caused by the variable dimension method. When the target maneuver is strong, the variable dimension method is adopted. Results and Conclusion Computer simulation results show that this new maneuvering target tracking algorithm has good tracking performance.