中文摘要：

针对机动飞行的空中点目标,利用测量目标红外辐照度变化的测距原理,建立了具有Markov跳变参数的红外系统距离估计模型,基于结构随机跳变系统最优滤波理论,提出了一种新的红外系统距离估计算法。考虑算法的实时性,推导了两种简化算法。该方法的优点在于不需要限制目标的运动方式。仿真结果表明三种算法都能准确的估计红外系统距离,简化算法具有很高的实时性,易于工程实现。

英文摘要：

Based on the principle of measuring the distance of the target’s infrared irradiation,a distance estimation model with Markov jump parameters was presented which was aimed at maneuvering point targets. And then based on the optimal filtering theory of structure stochastic jump system,a new algorithm for infrared system distance estimation was proposed. Considering the rapidity of the algorithm,two simplified calculations were derived. The merit of this method is that the tar-gets maneuver is not limited. The simulation results indicate that the distance of the infrared system can all be estimated ac-curately by the three algorithms. The algorithm not only realizes in real-time processing but also has certain engineering prac-ticability.