双基地MIMO雷达目标参数估计及动态跟踪新算法

发布时间：2018-04-27 01:16

本文选题：干扰源定位 + 多普勒频率　；参考：《信号处理》2014年02期

【摘要】：民航地空通信受到无线电干扰会严重危机民航飞机的正常飞行。本文在深入研究地面干扰源定位问题的背景下,提出基于分数阶模糊函数的飞机动态跟踪算法。首先提出一个新的回波信号模型,通过搜索分数阶模糊函数的峰值点,实现了对多普勒频率的瞬时估计,并提出基于分数阶模糊函数的投影近似子空间角度跟踪算法(FAF-PAST),实现了2维发射角和2维接收角的联合动态递推估计。接下来根据阵列模型图中的几何关系,推导出了飞机的运动速度及三维位置坐标,从而实现飞机目标的动态跟踪,为后续地面干扰源定位打下良好的基础。仿真结果表明了该文提出的模型和算法的正确性和可行性。
[Abstract]:The radio interference of civil aviation ground-air communication will seriously endanger the normal flight of civil aviation aircraft. In this paper, an aircraft dynamic tracking algorithm based on fractional ambiguity function is proposed under the background of ground interference source location. First, a new echo signal model is proposed. By searching the peak point of fractional ambiguity function, the instantaneous estimation of Doppler frequency is realized. A projection approximation subspace angle tracking algorithm based on fractional ambiguity function is proposed, which realizes the joint dynamic recursive estimation of 2-D emission angle and 2-D receiving angle. Then according to the geometric relation in the array model diagram, the motion velocity and three-dimensional position coordinates of the aircraft are deduced, which can realize the dynamic tracking of the aircraft target and lay a good foundation for the subsequent ground interference source location. Simulation results show the correctness and feasibility of the proposed model and algorithm.
【作者单位】：大连理工大学电子信息与电气工程学部;大连大学信息工程学院;
【基金】：国家自然科学基金资助项目(61172108,61139001,81241059) 国家科技支撑计划项目(2012BAJ8B06)
【分类号】：TN958

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