雷达信号对运动目标跟踪探测研究

发布时间：2018-02-21 13:53

本文关键词： 雷达信号目标起伏雷达散射截面机动目标探测　出处：《计算机仿真》2017年08期 　论文类型：期刊论文

【摘要】：雷达信号是探测和跟踪运动目标的重要依据,如何准确快速获取雷达信号已成为现代雷达亟需解决的技术难题。为研究目标信号RCS起伏特性对雷达探测的影响,针对典型起伏目标,运用准静态法获取了目标随姿态角起伏的RCS序列,建立目标机动航迹,基于静态数据库提取目标机动RCS序列,利用起伏因子构建相应机动目标RCS起伏统计模型。最后,依据雷达回波信号与目标RCS的关系建立检测模型,研究了一定虚警概率下探测概率,信噪比和起伏因子之间的关系。结果显示,在一定信噪比范围内,发现概率与起伏因子成明显的正比关系,可为利用目标起伏性准确获取雷达信号,以提高探测概率和精确跟踪。
[Abstract]:Radar signal is an important basis for detecting and tracking moving target. How to acquire radar signal accurately and quickly has become a technical problem that needs to be solved in modern radar. In order to study the influence of target signal RCS fluctuation characteristics on radar detection, it is necessary to solve this problem. For typical undulating targets, the quasi-static method is used to obtain the RCS sequence with attitude angle fluctuation, the maneuvering track of the target is established, and the maneuvering RCS sequence of the target is extracted based on the static database. The statistical model of RCS fluctuation of maneuvering target is constructed by using the fluctuation factor. Finally, the detection model is established according to the relationship between radar echo signal and target RCS, and the detection probability under a certain false alarm probability is studied. The results show that in a certain range of signal-to-noise ratio (SNR), the probability is directly proportional to the fluctuation factor, and the radar signal can be obtained accurately by using the fluctuation of the target. To improve detection probability and accurate tracking.
【作者单位】：空军工程大学防空反导学院;
【基金】：国家自然科学基金资助项目(51372033)
【分类号】：TN957.51

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