雷达跟踪能力建模及测试数据精度分析

发布时间：2018-08-02 08:09

【摘要】：雷达跟踪是外弹道试验测试的一种重要手段,而雷达的布设位置直接影响到测量的精度甚至是能否跟踪到目标；而随着新型武器的不断出现,目标的材质(隐身)特征和机动性能有了大幅度的提高和改善,而在试验中要求雷达跟踪系统能够适应目标的各种新特性。因此,在实验前对雷达的布站方案进行预先验证以评估方案的跟踪能力显得尤为重要。外弹道测试雷达跟踪能力预先论证系统正是这样的一个系统,它利用推演出的雷达信噪比跟踪算法模型,实时的对目标跟踪探测进行的预估计和可视化,使研究人员在实际工程前获知每一时刻的测量数据,采取及时有效的应对措施。本文是以外弹道试验测试方案预先论证系统项目为应用背景,对目标跟踪进行了系统设计。介绍了弹道运动学以及雷达的基本功能和结构,分析了目前现有雷达跟踪技术中有些参数无法准确测量、测试结果精确度等特点,设计了一种基于雷达信噪比的目标跟踪能力测试系统。该系统是在Delphi环境设计完成,设计成本低且能够将数据处理结果直观、简洁的加以展现,对实际工程方案的可行性进行了有效的判断。在研究设计的过程中,首先通过分析雷达方程基本形式和目标跟踪的相关技术,得出了雷达与目标距离、雷达与目标夹角及雷达散射截面积等影响雷达跟踪的重要参数,并在此基础上建立了雷达跟踪模型。其次,对导弹的飞行轨迹和提出的跟踪算法进行了可行性检测,通过软件仿真可得出该方法是行之有效的。鉴于此跟踪方法,准确的提取出影响目标跟踪和导弹飞行的各项参数,将得到的影响因子进行汇总分析,作为跟踪软件设计实现的基础。最后,运用Delphi开发环境,实现了雷达的跟踪测试能力系统软件的设计。该系统能够对导弹飞行轨迹、雷达跟踪状况进行测量,实现了雷达对目标跟踪的预估计和可视化。以此来验证雷达测试方案的可行性,并对远程武器系统测试方案的制定做了初步的估计,具有现实意义。
[Abstract]:Radar tracking is an important means of external ballistic testing, and the location of radar directly affects the accuracy of the measurement and even whether it can be tracked to the target, and with the continuous emergence of new weapons, The material (stealth) characteristics and maneuverability of the target have been greatly improved, but the radar tracking system is required to adapt to various new characteristics of the target in the experiment. Therefore, it is very important to evaluate the tracking ability of radar station placement scheme by pre-verification before the experiment. The pre-demonstration system of radar tracking ability for external ballistic testing is just such a system. It uses the derived radar signal-to-noise ratio tracking algorithm model to pre-estimate and visualize the target tracking detection in real time. The researchers are informed of the measured data at every moment before the actual project and take timely and effective measures to deal with them. In this paper, the system design of target tracking is carried out under the background of pre-demonstration of the test scheme of external ballistic test. This paper introduces the ballistic kinematics, the basic function and structure of radar, and analyzes the characteristics of the current radar tracking technology, such as some parameters can not be measured accurately, and the accuracy of test results is analyzed. A target tracking capability test system based on radar signal-to-noise ratio is designed. The system is designed in Delphi environment, the design cost is low and the result of data processing can be displayed directly and succinctly. The feasibility of the practical project is judged effectively. In the process of research and design, by analyzing the basic form of radar equation and the relative technology of target tracking, the important parameters such as the range between radar and target, the angle between radar and target and the area of radar scattering are obtained. On this basis, the radar tracking model is established. Secondly, the flight trajectory and the tracking algorithm of the missile are tested, and the simulation results show that the method is effective. In view of this tracking method, the parameters that affect the target tracking and missile flight are extracted accurately, and the influence factors are summarized and analyzed as the basis for the design and implementation of the tracking software. Finally, the software design of radar tracking and testing ability system is realized by using Delphi development environment. The system can measure the missile flight trajectory and radar tracking, and realize the pre-estimation and visualization of radar target tracking. In order to verify the feasibility of the radar test scheme, and to make a preliminary estimate of the long-range weapon system test scheme, it is of practical significance.
【学位授予单位】：西安工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN953

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