弹道多目标参数测量与识别方法及目标光学特性研究

Multi-target time and space position parameters measurement and target characteristics are paid close attention scientific problems in shooting range testing field. To gain ballistic trajectory multi-target parameters, this project uses eight screens arrays to set up multi-target parameters measurement new model and new algorithm under considering the projectile target self gravity influence, and solve the target spatial position measurement difficult problem when the motion orbit of projectile is parabola; researches the detection screen’s target optical characteristic in screen detection area, searches target optical characteristics change law and the contribution of target imaging information to photoelectric detection receiving sensor; researches the target information extraction method when projectile begins to enter the detection screen area, and studies target information fusion recognition method. This project has the forward-looking and challenging in theory and key technologies, it break through the limitation of multi-targets parabola motion space position parameters measurement when the weapons launch multi-projectile with high shooting frequency and high velocity. This project’s research has very important theoretical significance and application value，it provides new testing model, new detection mechanism, new target recognition method and multi-targets matching algorithm for ballistic trajectory multi-targets parameters measurement and recognition in shooting range. The research achievements can provide a necessary theory and technology basis for the development, acceptance and performance evaluation of new weapons in future.

多目标时空位置参数测试及其目标光学特性一直是靶场测试领域密切关注的科学问题。针对弹道多目标参数测量，本课题考虑运动弹丸目标自身重力影响，提出采用8光幕阵列建立多目标参数测量新模型与算法，解决弹道抛物线运动弹丸目标空间位置测量难题；研究探测光幕区目标光学特性，寻找探测光幕区目标光学特性变化规律及目标成像信息对光电探测接收传感器的贡献；研究目标进入光幕时刻信息提取新方法和多光幕目标信息融合识别处理方法。本项目具有前瞻性和挑战性，在理论和关键技术上，突破连发射击下抛物线运动的多目标空间位置参数测试瓶颈，为靶场测试领域弹道多目标参数测试与识别，提供新的测试模型、探测机理、目标识别方法、多目标参数匹配算法。研究成果为新型武器研制、验收和效能评估等奠定理论和技术基础，具有重要理论研究和应用价值。

针对弹道目标动态参数测试由于自身重力原因而影响测试精度，以及在复杂环境下目标信息难以识别等难题，本课题根据运动弹丸目标飞行特点，考虑了弹丸自身重力影响因素，提出采用8光幕阵列建立多目标参数测量新模型，研究多目标穿过多探测光幕平面的空间交汇序列特点，给出具有自修正的多目标参数计算函数；利用目标面元网格化分割方法和目标辐射特性原理，研究每一单元探测光幕目标光学特性计算模型和光电探测传感器获取辐射能量计算方法，给出探测光幕区目标光学特性变化规律及目标成像信息对光电探测接收传感器的贡献；根据小波多分辨特点，研究利用小波变换滤波原理和信号的奇异性特征，分析目标穿越单元探测光慕时产生电动势上的突变点，按照突变点去判读探测光幕输出信号的奇异性位置，并找出相应的突变时刻，按照测试系统的采样率，计算目标穿过多探测光幕系统中的各光慕间的时间值；以多光幕阵列测试系统的各成像光电探测接收传感器为核心，建立多光电接收传感器之间的数据关联和处理模型，采用D-S数据融合处理方法，研究了多光幕立靶测量系统目标信息融合识别构建、多光幕传感器信度函数的获取及多探测光幕传感器数据融合目标识别算法。通过实弹测试，初步对测试系统进行验证。本课题在理论和关键技术上，突破连发射击下抛物线运动的多目标空间位置参数测试瓶颈，为靶场测试领域弹道多目标参数测试与识别，提供新的测试模型、探测机理、目标识别方法。研究成果为新型武器研制、验收和效能评估等奠定理论和技术基础，具有很高的应用价值和广阔的应用前景。