变速曲线外弹道参数光幕阵列测量模型与算法研究

The projectile flying parameters such as the velocity and the spatial-time location need to be accurately measured in the terminal ballistic tests of the range of a proximity fuze, the anti-missile weapons with high speed and high firing frequency, and the anti-satellite weapons. The measurement of the external ballistic parameters is still a technical problem which has not been fully solved in the field of weapons tests. The measurement method with the optical screen arrays has the advantages of novel principle and low cost, etc. The planar geometry measurement model of the optical screen arrays, however, is limited to the linear ballistic trajectory and can not be used for the parabolic ballistic trajectory. In order to solve these problems, a new optical screen arrays model based on the analytic geometry is presented and the technology solutions for accurate measurement are studied in this project. They will broaden new applied measurement fields of both the external and terminal ballistic trajectory with optical screen arrays. The new planar measurement model and formulas are studied based on the double-N type six optical screen arrays, and then the measurement formulas of the flying velocity and the time-space parameters for the curvilinear ballistic trajectory are derived. At the same time, the measurability of the optical screen arrays' structure is analyzed. The planar equations are set up by using many spatial position points. The calibration method and inversion algorithm of the optical screen arrays' structure parameters are researched. In addition, the algorithm of obtaining the precision flying time that a projectile goes through the detecting area in any angle which is a trapezoidal distribution in the thickness view is studied. As a result, the above researches expand the measurement theory of the optical screen arrays, break through the limitation of the curvilinear ballistic parameters with optical screen arrays and support a necessary theory and technology basis for the development, acceptance and performance evaluation of new weapons.

近炸引信作用距离、高射速近程反导武器、反卫星武器终点弹道试验测试中需要精确测量弹丸的速度、时空位置等参数，以上外弹道参数一直是武器测试领域尚未很好解决的技术难题之一。光幕阵列测量具有原理新颖实现成本低等优势，本课题针对光幕阵列平面几何测量模型仅限于直线弹道，无法测量抛物线弹道的缺陷，提出利用解析几何重新构建光幕阵列测量新模型，研究实现精确测量的技术解决方案，拓宽光幕阵列测量外弹道和终点弹道应用新领域。针对双N型六光幕阵列，研究平面方程测量模型与测量公式，推导曲线弹道速度与时空参数测量公式，并分析光幕阵列结构对可测性的影响，采用多个空间位置点构建光幕平面方程，研究阵列结构参数校准方法和反演算法，研究以任意角度穿过厚度呈梯形分布光幕的飞行时刻精确提取算法，扩充光幕阵列测量理论体系，突破曲线弹道参数光幕阵列测试技术瓶颈，为新型武器研制、验收和效能评估奠定必要的理论和技术基础。

近炸引信作用距离、高射速近程反导武器、反卫星武器终点弹道试验测试中需要精确测量弹丸的速度、时空位置等参数，本项目开展了变速曲线外弹道参数光幕阵列测量模型与算法研究,建立了曲线弹道光幕阵列测量理论模型与工程模型；研究了光幕阵可测性；提出了光幕阵列结构参数的校准机理与校准方法；分析了光幕阵列测量误差各因素影响规律，提出了两种结构参数反演算法和梯形光幕过幕时刻提取算法；研究了室内大靶面光幕探测灵敏度分布规律，并提出灵敏度均匀修正算法；分析了多管武器速射弹丸过幕概率特性；提出一种多目标光幕测量方法；研究的算法大部分进行了实弹试验验证。所取得成果拓展了光幕阵列动态测试理论，主要成果直接用于光幕阵列测量装置的研制，解决了多项重点型号武器研制和生产中密集度参数测量难题。. 在本基金的资助下，获得陕西省国防科技进步奖一等奖1项，中国产学研合作创新成果奖一等奖1项，中国兵器工业集团公司科学技术奖励进步奖二等奖1项，陕西省第一届研究生创新成果展一等奖1项，陕西省第三届研究生创新成果展三等奖1项，发表期刊论文27篇，会议论文2篇，其中SCI收录6篇，EI收录10篇，授权发明专利7项，编制国家军用标准2项。