基于长基线(TDOA)落点目标定位技术

海上试验靶场中武器装备落点的精确测量是考核打击精度的关键问题,为提升武备落点精度测量,开展长基线(TDOA)落点目标定位技术研究,针对落点测量场景对落点目标定位进行定位精度分析和仿真计算。于某深海区开展设计指标验证试验,试验结果表明系统可实时显示落水目标位置,具有较高精度的定位结果,为武器装备落点精度测量提供技术支撑。

深海大区域目标落点声定位建模与仿真

为分析深海大范围区域随机入水目标的落点定位特性,提出以声信号到达时间差为测量元素的无源定位模型,并建立Monte-Carlo精度仿真算法。在采用四元阵并代入典型误差源条件下,目标在基阵中心位置时的均方根误差优于70 m,而在靠近基阵顶角位置时的均方根误差增大至O(100 m)。仿真结果表明,模型能够对深海声信道条件下的目标位置和基阵构型变化产生合理响应,可用于相关工程问题的精度分析及论证设计。

人机交互中的移动目标选择

针对人机交互中移动目标选择的不确定性问题,提出三高斯落点分布模型。首先介绍三高斯落点分布模型原理,比较与其他模型的关系,并对模型进行拓展;进而从用户界面角度介绍三高斯落点分布模型的应用;最后对未来移动目标选择不确定性进行思考。

Design and simulation for large parafoil fix line object homing algorithm

Traditional parafoil homing usually uses a point as object. As the mobility of parafoil is limited by its glide ratio and wind, in some cases when the parafoil scatter area is large, or the glide ratio of parafoil is small, the deviation of its landing point to object point will be arduous to control. Accordingly, during these situations, when parafoil is used in recovery of spacecraft or satellite, the landing area of parafoil can be set as a rectangle, and the object of parafoil can be set as a line segment. The thesis of this work is designing an algorithm for parafoil homing using line segment as object. The algorithm of wind velocity and direction calculation in different flying segments was also investigated. The algorithm designed navigates the parafoil to land into the predestined area and largely reduce the probability of recovery loads falling to unwanted area to damage houses and people.