摄动落点预测法的快速建模与基于精度最优的分段预测控制法

doi:10.3969/j.issn.1000-1093.2017.05.005

兵工学报 ›› 2017, Vol. 38 ›› Issue (5): 867-876.doi: 10.3969/j.issn.1000-1093.2017.05.005

摄动落点预测法的快速建模与基于精度最优的分段预测控制法

王钰，于纪言，王晓鸣

（南京理工大学智能弹药技术国防重点学科实验室，江苏南京 210094）

收稿日期:2016-07-06 修回日期:2016-07-06 上线日期:2017-07-03
通讯作者: 王晓鸣(1962—)，男，教授，博士生导师 E-mail:202xm@163.com
作者简介:王钰(1991—)，女，博士研究生。 E-mail: 15250996016@163.com
基金资助:
国家自然科学基金项目（11402121）

Rapid Impact-point Prediction Modeling Based on Perturbation Theory and Piecewise Prediction Control Method

WANG Yu, YU Ji-yan, WANG Xiao-ming

(Ministerial Key Laboratory of ZNDY, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)

Received:2016-07-06 Revised:2016-07-06 Online:2017-07-03

摘要/Abstract

摘要： 快速的高精度落点预测是实现高旋弹丸弹道预测修正或制导的关键，基于基准弹道的摄动（PP）预测法能够较好地平衡计算精度与效率。为解决PP预测法难以快速适应环境与目标的问题，结合摄动理论与分步逼近法实现初始发射条件及基准弹道的快速确定，并根据理论简化推导出摄动模型参数计算方法。通过弹道仿真与无控试验验证其可行性，结果表明:该方法可快速完成发射参量计算与摄动预测建模；与修正质点弹道（MPT）预测法相比，弹道前段PP预测法预测精度较优，弹道后段略差。综合PP预测法与MPT预测法计算速度与精度特点，提出结合PP与MPT的分段预测法，经蒙特卡洛仿真，分段预测法的修正效果相较于单一的PP或MPT预测法更优。

关键词: 兵器科学与技术, 制导炮弹, 快速落点预测建模, 摄动理论, 基准弹道生成, 分段预测法

Abstract: The rapid and accurate impact-point prediction is a key to correct or guide a high-spinning projectile， and the impact-point prediction based on perturbation(PP) with base trajectory can balance the calculation efficiency and precision. As the parameters of the perturbation model cannot be calculated rapidly with the variation in environment and target, a method combining the perturbation theory and step approximation method is proposed to calculate the proper launching parameter and base trajectory quickly; and an equation of the model parameters which can be calculated by iteration is deduced to fast modeling under arbitrary destination and condition. Simulations and uncontrolled experiment were carried out to verify the feasibility of the proposed method. The results show that the base trajectory and perturbation model can be established. Compared with the modified point-mass trajectory (MPT) method, the predicted error of ascending trajectory of perturbation method is smaller and the predicted error of descending one is larger. Considering the characteristics of PP and MPT methods, a piecewise prediction method combining PP and MPT is proposed. According to the Monte Carlo simulation, the correcting effect of PW method is better than those of PP or MPT method. Key

Key words: ordnancescienceandtechnology, guidedprojectile, rapidimpact-pointpredictionmodeling, perturbationtheory, basetrajectorygeneration, piecewisepredictionmethod

中图分类号:

TJ413⁺.6

王钰，于纪言，王晓鸣. 摄动落点预测法的快速建模与基于精度最优的分段预测控制法[J]. 兵工学报, 2017, 38(5): 867-876.

WANG Yu, YU Ji-yan, WANG Xiao-ming. Rapid Impact-point Prediction Modeling Based on Perturbation Theory and Piecewise Prediction Control Method[J]. Acta Armamentarii, 2017, 38(5): 867-876.

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摄动落点预测法的快速建模与基于精度最优的分段预测控制法

Rapid Impact-point Prediction Modeling Based on Perturbation Theory and Piecewise Prediction Control Method

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