用于鱼雷制导的潜艇目标强度预报结果快速拟合模型

王新宁; 孙 姝

doi:10.11993/j.issn.1673-1948.2013.01.015

用于鱼雷制导的潜艇目标强度预报结果快速拟合模型

doi: 10.11993/j.issn.1673-1948.2013.01.015

王新宁^1,2,
孙姝²

1.
上海交通大学船舶海洋与建筑工程学院, 上海, 200240
2.
海军潜艇学院作战指挥系, 山东青岛, 266042

基金项目: 国家自然科学基金(50979093)

详细信息

作者简介:
王新宁(1977-), 男, 在读博士, 讲师, 研究方向为水声目标散射特性.

中图分类号: TJ630.34
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- 被引次数: 0
出版历程
- 收稿日期: 2012-05-11
- 修回日期: 2012-07-13
- 刊出日期: 2013-02-20

A Fast Fitting Model of Submarine Target Strength Forecast Result for Torpedo Guidance System

WANG Xin-ning^1,2,
SUN Shu²

1.
School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
2.
Combat Command Department, Navy Submarine Academy, Qingdao 266042, China

摘要

摘要: 鱼雷制导系统有限的硬件条件及快速的攻击过程, 要求应用于鱼雷制导计算的数学模型必须快速而准确。本文根据板块元方法精确预报了潜艇在不同频率、不同方位角下的目标强度值, 先利用最小二乘法将单一频率下的方位角和目标强度进行曲线拟合, 然后以频率为变量对曲线组进行拉格朗日插值, 得到了一种以频率和水平方位角为变量, 能够满足鱼雷制导系统实时计算使用的潜艇目标强度预报结果快速拟合模型。仿真结果表明, 与现有的等效散射面积公式以及椭球修正模型等相比, 本文提出的方法计算速度快, 结果精度更高。
- 鱼雷 /
- 目标强度 /
- 快速拟合模型 /
- 拉格朗日插值
Abstract: Mathematical model for torpedo guidance computation ought to be fast and accurate due to the limited hardware of guidance system and the fast attack process. Based on block element method, the target strengths of a submarine in dif-ferent frequencies and azimuths are forecast precisely in this paper. Firstly, the curves of azimuth angle and target strength in single frequency are fitted by using the least squares method. Then, Lagrangian interpolation is applied to the curves taking frequency as the variable to obtain a fast fitting model of submarine target strength forecast result with variables of frequency and horizontal azimuth, which can meet the real-time computation for torpedo guidance system. Simulation re-sults show that this method has higher computation speed and precision than existing equivalent scattering area formula and ellipsoid correction model.
- torpedo /
- target strength /
- fast fitting model /
- Lagrangian interpolation

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参考文献(8)

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