MATLAB基于地磁与GPS组合的弹丸滚转角测量仿真
关键词 GPS 地磁 Simulink 修正弹 组合测量
毕业设计说明书（论文）外文摘要
Title The Geomagnetic and GPS-based Projectile Attitude Measurement
Abstract
With the advent of the information age, the precision strike will be the inevitable demands of modern warfare. In face of terrorism, efficiently killing terrorists and protecting the hostages make the development of precision strikes on the very important place. Consider the economy of ammunition, logistics and low collateral damage, the modified bomb is the best choice. In the process of trajectory control , real-time accurate measurement of projectile roll angle is required. Based on the measurement principle of the geomagnetic and GPS, using of MATLAB’s Simulink blocks 6DOF trajectory simulation, simulation model of the combination of GPS and geomagnetic measurements of projectile roll angle. The model can effectively carry out the simulation of the combination of GPS and geomagnetic measurements projectile roll angle. The simulation study found that, based on GPS and geomagnetic combination of projectile roll angle measurement methods to meet the requirements of trajectory correction.
Keywords GPS Geomagnetic Simulink Correction Projectile Combination of measurement
目录
1 绪论 1
1．1 本课题的研究背景和意义 1
1．2 国内外发展现状 2
2 GPS和地磁的介绍 3
2．1 GPS介绍 3
2．2 地磁介绍 4
3 GPS和地磁的计算公式及组合 6
3．1 GPS测量 6
3．2 地磁测量 7
3．3 弹丸外弹道 9
4 GPS和地磁测量硬件电路设计 14
4．1 GPS硬件电路 14
4．2 地磁测量硬件电路 15
5 GPS和地磁测量误差分析 19
5．1 GPS与地磁测量中误差的种类 19
5．2 GPS与地磁测量电路中误差分析 19
6 Simulink仿真 23
6．1 Simulink介绍 23
6．2 仿真中一些重要模块的介绍 23
6．3 本课题仿真介绍 23
结 论 38
致 谢 39
参 考 文 献 40
1 绪论
1．1 本课题的研究背景及意义
战争旨在杀伤敌人，保护善良民众。
在信息化发展的今天，精确化打击是我们武器专业的重点研究方向，精确打击首推导弹。导弹的高额的成本对我们发展中国家是一个很大难题。弹道修正弹的产生，弥补了导弹和一般常规弹药的空白。
弹道修正弹的基本概念是：在是在原有榴弹、追击炮弹或火箭弹的引信换装成弹道修正模块，由GPS或地面(舰载)雷达等探知飞行中弹丸在某几个时刻的空间位置或飞行姿态，将此位置与地面火控计算机中预先装订的理想弹道比较，根据偏差大小，调整弹的方向速度等。[1]
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