Title  Research on the influence of the guidance method of the proportional navigation under the guidance of the seeker error

Abstract The modern battlefield requires a higher guidance performance, in order to combat the non cooperative static and dynamic target。 As one of the core components of precision guided weapons, the seeker is responsible for the target attack by taking the angle of view angle and guided missile。 In actual flight, the seeker can often be affected by various error factors, such as the scintillation of target, jitter and so on。 In order to improve the guidance precision of precision guided weapons, it is necessary to eliminate the influence of these random errors on the seeker。 The aiming at object jitter of imaging seeker is the most commonly encountered, from the elimination of jitter electronic stability like algorithm with jitter compensation variable structure guidance law two aspects has carried on the analysis, the establishment of model of the corresponding compensation algorithm and simulation results to verify the jitter on the terminal guidance accuracy and the established with jitter compensation variable structure guidance law of guidance error compensation effect。

Keywords  seeker  shake   guidance accuracy  variable structure control 

目   次

1  引言 1

1。1  课题研究背景及意义 1

1。2  国内外研究现状 2

1。3  本文主要工作和章节安排 4

2  导引头成像原理分析 6

2。1  红外导引头硬件构成 6

2。2  红外导引头主要软件模块 7

2。3  弹目视线角速度提取方法 7

2。4  红外图像导引头主要误差源分析 9

3  抖动干扰下的稳像补偿算法设计 11

3。1  全局运动参数估计方法 11

3。2  图像补偿消除抖动方法分析 15

4  抖动干扰下的制导律补偿算法设计 20

4。1  导弹-目标相对运动模型分析 20

4。2  变结构控制模型分析 21

4。3  抖动噪声作用下的制导律模型建立 23

5  仿真实验部分 26

5。1  理想飞行状态下弹道仿真部分