离散跟踪微分器在着舰导引滤波中的应用  

Application of Discrete Tracking Differentiator to Carrier Landing Guidance Filtering

作　　者：李冀鑫[1] 侯志强[2] 郑小洪[1] 

机构地区：[1]海军航空工程学院研究生管理大队,山东烟台264001 [2]海军航空工程学院飞行器工程系,山东烟台264001

出　　处：《飞行力学》2008年第4期69-72,共4页Flight Dynamics

摘　　要：介绍了自动着舰导引系统的工作原理及其滤波问题。为了抑制着舰导引系统跟踪雷达的高频噪声,并且克服常用的滤波器采用有限差分法求微分估计的弊端,采用两个二阶离散跟踪微分器串联起来,对含有噪声的雷达测量值进行滤波,并且提取其一二阶微分信息。结果表明,在仿真中使用白噪声模拟雷达噪声,跟踪微分器的滤波效果令人满意。This paper introduced the principle of the automatic carrier landing guidance system and its filtering problem. In order to reject the radar noise and avoid using a finite difference for the estimates of derivatives, two tracking differentiators were linked together to filter the noisy radar measurements of aircraft altitude and get its first and second derivatives. In the simulation, white noise was used to mimic the radar noise. And the simulation results prove that the noise rejection capability of the tracking differentiator is satisfied.

关 键 词：着舰导引 滤波 跟踪微分器 

分 类 号：V249[航空宇航科学与技术—飞行器设计]