北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2012, Vol. 35 ›› Issue (2): 28-31.doi: 10.13190/jbupt.201202.28.120

• 论文 • 上一篇    下一篇

微波着陆系统扫描波束主瓣替代的误差分析法

戴传金1,吴德伟1,赵修斌1,王永庆1,何晶1,张潇2   

  1. 1 空军工程大学 电讯工程学院, 西安 710077; 2 中国人民解放军94188部队 通信修理所, 西安 710077
  • 收稿日期:2011-07-08 修回日期:2011-10-08 出版日期:2012-04-28 发布日期:2012-01-05
  • 通讯作者: 戴传金 E-mail:daichuanjin@gmail.com
  • 作者简介:戴传金(1982-),男,博士生,E-mail:dcjdai#163.com 吴德伟(1963-),男,教授,博士生导师
  • 基金资助:

    陕西省自然科学基金项目(SJ08F06)

The Analysis Method of Error of MLS Based on Replacement Technology of MainLobe Beaming

DAI Chuan-jin1,WU De-wei1,ZHAO Xiu-bin1,WANG Yong-qing1, HE Jing1,ZHANG Xiao2   

  1. 1 Telecommunication Engineering Institute, Air Force Engineering University, Xi’an 710077, China;2 Institute of Communication and Maintenance, People’s Liberation Army 94188, Xi’an 710077, China
  • Received:2011-07-08 Revised:2011-10-08 Online:2012-04-28 Published:2012-01-05

摘要:

为了准确分析微波着陆系统(MLS)接收机多径测角误差,提出了一种基于波束主瓣替代的误差分析方法.利用该方法计算了接收扫描脉冲-3 dB门限前后沿误差,建立了场地环境条件下微波着陆系统测角误差模型.在经典模型限定的前提条件下进行了微波着陆系统接收机测角的多径误差计算,[JP2]并与经典模型计算结果进行对比. 结果表明,采用主瓣替代方法能较好地克服经典模型在分析多径误差方面的使用局限性,具有一定的理论和实用价值.

关键词: 飞行器控制, 导航技术, 微波着陆系统, 多径效应, 测角误差, 建模与仿真, 计算精度

Abstract:

In order to truly analyze the multipath angle error of the microwave landing system(MLS) receiver, an error research method based on the equivalent replacement of the scanning beaming main lobe is presented. Through the equivalent Gauss replacement of the beam mainlobe of “From” and “To” pulse, the leading and trailing edge error of 3 dB scanning pulses threshold and the anglemeasuring model of microwave landing system are derived. The method is used to calculate the anglemeasuring performance error of the receiver for the special multipath environment. The results of replacement method computation are compared with the computed results of classical model. The new method can overcome the limitation and deficiency of classical model in the exact error calculation. Moreover, the accuracy of results is more improved than the classical model.

 

Key words: aircraft control, navigation technology, microwave landing system;multipath effect; angle error;simulation and modeling;calculation accuracy

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