导航信号有害波形星上自主监测技术  

Autonomous Detection Technology of Navigation Signal's Evil Waveform

作　　者：王斌[1] 任前义[1] 刘会杰[1] 

机构地区：[1]上海微小卫星工程中心,上海200050

出　　处：《微计算机应用》2011年第4期15-21,共7页Microcomputer Applications

摘　　要：基于多相关器的导航卫星发射信号有害波形监测是全球卫星导航系统完好性监测的重要内容。本文在有害波形地基监测基础上提出星上监测方案,并从提升信噪比、抑制多径和定量监测的角度仿真、分析了其相对地基监测的优势。结果表明,本文技术可有效提高导航卫星系统的完好性。Evil waveform is a distortion of downlink signal in global navigation system,and the detection of it plays an important role in integrity monitoring.This paper analyzed the ground-based detection methodology of 2nd-order step threat model of evil waveform.From the perspective of SNR improving and multipath inhibiting,this paper put forward a new technique based on SAIM.The simulation indicates its advantage in different situation,which makes a great significance of integrity monitoring.

关 键 词：卫星导航 完好性 有害波形 星上自主完好性监测 多相关器 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]