现代电子技术Issue(19)：1-4,8,5.
基于加权估计的紧组合导航抗欺骗算法研究
Research on anti-spoofing algorithm of tightly integrated navigation system based on weighted-estimation
摘要
Abstract
Aiming at the problem that the GPS signal is easy to be spoofed and disturbed in battlefield environment,a flit-tering algorithm of tightly integrated navigation system based on weighted-estimate is proposed. The algorithm estimates the GPS deceive signal firstly by using weighted least square algorithm,then introduces the obtained estimated state quantities and error variance matrix into the integrated navigation model to improve anti-spoofing ability of GPS receiver. The simulation results show that in the retransmitted deception jamming condition,the method based on the combination of weighted estimation and tightly integrated navigation system has the characteristics of high positioning accuracy and strong robustness. The method is easy to realize,and the prediction is reliable,so it has practical application value.关键词
抗欺骗/转发式欺骗/加权最小二乘/紧组合/组合定位Key words
anti-spoofing/retransmitted spoofing/weighted least square/tightly integrated navigation/integrated positioning分类
信息技术与安全科学引用本文复制引用
袁超,康国华,郑峰婴,徐川,张雷,华冰..基于加权估计的紧组合导航抗欺骗算法研究[J].现代电子技术,2013,(19):1-4,8,5.基金项目
国家自然科学基金(61203188)；中央高校基本科研业务费专项资金资助(NN2012023；NS2012127) （61203188）
