With the development of micro-inertial navigation system technology,more and more unmanned platforms are equipped with GPS/INS integrated navigation terminal and have certain anti-spoofing capabilities.But the existing satellite navigation spoofing methods are difficult to meet the demand for spoofing targets in any direction.To solve this problem,an omnidirectional position deportation algorithm for GPS/INS integrated navigation terminal was proposed,which could be used in the scene of illegal unmanned platform control.This method takes the design of satellite spoofing signal as the breakthrough point,firstly,the in-fluence of satellite navigation spoofing on the position and state parameters of integrated navi-gation was analyzed;secondly,the influence of satellite navigation spoofing on the state pa-rameters of integrated navigation was taken as the constraint condition to obtain the spoofing signal;thirdly,the spoofing amount of satellite spoofing signal required for position deporta-tion was determined;fourthly,the omnidirectional position deportation model was estab-lished by using the determined spoofing amount;finally,the corresponding spoofing signal was generated by using the established model to realize the omnidirectional position deportation task of integrated navigation terminal.The test verifies that the algorithm designed in this paper can realize the position deportation of the integrated navigation terminal in 360° arbitrary heading.
关键词
导航欺骗/全向位置驱离/卫星欺骗信号/GPS/INS组合导航/导航对抗
Key words
navigation spoofing/omnidirectional position deportation/satellite spoofing sig-nals/GPS/INS integrated navigation/navigation countermeasure
维普
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