电子信息对抗技术
電子信息對抗技術
전자신식대항기술
ELECTRONIC INFORMATION WARFARE TECHNOLOGY
2012年
4期
16-21,46
,共7页
相对定位%相位差变化率%可观测性%无源定位
相對定位%相位差變化率%可觀測性%無源定位
상대정위%상위차변화솔%가관측성%무원정위
relative localization%phase change rate%observable analysis%passive location
对于空中的飞行体而言,需要了解彼此间位置、速度和航向等空间状态信息。空间状态信息一般可以通过外界导航与定位支持系统来获取,如GPS和INS等,但这些外界导航系统存在精度和战时可用性问题。提出利用相位差变化率方法解决两飞行体在二维平面运动模型、三维立体运动模型时相互之间的定位问题,并且进行了可观测分析,并探讨了此方法的优缺点及下一步改进思路。
對于空中的飛行體而言,需要瞭解彼此間位置、速度和航嚮等空間狀態信息。空間狀態信息一般可以通過外界導航與定位支持繫統來穫取,如GPS和INS等,但這些外界導航繫統存在精度和戰時可用性問題。提齣利用相位差變化率方法解決兩飛行體在二維平麵運動模型、三維立體運動模型時相互之間的定位問題,併且進行瞭可觀測分析,併探討瞭此方法的優缺點及下一步改進思路。
대우공중적비행체이언,수요료해피차간위치、속도화항향등공간상태신식。공간상태신식일반가이통과외계도항여정위지지계통래획취,여GPS화INS등,단저사외계도항계통존재정도화전시가용성문제。제출이용상위차변화솔방법해결량비행체재이유평면운동모형、삼유입체운동모형시상호지간적정위문제,병차진행료가관측분석,병탐토료차방법적우결점급하일보개진사로。
The space state information such as position, velocity and heading is needed for aircraft bodies. These information can be acquired by external navigation and positioning system such as GPS and INS. However there are problems of accuracy and availability in time of war in the external navigation and positioning system. A kind of positioning method is proposed based on phase change rate in two-dimensional model and three - dimensional model between two aircraft bodies and conducts ob- servable analysis. In the end, the advantages and disadvantages of this method are discussed, and improvement is achieved.