文件名称:Earth-center-ed-FiX-Coordi-nateSECF
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此文档是摘要 针对预警卫星测量方程的非线性 利用传统方法 如EKF 不可避免地会带来线
性化误差.该文提出了几何定位 卡尔曼滤波 GL - KF 方法 在主动段弹道位于过地心
平面的假设下 根据2 颗卫星的角度测量解算出导弹位置 将测量方程转化为线性模-The t r adi ti onal met hod EKF Woul d 1ri ng a1out t he li neari Zati on
err or of t he meaSur e ment eGuati on . BaSed on t he aSSu mpti on t hat t he t r aJ ec-
t or y i n 1ooSt phaSe i S i n a pl ane vi a t he eart h S cor e a GL- KF Geomet r y Lo-
cati on and F il t er met hod i S pr eSent ed . W i t h t hi S aSSu mpti on t he m i SSil e poSi-
ti on WaS cal cul at ed on t he 1aSi S of t he Sat elli t e angl e o1Ser vati onS and t hen
t he nonli near meaSur e ment eGuati on i S t r anSf or med i nt o t he li near eGuati on
Whi ch r educed t he li neari Zati on er r or of meaSur e ment eGuati on .
性化误差.该文提出了几何定位 卡尔曼滤波 GL - KF 方法 在主动段弹道位于过地心
平面的假设下 根据2 颗卫星的角度测量解算出导弹位置 将测量方程转化为线性模-The t r adi ti onal met hod EKF Woul d 1ri ng a1out t he li neari Zati on
err or of t he meaSur e ment eGuati on . BaSed on t he aSSu mpti on t hat t he t r aJ ec-
t or y i n 1ooSt phaSe i S i n a pl ane vi a t he eart h S cor e a GL- KF Geomet r y Lo-
cati on and F il t er met hod i S pr eSent ed . W i t h t hi S aSSu mpti on t he m i SSil e poSi-
ti on WaS cal cul at ed on t he 1aSi S of t he Sat elli t e angl e o1Ser vati onS and t hen
t he nonli near meaSur e ment eGuati on i S t r anSf or med i nt o t he li near eGuati on
Whi ch r educed t he li neari Zati on er r or of meaSur e ment eGuati on .
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Earth-center ed FiX Coordi nateSECF.pdf
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