STUDY OF FAST TRANSFER ALIGNMENT ON MOVING BASE

This paper holds that the key to improve the hitting rate of air-to-air missiles is to decrease the error of initial alignment of the inertial navigation system. Therefore, considering that the alignment should be completed within a specified short time, this paper presents the theory of transfer alignment and the computing way of accuracy in an air-to-air missile, where the platform inertial navigation system, or master INS, is adopted on aircraft, and the strap-down inertial navigation system, or slave INS, is used on missile. It emphasizes the idea of transfer alignment, that is, calibration of the slave INS is based on the master platform, and adopts a reasoning measure to deal with the installing-error-angle. And it is proved by simulation that the transfer alignment can be quickly achieved.

STUDY OF FAST TRANSFER ALIGNMENT ON MOVING BASE

This paper holds that the key to im prove the hitting rate ofair-to-air m issiles is to de- crease the error ofinitialalignm entofthe inertialnavigation system . Therefore, considering thatthe alignm entshould becom pleted w ithin a specified shorttim e, thispaperpresentsthe theory oftransfer alignm ent and the com puting w ay of accuracy in an air-to-air m issile, w here the platform inertial navigation system , orm asterINS, isadopted on aircraft, and thestrap-dow n inertialnavigation sys- tem , or slave INS, isused on m issile. Item phasizes the idea oftransfer alignm ent, thatis, calibra- tion oftheslave INSisbased on the m asterplatform , and adoptsa reasoning m easure to dealw ith the installing-error-angle. And it is proved by sim ulation that the transfer alignm ent can be quickly achieved.