Research On Pre-Launch Fast Self-Calibration And Compensation Methods For Inertial Platform

To improve the accuracy of satellite and missile precision has been continuouspursued and explora tion targets of satellite space．Inertia l components is animporta nt control device , it influenced directly to accuracy of the vehicle controland na viga tion , and tha t the pla tform drift error seriously affected precision．Byuse the self-ca libra tion and error compensa tion techniq ues to pla tform, the practica laccuracy will be effectively promoted, which mea ns so grea t economic va lues andmilita ry significa nc e tha t is universa lly concerned in-a nd-abroad．First,Autonomous calibration method of pla tform is studied, In considera tionof the specific cond itions and applica tion environment. Proposed resea rch on prelaunch fast self-ca libra tion and compensa tion methods for inertia l pla tform.Second,The effects on sta bility and accuracy in self-ca libra tion caused bydifferent drift error coefficients are particula rly discussed,designed drift errormodel and the va lid ity of the method of self-ca libra tion for the pla tform undersma ll-a ngle cond ition is theoretica lly verified．A specific scheme of self-ca libra tio nis given as well as its results and accuracy．Third,By studying the testing methods of multi-loca tion, selected the testingmethods of four loca tion. In considera tion of the actua l req uirements and theva lid ity of self-ca libra tion under sma ll-a ngle cond ition,designed the testingmethods of two loca tion.At last,Through the experimenta l design and analysis,verified the sma ll-a nglesitua tion pla tform fast calibration has high confidence．the method of compensa tio nto pla tform is analyzed,and also the compensa tion is given．This method caneffectively sho rten the measurement of time .