Abstract:

In view of the difference between the Strapdown Inertial Navigation System(SINS) guidance instrument error parameters in the ground experiment environment and in the flight environment, the approach to compensate SINS guidance instrument errors based on tracking data and telemetry data is developed. Firstly the error models are established. Secondly the improved latent root estimation(LRE) is applied in order to overcome the multicolinearities of the error models and estimate the error parameters. Thus the error models are determined based on the estimated error parameters.

Key words: SINS,  , guidance , instrument , error , modeling,  , latent , root , estimation,  , error , compensation,  , telemetry , data,  , tracking , data