Jc. Fang et Dj. Wan, A FAST INITIAL ALIGNMENT METHOD FOR STRAPDOWN INERTIAL NAVIGATION SYSTEM ON STATIONARY BASE, IEEE transactions on aerospace and electronic systems, 32(4), 1996, pp. 1501-1505
In this paper a strapdown inertial navigation system (SINS) error mode
l is introduced, and the observability of the SINS error model is anal
yzed Then, on the basis of this SINS error model and the analysis of c
omputer simulation results, a fast estimation method of the azimuth er
ror Phi(D) is proposed for the initial alignment of SINS on stationary
base. Consequently, the time of initial alignment is reduced greatly.
The computer simulation results illustrate the efficiency of this fas
t initial alignment method.