Study on Fast Initial Alignment of Single-Axis Laser Inertial Navigation System Based on the Analysis of Observability
Abstract：In the single-axis laser inertial navigation system, analyze the observability of system with the way of SVD. The analysis indi- cates that the observability of azimuth misalignment angles is poorer compared with the horizontal misalignment angles which leads to the low estimate speed. To solve this question, adopt the steady state estimate value of horizontal misalignment angles to estimate the azimuth mis- alignment angles. The simulation results show that the way can enhance the estimate speed of azimuth misalignment effectively.
Keywords：single-axis laser inertial navigation systeminitial alignmentobservabilityKalman filter
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 42-43,89 )