| Title |
Rapid Initial Alignment Method of Inertial Navigation System Using Adaptive Time Delay Compensation |
| DOI |
http://doi.org/10.5370/KIEE.2018.67.3.433 |
| Keywords |
Initial alignment ; Transfer alignment ; Hybrid alignment ; SDINS |
| Abstract |
In this paper, a SDINS(strapdown inertial navigation system) rapid initial alignment technique with adaptive time delay compensation is proposed. The proposed method consists of two steps. In first step, misalignment and data latency are estimated by conducting pre-transfer alignment. Then, hybrid alignment is designed to rapidly find the misalignment changes induced by pyro-shock. To improve the performance of hybrid alignment, adaptive time delay compensation method is suggested. We verify the performance improvement of the proposed alignment scheme comparing with the conventional transfer alignment method by van test. The test result shows that the proposed alignment technique improves alignment performance. |