Conventional gyrocompass alignment methods are based on relatively small azimuth misalignment
angles. However, a marine strapdown inertial navigation system may face large azimuth misalignment angle
caused by a failed coarse alignment algorithm. This paper provides a novel gyrocompass alignment method to
solve the problem. Effects of system parameters are analyzed and the proper scenario of parameter switch based
on the classic control theories is derived. Test results show that compared with the conventional methods, our
method can accomplish the initial alignment quickly and accurately under large azimuth misalignment angle.
WEI Feng-mei1,2* (魏凤梅), ZHANG Jian-pei1 (张健沛), YANG Jing1 (杨 静),JIANG Shu-qiang3 (姜述强), XIE Song-lin3,4 (谢松霖)
. A Novel Gyrocompass Alignment Method Under Large Azimuth Misalignment Angle[J]. Journal of Shanghai Jiaotong University(Science), 2015
, 20(5)
: 558
-564
.
DOI: 10.1007/s12204-015-1617-8
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