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http://dx.doi.org/10.5139/JKSAS.2009.37.6.545

A Study on INS's initial attitude error reducing methods at navigation mode entry in vibration environment  

Lee, Youn-Seon (국방과학연구소 3본부4부)
Lee, Sang-Jeong (충남대학교 전자공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.6, 2009 , pp. 545-550 More about this Journal
Abstract
Generally, the smoothing pre-filter of sensor's raw measurement(accelerometer and gyroscope) is used for INS's fast alignment. When the pre-filter is abruptly removed at Navigation-mode entry in vibration environment, INS's initial attitude error can be largely generated. So that we propose initial attitude error reducing methods(monotone increasing of cutoff-frequency, real-time attitude estimation), these are proved by simulation.
Keywords
INS; Alignment; Pre-filter;
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Times Cited By KSCI : 1  (Citation Analysis)
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