Mooring alignment for marine SINS using the digital filter

被引：64

作者：

Sun, Feng ^{[1
]}

Sun, Wei ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Automat, Harbin, Heilongjiang, Peoples R China

来源：

MEASUREMENT | 2010年 / 43卷 / 10期

基金：

美国国家科学基金会;

关键词：

SINS; Initial alignment; Digital filter; Average algorithm;

D O I：

10.1016/j.measurement.2010.08.008

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strapdown inertial navigation system (SINS) is presently used in several applications related to aerospace system and marine navigation. The accurate initial attitude is essential to ensure the precise determination of the position and attitude of the moving platform, which is usually calculated using initial alignment. When the vehicle is moored, the SINS inevitably experience disturbing motion. The method of ground coarse alignment, which is based on the assumption that SINS is on a stationary carrier with limited vibration, therefore cannot be used to perform the SINS mooring alignment. In this paper, a novel method processing the gyro and accelerometer measurements with infinite impulse response (IIR) digital low-pass filter to remove the high frequency noise is investigated for marine mooring alignment. Its algorithmic principle is described in details. The results obtained from both simulation and mooring experiment show that the attitude determined by this novel method can meet the accurate alignment. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1489 / 1494

页数：6

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