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Research of Vehicle Movement Adaptability for Marine Inertial Navigation System

Author: RongWenZuo
Tutor: ZhaoLin
School: Harbin Engineering University
Course: Control Theory and Control Engineering
Keywords: Inertial Navigation System Adaptation to exercise Initial alignment Gyro drift Comprehensive calibration
CLC: U666.12
Type: Master's thesis
Year: 2010
Downloads: 146
Quote: 4
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Abstract


Ship inertial navigation system with independent and strong, able to continuously provide high-precision navigation and positioning time advantage . In our implementation , the maximum degree of reduction error sources on INS speed, position and attitude information such as the impact of inertial navigation system set up as the initial alignment , gyro drift and integrated calibration and other work . These ways of working conditions due to destruction of Schuler adjustment , the acceleration due to interference caused by presence of dynamic error , thus affecting the alignment or drift measurement precision , so started the marine carrier INS motion adaptive research on inertial navigation system program analysis, improvement , inertial navigation systems for improving environmental adaptability has important practical value. Subject to platform inertial navigation system as the research background, first of all, through the Principle and Error Analysis introduces security inertial navigation system to work in several works, including the gyro drift , initial alignment and integrated calibration by adjusting the conditions Schuler analysis , the presence of inertial navigation system proposed motion vector adaptability . Inertial navigation systems on the level of precision of the alignment and orientation based on the analysis , to carry out the alignment of the existing anti-interference characteristics of network parameters analysis, design of the network based on Visual C alignment parameter optimization algorithms and engineering software , the initial Alignment network to optimize the design , through computer matching algorithm and simulation confirmed the effectiveness of design ideas . Indexing method for gyro drift measurement principle and subject movement interference error characteristics were studied and simulation analysis , through the drift measurement loop damping network improvements designed to improve the disturbed situation gyro drift measurement accuracy. Detailed analysis of the two schools, three schools and a little bit of the basic principles of the school , pointed out the impact of the key sources of error calibration accuracy , and the presence of an external reference error and the carrier mobility in case of comprehensive calibration program conducted a comprehensive analysis and computer simulation and to obtain a large number of quantitative analysis .

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CLC: > Transportation > Waterway transport > Marine Engineering > Navigation equipment, acoustic equipment > Navigation equipment > Inertial navigation system
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