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Study on the Measureing of the Instantaneous Movements of the Ships Based on SINS

Author: LiuXingBo
Tutor: SunFeng
School: Harbin Engineering University
Course: Precision instruments and machinery
Keywords: AHRS system Heave Sway Vertical swing Instantaneous line movement Filtering
CLC: TP274
Type: Master's thesis
Year: 2009
Downloads: 100
Quote: 4
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Abstract


Many large warships equipped with carrier-based aircraft , carrier aircraft taking off and landing accidents most likely to occur , in order to improve the viability of carrier-based aircraft and security . Instantaneous line able to ship movement information that heave and sway swing longitudinal information, especially in adverse sea conditions the ship instantaneous line motion information is extracted, for the protection of the safety of aircraft carrier landing has a very important significance. In this thesis, the AHRS system instantaneous motion module, which can make full use AHRS system output information on the ship 's heave , sway , swing and other longitudinal studies measuring the instantaneous motion information . This article first heave , sway , swing and other vertical motion information , you define it as the ship instantaneous movement of information, analysis of the instantaneous line ship sailing ship movement and motion information work distinction , the definition of the instantaneous line sports information coordinate Department established a mathematical model of ship instantaneous motion extends the AHRS system functions , the establishment of instantaneous motion modules. According to the mathematical model of ship instantaneous motion , this paper AHRS system is proposed based on the instantaneous motion module solutions are put forward velocity and acceleration filtering filtering method two programs . In this module , different information for different situations , choose a different program , the instantaneous movement of the ship in accordance with program information for solving mathematical orchestration. To solve the filter selection problem, we designed a multiple filter, and the filter module according to the instantaneous movement called for the establishment simulated signal , the filter performance for comparison. Finally taking into account the accuracy and timeliness, the selection filter , the filter is filtering effect is significant, can be used for ship motion calculations. Finally, add the ship instantaneous motion module AHRS participate Dalian sea trials . Tests show that the instantaneous motion modules in complex sea conditions , the ship made ??a variety of conventional course of action , have reached the level of practical application .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system
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