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Study on Autonomous Restoration of Navigation for Launch Vehicle During Active Phase

Author: ZhongYongJian
Tutor: JingWuXing
School: Harbin Institute of Technology
Course: Aircraft design
Keywords: Launch Vehicle Computer fault Navigation Independent Recovery Ballistic Design
CLC: TJ765
Type: Master's thesis
Year: 2012
Downloads: 13
Quote: 0
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Abstract


This paper is to study navigation independent recovery after on-orbit computerrestarted on the background of launch vehicle happen a short time for fault duringactive phase. The influence to launch vehicle’s flight of on-orbit computer fault isstudied, and this paper put forward two methods to recover the navigationinformation, one method is based on interpolation, the other is based on thedynamics.The main research is listed as below:First, the launch vehicle is investigated trajectory design in a given emissionand target condition. Established the carrier’s motion model in the launchcoordinate system, designed the flight procedure and the calculation method oflaunch condition. Did the trajectory simulation, and analyzed the motion law of thecarrier.Six degree of freedom simulation is designed. Established the carrier of thestrapdown inertial navigation model, guidance and control system model andprogramming a simulation. According to the simulation results, analyzed the causesof error, and analyzed the precision of navigation, the performance of the guidanceand control system. Analysis of the carrier in the computer fault movement duringthe calculation. The influence of different treatments after the restart of on-orbitcomputer on the carrier flight and its carrying the influence of precision isanalyzed.Finally, on-orbit computer fault and the independent recovery of navigation isstudied. In computer fault inertial measurement data during the recovery, putforward based on the mathematical interpolation method and dynamic method, andanalyzed each method of characteristics and the information recovery precision bysimulation.

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CLC: > Industrial Technology > Arms industry > Rockets, missiles > Missile > Guidance and Control
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