|Table of Contents|

Application of Kalman Filtering in GPS-guided Rocket Projectiles

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2010年02期
Page:
157-160
Research Field:
Publishing date:

Info

Title:
Application of Kalman Filtering in GPS-guided Rocket Projectiles
Author(s):
DING Chuan-bingWANG Liang-mingCHANG Si-jiangHAO TingYANG Rong-jun
School of Power Engineering,NUST,Nanjing 210094,China
Keywords:
roket projectiles Kalman filtering global positioning system dynamic positioning
PACS:
TJ415
DOI:
-
Abstract:
To reduce the error of trajectory measured by GPS directly,the application of extended Kalman filter is proposed for trajectory measurement.Based on the trajectory model of rocket projectiles and GPS error model,the state equation and measurement equation which takes the pseudo range as observation are both established.The filter formulations are deduced and analyzed.The data of GPS kinematical positioning are also filtered.The theoretical analysis and simulation results indicate that the measurement errors of position and velocity of GPS are random and large in amplitude.The estimation error of position and velocity on trajectory can be reduced by 1/3 and 1/4 of observation error respectively by using Kalman filtering and the convergence speed can be fastened.

References:

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Memo

Memo:
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Last Update: 2010-04-30