On formation mechanism and influence characteristic of initial state error in disturbing gravity field

In order to determine the influence regularity of the deviations of shutdown state and placement affected by the launch initial state error (LISE), this paper analyzes the LISE impacting on placement deviation based on accurate kinetic equation in launch inertial coordinate system (LICS) and launch...

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Bibliographic Details
Main Authors: Zheng, Xu, Yang, Yi-dai, Gao, Chang-sheng, Jing, Wu-xing
Format: Conference Proceeding
Language:English
Subjects:
Acceleration
Angular velocity
Azimuth
Deviation
Disturbing gravity
Earth
Errors
Gravitation
Gravitational fields
Initial orientation error
Initial positioning error
Kinetic equation
Kinetic theory
Launches
Mathematical model
Measuring instruments
Meters
Missiles
Placement
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Summary:In order to determine the influence regularity of the deviations of shutdown state and placement affected by the launch initial state error (LISE), this paper analyzes the LISE impacting on placement deviation based on accurate kinetic equation in launch inertial coordinate system (LICS) and launch coordinate system (LCS). The LISE can be summarized as the initial positioning error (IPE), the initial orientation error (IOE), the initial velocity error (IVE) and the initial gravitational calculation error (IGCE), whose formation mechanisms are elaborated in disturbing gravity field. The IPE, IOE, IVE and IGCE are respectively simulated to obtain the deviations of shutdown state and placement under the condition of different launch azimuths and different ranges. Simulation results show that the placement deviation of the initial positioning and orientation error (IPOE), IVE, the initial Earth's disturbing gravity (IEDG) and the initial normal gravitational calculation error (INGCE) can respectively at most reach the magnitudes of about four kilometers, one hundred meters, five hundred meters and tens of meters.
ISSN:2161-2927
1934-1768
DOI:10.1109/ChiCC.2016.7554184