SIMULATION OF GRAVITY GRADIENT DATA AND ITS
APPLICATIONS ON INERTIAL NAVIGATION
1)School of Geodesy and Geomatics，Wuhan University，Wuhan 430079
Abstract The principle and algorithm of gravity gradient calculated by EGM and DTM data are analyzed，and The numerical of gravity gradient values are calculated by EGM2008 and SRTM3.Comparison of the correlation between DTM data and gravity gradient component verifies the reliability of gravity gradient data calculation by DTM data.The principle and methods of gravity gradient aided inertial navigation are discussed，and its necessity and practicability are also verified by comparing the position errors generated by accelerometer bias and gravity anomaly changes separately of a simulated trajectory results.
Key words ：
EGM
DTM
gravity gradient
inertial navigation
position error
Received: 10 January 2014
Published: 26 September 2014
Cite this article:
Zhao Wei,Wang Zhengtao,Ma Qiang. SIMULATION OF GRAVITY GRADIENT DATA AND ITS
APPLICATIONS ON INERTIAL NAVIGATION[J]. jgg, 2014, 34(5): 134-138.
Zhao Wei,Wang Zhengtao,Ma Qiang. SIMULATION OF GRAVITY GRADIENT DATA AND ITS
APPLICATIONS ON INERTIAL NAVIGATION[J]. jgg, 2014, 34(5): 134-138.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I5/134
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