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Gravity Gradiometer Data Reduction


Glaser, Robert James (1973) Gravity Gradiometer Data Reduction. Engineer's thesis, California Institute of Technology. doi:10.7907/5VY1-7Z44.


Two existing gravity gradiometers are discussed and a single signal equation is developed for both instruments. Equations are derived for calculating the gradiometer signal from known spherical harmonic coefficients. The result is a signal equation in the same form as the harmonic expansion but with a "gradiometer" polynomial. Next, an integral curvefit procedure is developed for calculating the harmonic coefficients of the gravitational field from known gradiometer data. The procedure only requires calculation of a theoretical observation matrix, thus the orbit determination part of the algorithm is the rate determining step. This increases in cost as the fourth power of the maximum harmonic degree considered. Calculations using parts of the algorithm are discussed and procedures for dealing with error sources are described. Finally, a brief description of a complete gradiometer data reduction program is presented.

Item Type:Thesis (Engineer's thesis)
Subject Keywords:Aeronautics
Degree Grantor:California Institute of Technology
Division:Engineering and Applied Science
Major Option:Aeronautics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • Stewart, Homer Joseph
Thesis Committee:
  • Stewart, Homer Joseph (chair)
  • Coles, Donald Earl
  • Dergarabedian, Paul
Defense Date:18 September 1972
Funding AgencyGrant Number
Record Number:CaltechTHESIS:08272010-080449842
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6011
Deposited By: Benjamin Perez
Deposited On:27 Aug 2010 21:42
Last Modified:20 Dec 2019 19:33

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