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P.G. Ditmar

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149 records found

Authored

Effect of high frequency temporal aliasing on GOCE gravity field solution
Conference paper (2004) - P.G. Ditmar, SC Han, C Shum

How to handle colored noise in large least-squares problems in the presence of data gaps?
Conference paper (2003) - R. Klees, P.G. Ditmar

Numerical techniques for large least-squares problems with applications to GOCE
Conference paper (2003) - R. Klees, P.G. Ditmar, J Kusche

On the joint inversion of SGG and SST data from the GOCE mission
Journal article (2003) - P.G. Ditmar, P.N.A.M. Visser, R. Klees

Fast spherical harmonic synthesis and co-synthesis with applications in gravity field modeling
Conference paper (2003) - P.G. Ditmar, R. Klees, F Kostenko

Global gravity field analysis from satellite accelerations

Optimal data weighting in modeling the earth's gravity field on the basis of satellite accelerations
Conference paper (2003) - P.G. Ditmar

Inversion of satellite gravity gradiometry data: a problem with 100.000.000 equations and 100.000 unkowns
Conference paper (2003) - P.G. Ditmar, R. Klees, F Kostenko

Fast and accurate computation of spherical harmonic coefficients from satellite gravity gradiometry data
Journal article (2003) - P.G. Ditmar, R. Klees, F Kostenko

How to handle colored observations noise in large least-squares problems
Journal article (2003) - R. Klees, P.G. Ditmar, PMT Broersen

Computation of pherical harmonic coefficients from satellite gravity gradiometry data: regularization issues
Journal article (2003) - P.G. Ditmar, J Kusche, R. Klees

On the joint inversion of SGG and SST data from the GOCE mission
Abstract (2002) - P.G. Ditmar, P.N.A.M. Visser, R. Klees

Fast and accurate computation of spherical harmonic coefficients from satellite gravity gradiometry data
Journal article (2002) - P.G. Ditmar, R. Klees, F Kostenko

Gravity field recovery with the gravity field and steady-state ocean circulation explorer (GOCE)
Report (2002) - P.G. Ditmar, R. Klees

A Method to Compute the Earth's Gravity Field from SGG/SST data to be acquired by the GOCE Satillite
Book (2002) - P.G. Ditmar, R. Klees

Fast and accurate computation of spherical harmonic coefficients from satellite gravity gradiometry data
Journal article (2002) - P.G. Ditmar, R. Klees, F Kostenko

Finding the shape of a local heterogeneity by non-linear inversion with constraints
Journal article (2002) - P.G. Ditmar

How to handle colored observation noise in large-scale least-squares problems
Journal article (2002) - R. Klees, P.G. Ditmar, PMT Broersen

Time-wise determination of the earth gravity field from SGG observations
Conference paper (2002) - P.G. Ditmar, R. Klees

The performance of the time-wise semi-analytical inversion of satellite gravity gradients
Book chapter (2002) - R. Klees, P.G. Ditmar