Applying spectral leakage corrections to gravity field determination from satellite tracking data

Details Applying spectral leakage corrections to gravity field determination from satellite tracking data Applying spectral leakage corrections to gravity field determination from satellite tracking data

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010geoji.181.1459g&link_type=abstract

Geophysical Journal International, Volume 181, Issue 3, pp. 1459-1472.

Astronomy and Astrophysics

Astronomy

Inverse Theory, Satellite Geodesy

Scientific paper

Uneven data coverage might lead to biases in solutions of inverse problems expressed in a truncated expansion of a complete and infinite set of basis functions. Spectral leakage corrections exist, consisting of a specific weight matrix for the data, and in this paper, these corrections are applied to the problem of determining the gravity field of a planetary body from satellite tracking data. By means of simulations of global gravity field determination in a fully dynamic setting, it is shown that the leakage corrections lead to solutions with less spurious power in the higher degrees, and solutions that are generally closer to their true values, when compared to standard least-squares solutions. An example for flyby geometries is also considered. They form a special case, where a lower degree gravity field is estimated from a data set that is extremely limited. It is shown here how spectral leakage corrections might help to get better estimates of separate coefficients from combined data sets, provided of course that the data are sensitive to their induced perturbations.

Affiliated with

Also associated with

No associations

Rating

Applying spectral leakage corrections to gravity field determination from satellite tracking data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Applying spectral leakage corrections to gravity field determination from satellite tracking data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Applying spectral leakage corrections to gravity field determination from satellite tracking data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1830085