A Method of Deleting the Outliers in Optical Observations of Artificial Satellites,
Abstract
This article discusses in detail deletion problems associated with outliers in optical observations of artificial satellites. We first of all take complex nonlinear problems, making use of initial orbits and turn them into linear models convenient for digital processing. Use is made of two quantities - equations of time Delta T as well as orbital plane normal deviation Delta S in order to analyze and make determinations. In conjunction with this, a type of L-estimation target function opting for the use of trimmed least squares is put forward to carry out methods associated with deletion of outliers. The breakdown point associated with these methods is 50%. At the same time, computational examples are given. In conjunction with this, discussions are carried out with regard to initial orbit accuracies and deletion criteria.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 10, 1996
- Accession Number
- ADA310601
Entities
People
- Jia Peizhang
- Wu Lianda
Organizations
- National Air and Space Intelligence Center