Attitude and Oribit Estimation Using Stars and Landmarks
- 1 March 1975
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Aerospace and Electronic Systems
- Vol. AES-11 (2) , 195-203
- https://doi.org/10.1109/taes.1975.308058
Abstract
An extended Kalman filter is used to process line-of-sight measurements to stars and known landmarks providing a statistical indication of performance in estimating spacecraft attitude, orbital ephemeris, and the bias drift of a set of three strapdown gyros. The landmark measurements were assumed to have been taken from the imagery of an Earth-observing multispectral scanner. It is shown that filtering of these noisy measurements results in highly accurate estimates of the above parameters. Results are given showing the sensitivity of performance to various system parameters such as star tracker accuracy, errors in the knowledge of landmark position, and number of stars and landmarks processed.Keywords
This publication has 1 reference indexed in Scilit:
- Star Scanner Attitude Determination for the OSO-7 SpacecraftJournal of Spacecraft and Rockets, 1973