Citation
Abstract
The objective of this study is to investigate the feasibility of a new pointing (position loop) controller for the NASA-JPL Deep Space Network antennas using the Disturbance Accommodating Control (DAC) theory. A model that includes state dependent disturbances was developed, and an example demonstrating the noise estimator is presented as an initial phase in the controller design. The goal is to improve pointing accuracy by the removal of the systematic errors caused by the antenna misalignment as weil as sensor noise and random wind and thermal disturbances. Preliminary simulation results show that the DAC technique is successful in both cancelling the imposed errors and maintaining an optimal control policy.
Details
- Volume
- 42-93
- Published
- May 15, 1988
- Pages
- 27–44
- File Size
- 696.4 KB