Citation
Abstract
The alidades of the beam-waveguide (BWG) antennas are mounted on wheels that rotate around an imperfect track. The uneven azimuth track causes antenna deformations, which reduce pointing accuracy. The pointing errors caused by the track irregularities are repeatable and can therefore be calibrated. The efiects of the irregularities in the azimuth track can continually be corrected for using a look-up table created by the interface presented here. The table is then fed into the antenna monitor and control (along with the systematic error model and predicts) to modify the pointing commands. This article describes the stages of processing that the inclinometer data undergo, including the verification of repeatability, smoothing, slow trend removal, resampling, and adjustment to a standard format. From the processed data, the interface creates the look-up table in a simple and straightforward manner.
Details
- Volume
- 42-143
- Published
- November 15, 2000
- Pages
- 1–17
- File Size
- 1.2 MB