Citation
Abstract
The conical-scan tracking system described by Ohlson and Reid in JPL Technical Report 32-1605 is analyzed as a sampled-data feedback control system. Tracking mode equations for both spacecraft signals and radio source signals are developed. In the case of spacecraft tracking, a rationale is presented for selection of parameters which minimizes the sum of the required scan radius and three times the RMS error jitter. With this criterion, reasonable system performance can be obtained with signals down to receiver threshold. For radio source tracking, the RMS error jitter is negligible, and a set of system parameters is recommended which allows conservative operation of the system.
Details
- Volume
- 42-41
- Published
- October 15, 1977
- Pages
- 86–100
- File Size
- 1.1 MB