Citation
Abstract
The Weather Project forms part of an overall Radio Systems Development Project which seeks to optimize the spacecraft-to-ground communications link. Statistical correlations of weather and communications capability at X- and K-bands are needed to provide practical predictions of link performance. Thus the objective of the Weather Project is the statistical prediction of the performance of the DSN at X-band and, in the future, at K-band. A previous article discussed the general approach of the Weather Project, the measurements, calibrations, equipment, and methods. Problems encountered were also discussed as well as proposed future work. This article reports on a preliminary analysis of the Weather Project data for calendar year 1971. These results are presented in tabular form. Cumulative frequency distributions of percentages of excess system temperature are tabulated as a function of time (whole year and quarterly periods) and of antenna elevation angle (four elevation ranges and all elevation angles). Averages, standard deviations, and confidence limits are tabulated, and the experimental results are compared with the data from a theoretical study based on estimated and observed cloud cover effects.
Details
- Volume
- XI
- Published
- October 15, 1972
- Pages
- 111–120
- File Size
- 563.5 KB