Citation
Abstract
A need for an accurate but inexpensive method for measuring and evaluating time delays of large ground antennas for VLBI applications motivated the development of the collimation tower technique described in this article. This article discusses supporting analytical work which was performed primarily to verify time delay measurement results obtained for a large antenna when the transmitter was at a collimation distance of 1/25 of the usual far-field criterion. Comparisons of theoretical and experimental results are also given.
Details
- Volume
- 42-72
- Published
- February 15, 1983
- Pages
- 20–29
- File Size
- 644.7 KB