Title :
On separating aberrant effects from random scattering effects in radio telescopes
Author :
Cogdell, John R. ; Davis, John H.
Author_Institution :
University of Texas, Austin, TX, USA
Abstract :
The effects of random phase errors are distinguished from the effects of large-scale phase errors or aberrations on the gain, main lobe efficiency, and beamwidths of reflector antennas. It is shown that one may determine the reflector tolerance only by separately evaluating the two types of errors, and an experimental procedure for accomplishing this by pattern range or astronomical measurements is described.
Keywords :
Antenna measurements; Apertures; Convolution; Diffraction; Extraterrestrial measurements; Frequency; Instruments; Optical scattering; Phase measurement; Radio astronomy;
Journal_Title :
Proceedings of the IEEE
DOI :
10.1109/PROC.1973.9274
