Radio Astronomy Measurements at VHF and Microwaves
- 1 January 1958
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Proceedings of the IRE
- Vol. 46 (1) , 325-333
- https://doi.org/10.1109/JRPROC.1958.286794
Abstract
Radio astronomy measurements of atmospheric absorption, refraction, and scintillation, taken during the summer of 1956, and the spring of 1957, were made at 3.2 cm and 8.7 mm with the Sun as the source, and at 218 mc with solar energy and radiation from Cassiopeia A. Large tropospheric scintillations at angles below 3° made elevation accuracy difficult in the 8.7-mm and 3.2-cm bands. Refraction at 218 mc was greater than at the microwave wavelengths. Scintillations at 218 mc were present during periods of auroral activity. The information obtained has been useful in assessing radar angle-of-elevation accuracy and demonstrates the use of the sun and other celestial bodies as radiation sources for antenna pattern measurements.Keywords
This publication has 3 references indexed in Scilit:
- Some Experiments on the Scintillation of Stars and PlanetsMonthly Notices of the Royal Astronomical Society, 1952
- A Diffraction Theory of the Scintillation of Stars on Optical and Radio Wave-LengthsMonthly Notices of the Royal Astronomical Society, 1951
- Radio-Frequency Radiation from the Quiet SunAustralian Journal of Chemistry, 1950