Utilizing atmospheric attenuation to determine system noise temperature of phased array radars
Abstract
Atmospheric absorption can be used to determine the system noise temperatures of phased array radars. By pointing the beam at a high elevation angle, then at a low elevation angle, the change in the noise level can be used to calculate the system noise temperature. This technique can also be used to explore scan angles where mutual coupling effects may cause the main beam to disappear.
- Publication:
-
Radar 89, Volume 1
- Pub Date:
- 1989
- Bibcode:
- 1989rada....1..195S
- Keywords:
-
- Atmospheric Attenuation;
- Noise Temperature;
- Phased Arrays;
- Radar Measurement;
- Sidelobes;
- Ultrahigh Frequencies;
- Water Vapor;
- Communications and Radar