Title :
Primary study of inverse radiation noise in millimeter wave radiometer
Author_Institution :
Dept. of Elec .Sys., Nanjing Univ. of Sci. & Techn., China
Abstract :
A radiometer inverse radiation noise is becoming extruded in millimeter wave radiometer precise measurement, because it impacts the calibration precision. This paper presents the characteristic of a radiometer inverse radiation noise, and gives its equivalent temperature calculation. The influence of a inverse radiation noise on radiometer calibration is analyzed and two isothermal methods to eliminate this error are discussed in detail.
Keywords :
calibration; millimetre wave detectors; noise; radiometers; equivalent temperature calculation; inverse radiation noise; isothermal methods; millimeter wave radiometer; radiometer calibration; Apertures; Calibration; Millimeter wave measurements; Millimeter wave technology; Noise figure; Noise measurement; Radiometry; Signal to noise ratio; Temperature; Working environment noise;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606608
