The calibration target for FY-3 space-borne microwave humidity sounder

Author

Cheng, C.Y. ; Nian, F. ; Chen, T. ; Yang, C.T. ; Chen, Y.M. ; Chen, J.L.

Author_Institution

Beijing Inst. of Radio Metrol. & Meas., Beijing, China

fYear

2012

fDate

1-6 July 2012

Firstpage

34

Lastpage

35

Abstract

A general introduction is presented in this digest to describe configuration, operational theory and technical specifications of the calibration target for FY-3 space-borne microwave humidity sounder of china. The target with the temperature-adjusted function based on PID controller can provide the brightness temperature output form 90K~350K and its uncertainty is 1.2K~1.6K (k=2) in 75GHz~220GHz. The traceability for brightness temperature of the calibration target is achieved by calibrating sensors embedded inside the calibration target and by emissivity international comparison. The experimental results and further analysis are also provided in this digest.

Keywords

artificial satellites; brightness; calibration; humidity measurement; humidity sensors; meteorological instruments; microwave devices; microwave measurement; three-term control; China; FY-3 space-borne microwave humidity sounder; PID controller; brightness temperature output form; calibrating sensor; calibration target; emissivity international comparison; frequency 75 GHz to 220 GHz; operational theory; technical specification; temperature 1.2 K to 1.6 K; temperature 90 K to 350 K; temperature-adjusted function; Brightness temperature; Calibration; Microwave radiometry; Microwave theory and techniques; Standards; Temperature measurement; Temperature sensors; FY-3; brightness temperature; emissivity; microwave humidity sounder; radiometer calibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM), 2012 Conference on

Conference_Location

Washington, DC

ISSN

0589-1485

Print_ISBN

978-1-4673-0439-9

Type

conf

DOI

10.1109/CPEM.2012.6250645

Filename

6250645