DocumentCode
807855
Title
Nonlinearity characterisation of microwave detectors for radiometer applications
Author
Närhi, T.
Author_Institution
RF Syst. Div., Eur. Space Res. & Technol. Centre, Noordwijk, Netherlands
Volume
32
Issue
3
fYear
1996
fDate
2/1/1996 12:00:00 AM
Firstpage
224
Lastpage
225
Abstract
The accuracy of microwave radiometers is affected by the deviation of the detector from the ideal square-law behaviour. A method is presented for determining the error caused by higher order nonlinearities, based on the experimental characterisation of the nonlinearities with a two-tone test. In actual operation with Gaussian noise as the input signal, the error caused by higher order nonlinearities is found to be greater than that with sinusoidal input signal
Keywords
error analysis; measurement errors; microwave detectors; radiometers; Gaussian noise input signal; experimental characterisation; higher order nonlinearities; ideal square-law behaviour deviation; microwave detectors; microwave radiometers; nonlinearity characterisation; radiometer applications; two-tone test;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19960109
Filename
490815
Link To Document