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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2072/9339
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| Title: | Analysis of correlation and total power radiometer front-ends using noise waves |
| Authors: | Corbella Sanahuja, Ignasi
Torres Torres, Francesc
Camps Carmona, Adriano José
Duffo Ubeda, Núria
Vall-llossera Ferran, Mercè
Rautiainen, Kimmo
Martín Neira, Manuel
Colliander, Andreas |
| Other authors: | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
Universitat Politècnica de Catalunya. RSLAB - Grup de Recerca en Teledetecció |
| Keywords: | Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Radiocomunicació i exploració electromagnètica::Teledetecció
Boundary layer (Meteorology)
Microwave measurements
Earth sciences
Calibration
Remote sensing
S-parameters
calibration
microwave measurement
remote sensing
correlation measurement
interferometric aperture synthesis radiometry
microwave radiometry
microwave systems design
mismatch effects
noise analysis
noise characterization
noise waves
polarimetric radiometry
radiometer calibration
radiometer front-ends
total power measurement
Capa límit (Meteorologia)
Microones -- Mesurament
Ciències de la terra
Calibratge
Sensors remots |
| Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| Citation: | Corbella, I.; Torres, F.; Camps, A.; Duffo, N.; Vall-llossera, M.; Rautiainen, K.; Martín-Neira, M.; Colliander, A. Analysis of correlation and total power radiometer front-ends using noise waves. IEEE Transaction on geoscience and remote sensing, 2005, vol. 43, núm. 11, p. 2452-2459.
0196-2892
http://hdl.handle.net/2117/2116 |
| Abstract: | A complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in microwave systems design and takes into account full noise characterization of receivers including mismatch effects. The general formulation is compatible with known total power radiometer analysis and is specially appropriate in correlation radiometers for which the effect of nonideal components, such as input isolators, is analyzed. Along with numerical simulations, simple formulas are given to compute the measured visibility in nonideal conditions. The analysis is validated using experimental results consisting of correlation measurements of four receivers placed inside an anechoic chamber. Good agreement between theoretical predictions and experimental data is observed.
Peer reviewed |
| Appears in Collections: | Documents de recerca
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