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RADIO SCIENCE,
VOL. 39,
RS3015,
doi:10.1029/2003RS002963,
2004
F region plasma density estimation at Jicamarca using the complex cross-correlation of orthogonal polarized backscatter fields
Zhaomei Feng
Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
Erhan Kudeki
Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
Ronald F. Woodman
Radio Observatorio de Jicamarca, Instituto Geofísico del Perú, Lima, Peru
Jorge Chau
Radio Observatorio de Jicamarca, Instituto Geofísico del Perú, Lima, Peru
Marco Milla
Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
Abstract
The differential-phase method for Jicamarca F region density measurements has been modified to fit the real and imaginary components of the cross-correlation of orthogonally
polarized radar returns. The original method [
Kudeki et al., 2003
;
Feng et al., 2003
] based on fitting the cross-correlation phase could only make use of correlation data from lower F region heights since the phase noise in low-SNR upper F region returns is typically non-Gaussian. However, upper F region correlation data become useful in the modified method since the fluctuations in real and imaginary parts of cross-correlation
remain Gaussian even under low-SNR conditions.
Received 19
August
2003;
accepted 15
April
2004;
published 16
June
2004.
Keywords: plasma density;
complex cross-correlation;
differential-phase method.
Index Terms: 2415 Ionosphere: Equatorial ionosphere; 2467 Ionosphere: Plasma temperature and density; 2494 Ionosphere: Instruments and techniques.
Subscriber Access to Full Article (Nonsubscribers may purchase for $9.00, Includes print PDF, file size: 407290 bytes)
Citation: Feng, Z., E. Kudeki, R. F. Woodman, J. Chau, and M. Milla
(2004),
F region plasma density estimation at Jicamarca using the complex cross-correlation of orthogonal polarized backscatter fields,
Radio Sci.,
39,
RS3015,
doi:10.1029/2003RS002963.
Copyright 2004 by the American Geophysical Union.
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