F region plasma density estimation at Jicamarca using the complex cross-correlation of orthogonal polarized backscatter fields

doi:doi:10.1029/2003RS002963

Abstract

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Abstract

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

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.

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.

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