Premium
F region plasma density estimation at Jicamarca using the complex cross‐correlation of orthogonal polarized backscatter fields
Author(s) -
Feng Zhaomei,
Kudeki Erhan,
Woodman Ronald F.,
Chau Jorge,
Milla Marco
Publication year - 2004
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/2003rs002963
Subject(s) - cross correlation , correlation , gaussian , physics , backscatter (email) , radar , phase correlation , phase (matter) , differential phase , computational physics , mathematics , geodesy , optics , statistics , mathematical analysis , geology , geometry , telecommunications , computer science , fourier analysis , short time fourier transform , quantum mechanics , fourier transform , wireless
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.