Title :
Tracking atmospheric ducts using radar clutter: evaporation duct tracking using kalman filters
Author :
Yardim, Caglar ; Gerstoft, Peter ; Hodgkiss, William S.
Author_Institution :
Univ. of California, San Diego
Abstract :
This paper addresses the problem of tracking evaporation ducts in marine environments. The method tracks the evolution of the range and height-dependent index of refraction using the radar sea clutter. A split-step fast Fourier transform (FFT) based parabolic equation (PE) approximation to the wave equation is used to compute the clutter return in complex environments with varying index of refraction. Tracking is obtained using an extended Kalman filter (EKF).
Keywords :
Kalman filters; ducts; fast Fourier transforms; nonlinear filters; parabolic equations; radar clutter; radar tracking; wave equations; FFT; atmospheric duct tracking; evaporation duct tracking; extended Kalman filter; height-dependent index; marine environments; parabolic equation approximation; radar sea clutter; split-step fast Fourier transform; wave equation; Atmospheric waves; Ducts; Electromagnetic refraction; Electromagnetic waveguides; Equations; Radar clutter; Radar tracking; Sea measurements; Sea surface; Vectors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2007 IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0877-1
Electronic_ISBN :
978-1-4244-0878-8
DOI :
10.1109/APS.2007.4396570
