Title :
Genetic-Algorithm-Based Parameter Estimation Technique for Fragmenting Radar Meteor Head Echoes
Author :
Roy, Arnab ; Briczinski, Stan J. ; Doherty, John F. ; Mathews, John D.
Author_Institution :
Commun. & Space Sci. Lab., Pennsylvania State Univ., University Park, PA
fDate :
7/1/2009 12:00:00 AM
Abstract :
Meteoroid fragmentation presents a serious problem for Doppler estimation using Fourier transform techniques. Radar returns from multiple closely spaced bodies traveling at nearly identical speeds result in an interference pattern which makes it difficult to estimate properties of individual bodies by traditional techniques. Here, we present a genetic-algorithm-based procedure to determine the properties of the individual fragments, such as relative scattering cross section, speed, and deceleration. The radar meteor observations presented here were made using the Poker Flat (Alaska) Incoherent Scatter Radar operating at 449.3 MHz.
Keywords :
genetic algorithms; meteoroids; meteors; parameter estimation; radar cross-sections; radar interferometry; remote sensing by radar; Doppler estimation; Fourier transform technique; Poker Flat Incoherent Scatter Radar; fragmenting radar meteor head echoes; genetic algorithm; interference pattern; meteor deceleration; meteor speed; meteoroid fragmentation; parameter estimation technique; radar meteor observations; radar returns; relative scattering cross section; Fragmentation; genetic algorithms (GAs); meteor head echoes; parameter estimation;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2009.2013878
