Open AccessIdentification and Removal of Ground Echoes and Anomalous Propagation Using the Characteristics of Radar Echoes
Author(s) -
Yo-Han Cho,
GyuWon Lee,
Kyung-Eak Kim,
Isztar Zawadzki
Publication year - 2006
Publication title -
journal of atmospheric and oceanic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.774
H-Index - 124
eISSN - 1520-0426
pISSN - 0739-0572
DOI - 10.1175/jtech1913.1
Subject(s) - radar , remote sensing , echo (communications protocol) , identification (biology) , elevation angle , geology , polarimetry , function (biology) , elevation (ballistics) , computer science , fuzzy logic , physics , optics , telecommunications , artificial intelligence , scattering , computer network , botany , astronomy , azimuth , evolutionary biology , biology
This paper explores the removal of normal ground echoes (GREs) and anomalous propagation (AP) in ground-based radars using a fuzzy logic approach. Membership functions and their weights are derived from the characteristics of radar echoes as a function of radar reflectivity. The dependence on echo intensity is shown to significantly improve the proper identification of GRE/AP. In addition, the proposed method has a better performance at lower elevation angles. The overall performance is comparable with that from a polarimetric approach and can thus be easily implemented in operational radars.