Open AccessThe determination of observation weight in inversion ocean duct using radar clutter
Author(s) -
Zheng Sheng,
Shuibo Huang,
Xiaofeng Zhao
Publication year - 2009
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.58.6627
Subject(s) - clutter , exponential function , inversion (geology) , radar , duct (anatomy) , physics , geology , remote sensing , computer science , computational physics , mathematics , mathematical analysis , telecommunications , seismology , tectonics , medicine , pathology
Observation weight is generally not considered in the works on inversion ocean duct using radar echo. In order to solve the probleman exponential expression similar to that of the electromagnetic wave propagation loss is used to describe change of observation weight with distanceand the standard statistics retrieval algorithm is used to test the effect of retrieval speed and precision caused by different observation weight. Experimental results show that the exponential expression can approprielly describe change of observation weight with distanceand the determination of loss index is of great importance. Reasonable observation weight can eviclently improve the retrieval speed and precisionand the optimal loss index is different for electromagnetic waves of different frequency.