Open AccessMicro‐motion of a moving train observed by a Ka‐band interferometric radar
Author(s) -
Zhai Wenshuai,
Zhang Yunhua,
Yang Qingshan,
Shi Xiaojin
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.0406
Subject(s) - radar , interferometry , ka band , train , radar imaging , bandwidth (computing) , remote sensing , geology , geodesy , physics , optics , computer science , telecommunications , geography , cartography
A moving train was imaged by a Ka‐band interferometric (In) radar of 2 GHz bandwidth working at the dechirping model. Two radar images from two channels as well as their In image were obtained after estimating the speed and direction of the train. The plots of In phases (InPhes) along the train exhibits periodic fluctuations, which are resulted from the back and forth motions of both locomotive and other compartments when the trains are moving ahead, and this can be attributed to the micro‐motion (m‐M) of the train. As far as it is known, this is the first time to experimentally demonstrate m‐M detection through InPhes.