NDLI: Polarimetric extraction technique of atmospheric targets based on double sLdr and morphology

Content Provider	IEEE Xplore Digital Library
Author	Mi He Yongjian Nian Xuesong Wang Yongzhen Li Shunping Xiao
Copyright Year	2011
Description	Author affiliation: School of Electronic Science and Engineering, National University of Defense Technology, Changsha 410073, China (Mi He; Yongjian Nian; Xuesong Wang; Yongzhen Li; Shunping Xiao)
Abstract	An extraction method of the polarimetric atmospheric target has been proposed to obtain most useful information with noise, clutter and artificial signals as less as possible for dual-orthogonal frequency modulation continuous wave (FMCW) polarimetric radar. The signal processing is described for dual-orthogonal FMCW polarimetric radar. The polarimetric range-Doppler spectra of precipitation obtained in a single sweep time are calibrated by radar constant calibration and reciprocity modification. The mask matrix for filtering is constructed based on the double spectral linear depolarization ratios (sLdr) and mathematical morphology methods. The precipitation atmospheric targets are extracted successfully by multiplying the mask matrix with the measured range-Doppler spectra by the polarimetric agile radar S- And X-band (PARSAX) radar. The proposed technique keeps more atmospheric targets and suppresses more clutter, noise and artificial signals compared with the original data and the data after double sLdr filtering combined with noise clipping.
Starting Page	3245
Ending Page	3248
File Size	314498
Page Count	4
File Format	PDF
ISBN	9781457710032
ISSN	21537003
e-ISBN	9781457710056
DOI	10.1109/IGARSS.2011.6049911
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-07-24
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise Clutter Doppler radar Radar polarimetry Doppler effect Atmospheric measurements Atmospheric target extraction Spectral linear depolarization ratios (sLdr) Simultaneous measurement Clutter suppression
Content Type	Text
Resource Type	Article

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