Linear depolarization ratio: Difference between revisions
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<div class="definition"><div class="short_definition">(Abbreviated LDR.) The ratio of the [[power]] received in the [[orthogonal]], or cross-polarized, channel to that received in the transmission, or copolarized, channel of a [[dual- channel radar]], when a linearly polarized [[signal]] is transmitted.</div><br/> <div class="paragraph">Because the main component of the linearly polarized, backscattered signal from [[hydrometeors]] has the same [[polarization]] as the transmitted polarization, the linear depolarization ratio yields a value less than unity or, equivalently, a negative [[decibel]] quantity. Note that relative to the [[receiver]] channels of the radar the linear depolarization ratio is defined inversely to the [[circular depolarization ratio]].</div><br/> </div> | <div class="definition"><div class="short_definition">(Abbreviated LDR.) The ratio of the [[power]] received in the [[orthogonal]], or cross-polarized, channel to that received in the transmission, or copolarized, channel of a [[dual-channel radar|dual- channel radar]], when a linearly polarized [[signal]] is transmitted.</div><br/> <div class="paragraph">Because the main component of the linearly polarized, backscattered signal from [[hydrometeors]] has the same [[polarization]] as the transmitted polarization, the linear depolarization ratio yields a value less than unity or, equivalently, a negative [[decibel]] quantity. Note that relative to the [[receiver]] channels of the radar the linear depolarization ratio is defined inversely to the [[circular depolarization ratio|circular depolarization ratio]].</div><br/> </div> | ||
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Latest revision as of 17:20, 25 April 2012
linear depolarization ratio[edit | edit source]
(Abbreviated LDR.) The ratio of the power received in the orthogonal, or cross-polarized, channel to that received in the transmission, or copolarized, channel of a dual- channel radar, when a linearly polarized signal is transmitted.
Because the main component of the linearly polarized, backscattered signal from hydrometeors has the same polarization as the transmitted polarization, the linear depolarization ratio yields a value less than unity or, equivalently, a negative decibel quantity. Note that relative to the receiver channels of the radar the linear depolarization ratio is defined inversely to the circular depolarization ratio.