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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Coherence Loci for a Homogeneous Volume Over a Double-Bounce Ground Return
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Coherence Loci for a Homogeneous Volume Over a Double-Bounce Ground Return

机译：双反弹地面回波上同质体积的相干轨迹

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摘要

The formulation of the polarimetric interferometric coherences derived by simple homogeneous-volume-over-ground models is revisited for the case of ground returns dominated by the double-bounce terms. The differences between single-transmit (single-tx) and alternate-transmit modes of the interferometer are analyzed by inspecting the positions of the coherences on the complex plane. An additional volume-decorrelation term appears when the interferometer is operated in a single-tx mode, which adds complexity in the potential inversion of the model parameters. This effect is even more noticeable for the cross-polar channels in the oriented case, since the phase of the coherence with an infinite ground-to-volume ratio does not correspond to the topographic phase, as observed for the copolar channels.
机译：对于以双反射项为主的地面回波，重新讨论了由简单的地面均一体积模型得出的极化干涉相干的公式。通过检查复平面上相干的位置，分析了干涉仪的单次发送（单次发送）模式和交替发送模式之间的差异。当干涉仪以单发送模式运行时，会出现一个附加的体积去相关项，这会增加模型参数潜在反演的复杂性。在定向情况下，这种效果对于交叉极通道来说更为明显，因为具有无限的地对体积比的相干相位不对应于形貌相位，正如对同极通道所观察到的那样。

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