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首页> 外文期刊>IEEE Transactions on Geoscience and Remote Sensing >Probabilistic Attenuation Correction in a Networked Radar Environment
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Probabilistic Attenuation Correction in a Networked Radar Environment

机译:网络雷达环境中的概率衰减校正

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摘要

A probabilistic attenuation correction technique for a single-polarization networked radar environment is proposed. The proposed technique, based on the Bayesian theory, makes a maximization of a likelihood function of Hitschfeld-Bordan (HB) reflectivity obtained by each radar node. A variance of the HB reflectivity (σHB2) is defined and regarded as instability of each HB reflectivity in the proposed technique. In the X-band simulation based on S-band real radar data, it is revealed that the corrected reflectivity obtained by the proposed technique has good accuracy, and the proposed technique works more stably than the HB technique. The proposed technique is also performed using CASA IP-1 dual-polarization radar network observations, and the corrected reflectivity by the proposed technique has a good agreement with differential phase (ΦDP)-based corrected reflectivity.
机译:提出了一种单极化网络雷达环境下的概率衰减校正技术。所提出的技术基于贝叶斯理论,最大化了由每个雷达节点获得的希施费尔德·波尔丹(HB)反射率的似然函数。定义了HB反射率的方差(σHB2),并将其视为所提出技术中每个HB反射率的不稳定性。在基于S波段真实雷达数据的X波段仿真中,发现所提出的技术获得的校正反射率具有良好的精度,并且所提出的技术比HB技术更稳定地工作。还使用CASA IP-1双极化雷达网络观测结果执行了所提出的技术,并且所提出技术的校正反射率与基于差分相位(ΦDP)的校正反射率具有良好的一致性。

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