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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >Robust Array Configuration for a Microwave Interferometric Radiometer: Application to the GeoSTAR Project
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Robust Array Configuration for a Microwave Interferometric Radiometer: Application to the GeoSTAR Project

机译：微波干涉辐射计的稳健阵列配置：在GeoSTAR项目中的应用

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摘要

The Geostationary Synthetic Thinned Array Radiometer represents a promising new approach to microwave atmospheric sounding from geostationary orbit based on passive interferometry. One of the major concerns about the feasibility of this new concept is related to the ability of the sensor to cope with the failure of one or several of its single receivers/antennas. This letter shows that the inclusion of a small percentage of additional antennas significantly reduces the degradation of radiometric resolution caused by such receiver failure. Impact of antenna failure is analyzed, taking into account two test images with very different spatial harmonic content. A tradeoff analysis of several array topologies is performed so as to minimize the number of additional antennas while keeping worst case radiometric error within a reasonable level
机译：对地静止合成稀疏阵列辐射计代表了一种基于无源干涉法的对地静止轨道微波大气探测的有前途的新方法。关于该新概念的可行性的主要关注之一与传感器应对一个或多个单个接收器/天线的故障的能力有关。这封信表明，少部分附加天线的加入可显着减少此类接收器故障导致的辐射分辨率降低。分析了天线故障的影响，并考虑了两个空间谐波含量差异很大的测试图像。对几种阵列拓扑进行权衡分析，以使附加天线的数量最少，同时将最坏情况下的辐射误差保持在合理水平内

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