The soil moisture and ocean salinity (SMOS) satellite has provided for about ten years systematic passive L-band measurements from space. For several months, phase 0 studies are conducted by the French space agency for a second-generation high resolution (HR) follow-on mission. This contribution is making the connection between this SMOShr project and the SMOS mission by revisiting the following problematic: the impact of the disparity of the antenna patterns on the reconstruction floor error observed in the retrieved brightness temperatures. This impact is revisited in light of the progress made since that time and a new metric is introduced for estimating the disparity between antenna patterns. It would be helpful for the design of future missions based on imaging by aperture synthesis with interferometric arrays comprising a large number of antennas.

中文翻译：

---

估计合成孔径成像辐射测量中天线方向图差异的新指标


土壤湿度和海洋盐度 (SMOS) 卫星提供了大约十年的空间系统被动 L 波段测量。法国航天局为第二代高分辨率 (HR) 后续任务进行了几个月的零阶段研究。这一贡献通过重新审视以下问题，在 SMOShr 项目和 SMOS 任务之间建立了联系：天线方向图的差异对在检索的亮度温度中观察到的重建底板误差的影响。根据自那时以来取得的进展重新审视了这种影响，并引入了一种新的度量来估计天线方向图之间的差异。这将有助于基于由大量天线组成的干涉阵列进行孔径合成成像的未来任务设计。