Performance Requirements for Ionospheric Correction of Low-Frequency SAR Data
Performance Requirements for Ionospheric Correction of Low-Frequency SAR Data
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DOI：
10.1109/tgrs.2011.2146786
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发表时间：
2011-06
影响因子：
8.2
通讯作者：
F. Meyer
中科院分区：
文献类型：
--
作者：
F. Meyer
近年来，低频合成孔径雷达（SAR）数据中电离层效应建模、探测和校正的理论和方法研究取得了重大进展。虽然已经开发了大量在灵敏度、数据需求和时空精度方面各不相同的校正方法，但由于缺乏电离层校正的性能要求，妨碍了对其业务实施适用性的评估。因此，本文重点研究低频SAR数据中电离层效应校正的性能要求。这些要求是考虑到一组SAR应用的数据质量需求而得出的，并将确保电离层校正后的SAR数据符合校准规范，并在所有电离层条件下保持完整的性能。拟议的要求可作为电离层校正方法绩效评估的基准，并将有助于确定其是否适合业务实施。要求确定为SAR偏振测量、SAR成像、SAR干涉测量和电离层研究。
In recent years, significant progress has been made in developing theory and methods for modeling, detecting, and correcting ionospheric effects in low-frequency synthetic aperture radar (SAR) data. While a large number of correction methods have been developed that differ in sensitivity, data needs, and spatiotemporal accuracy, a lack of performance requirements for ionospheric correction has prevented an evaluation of their suitability for operational implementation. Hence, this paper focuses on the development of performance requirements for the correction of ionospheric effects in low-frequency SAR data. The requirements are derived considering the data quality needs of a set of SAR applications and will ensure the SAR data after ionospheric correction to meet calibration specifications and maintain full performance during all ionospheric conditions. The proposed requirements can serve as a benchmark for a performance assessment of ionospheric correction methods and will help define their suitability for operational implementation. Requirements are determined for SAR polarimetry, SAR imaging, SAR interferometry, and ionospheric research.