Design and Performance of X-Band SAR Payload for 80 kg Class Flat-Panel-Type Microsatellite Based on Active Phased Array Antenna
Design and Performance of X-Band SAR Payload for 80 kg Class Flat-Panel-Type Microsatellite Based on Active Phased Array Antenna
复制标题
基于有源相控阵天线的80 kg级平板型微小卫星X波段SAR有效载荷设计与性能
DOI：
10.3390/aerospace9040213
复制
发表时间：
2022
期刊：
影响因子：
2.6
通讯作者：
Hyunjong Oh
中科院分区：
文献类型：
--
作者：
Seok Kim;C. Song;Seung;S. Song;Hyunjong Oh
小合成孔径雷达（SAR）技术实验项目（S-STEP）任务旨在开发一种创新的星载SAR微卫星，该卫星由32颗微卫星组成，具有1米高分辨率条带图模式。S-STEP是一项星载SAR微卫星技术演示计划，该计划提出并研究了SAR有效载荷系统设计的创新方法，以提高SAR卫星系统的开发速度、可负担性、尺寸和重量参数以及质量。在本研究中，主要的设计方法包括基于有源相控阵天线的总线有效载荷集成平板型SAR有效载荷。为验证S-STEP创新SAR有效载荷设计的可行性，本研究针对任务需求进行了SAR图像性能分析。这些性能分析结果证明了在新空间范式下所提出的SAR有效载荷设计方法的有效性。
The small synthetic aperture radar (SAR) technology experimental project (S-STEP) mission aims to develop an innovative spaceborne SAR microsatellite as a constellation of 32 microsatellites featuring a high-resolution stripmap mode of 1 m. The S-STEP is a spaceborne SAR microsatellite technology demonstration program in which innovative approaches have been proposed and investigated for SAR payload system designs for improving the development speed, affordability, size and weight parameters, and quality of SAR satellite systems. In this study, the major design approach includes a bus–payload integrated flat-panel-type SAR payload based on an active phased-array antenna. This study conducted an SAR image performance analysis considering the mission requirements to validate the feasibility of the innovative SAR payload design of the S-STEP. These performance analysis results are presented to demonstrate the effectiveness of the proposed SAR payload design approach under the new space paradigm.