期刊
AEROSPACE
卷 8, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/aerospace8060149
关键词
small satellite; synthetic aperture radar (SAR); new space; whole spacecraft vibration isolation
资金
- Agency for Defense Development (ADD)
The S-STEP mission aims to develop a small SAR satellite with innovative thermo-mechanical design approaches, including flat plate-type structure, multifunctional TR module, and VFOD. Structural analysis and development tests confirm the effectiveness of the design.
The Small SAR Technology Experimental Project (S-STEP) mission aims to develop a new (space-based 80 kg-class active X-band synthetic aperture radar (SAR)) satellite with a main imaging mode of 1 m resolution stripmap. In the S-STEP mission, to achieve the design goal of developing faster, cheaper, better, and lighter small SAR satellite systems, innovative thermo-mechanical design approaches have been proposed and investigated. The major design approaches are the bus-payload integrated flat plate-type structure, multifunctional transmit/receive (TR) module, and dedicated vibration-free orbit deployer (VFOD) with the function of whole spacecraft vibration isolation. To validate the feasibility of the innovative mechanical design of S-STEP, a structural analysis considering launch and on-orbit environments is performed. In addition, development test results are presented to confirm the effectiveness of the proposed design approach for VFOD.
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