Goddard Modular SmallSat Architecture (GMSA) Hardware Presentation

[摘要] In today's rapidly advancing technology roadmap for space applications there is an emphasis on completing missions faster and cheaper than previous large-scale missions at the National Aeronautics and Space Administration (NASA) such as the Magnetospheric Multiscale (MMS) mission. As part of this effort, focus has shifted from using mostly radiation-tolerant or radiation-hardened parts to more commercial-off-the-shelf (COTS) components for missions that can last at least one year in orbit. However, there are some portions of a spacecraft's avionics, such as the command and data handling (C&DH) system and the Electrical Power Systems (EPS) that need to have some level of predictable reliability that goes beyond the capabilities of currently available COTS parts. While there are a number of COTS components that can withstand a total ionizing dose (TID) of tens or hundreds of kilorads, there is still a great deal of concern about tolerance to and mitigation of single-event effects (SEE).

[发布日期] 2019-07-30

[学科分类] 计算机系统及组成

[关键词] SMALL SATELLITE TECHNOLOGY;ARCHITECTURE (COMPUTERS);HARDWARE;TECHNOLOGY UTILIZATION;AVIONICS;RADIATION TOLERANCE;TOTAL IONIZING DOSE;RELIABILITY ENGINEERING;COMMERCIAL OFF-THE-SHELF PRODUCTS;ENVIRONMENTAL TESTS