星载软件无线电平台及其单粒子效应研究方法

结合国内外研究进展,介绍了软件无线电技术在星载设备中的应用,给出了一种星载软件无线电平台的结构.针对单粒子效应对星载软件无线电平台可靠性影响,提出了一种软件无线电平台对抗单粒子效应的设计与验证方法,并给出了针对该平台中FPGA和DSP的故障注入方法.这种抗单粒子效应的研究方法和故障注入方法代价低、设计灵活,在某卫星星载多用户扩频接收机的可靠性设计过程中得到了验证和实施,使低等级高性能器件在星载信号处理平台中的应用成为可能. 

Single Event Simulation and Evaluation Methodology for Spaceborne Software Radio Platform

After a brief introduction of the software radio technique used in spacecrafts and satel- lites,an architecture of a Spaceborne Software Radio Platform (SSRP) is given.The Single Event Effects (SEEs) for the SSRP' reliability is presented and a novel method is listed for the simulation and evaluation of SSRP' reliability design technology.As the main components of the SSRP Field Programmable Gate Array (FPGA) and Digital Signal Processor's (DSP) SEEs and reliability are even important.A fault injection method is listed for the simulation of SEEs and is introduced for the evaluation of the FPGA and DSP's reliability design.The design idea and fault injection method has the advantage of cheap and flexible and it has been adopted in a spaceborne multiuser receiver based on direct sequence spread spectrum technology and proved to be effective in the environmental test.With the reliability design method,low grade with high performance device is possible to be used in space.