FPGA single event upset protection method and system for FY-4A satellite lightning imager

Abstract

The invention discloses an FPGA single event upset protection method and system for an FY-4A satellite lightning imager. The method comprises: the automatic detection of FPGA single-event flipping onthe FY-4A satellite lightning imager; the FPGA automatic refresh protection on the FY-4A satellite lightning imager; and the FPGA timing refresh protection on the FY-4A satellite lightning imager; automatic reset protection on the FY-4A satellite lightning imager. The method solves the technical problem of lacking single-event flip protection measures for the single-event effect study of the FY-4Asatellite lightning imager FPGA. According to the characteristics of lightning observation missions and the timeliness of lightning detection products recovery, the method adopts multiple measures ofsingle-event flip protection such as automatic discrimination and automatic command, dynamic refresh and timing refresh, software reset and hardware reset to realize FPGA single particle. Flip automatic recovery. Through the above work, the current FY-4A satellite lightning imager has effectively reduced the impact of single-event flipping effects on lightning detection products.

Description

technical field [0001] This application relates to the field of meteorological satellite ground application systems, in particular, to an FPGA single event flip protection method and system for the FY-4A satellite lightning imager. Background technique [0002] The FY-4A satellite was successfully launched on December 11, 2016, as the first trial satellite of my country's new generation of geostationary orbit meteorological satellites. The satellite platform adopts an advanced three-axis stable attitude control method, and is mainly equipped with four instruments including a multi-channel scanning radiation imager, an interferometric atmospheric vertical detector, a lightning imager and a space environment monitor, among which the FY-4A satellite lightning imager The main function is to continuously and real-time monitor the total lightning in China and adjacent areas. At present, the only geostationary satellites equipped with lightning imagers in the world are the FY-4A s...

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Problems solved by technology

[0008] The main purpose of this application is to provide a method and system for FY-4A satellite lightning imager FPGA single event flipping protection, to solve the lack of single event flipping when studying the single event effect of FY-4A satellite lightning imager FPGA The problem of protective measures

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