Spaceborne processing platform resisting single event effect

Abstract

The invention discloses a spaceborne processing platform resisting single event effect, which comprises a high-reliability monitoring unit, a non-volatile memory, a field programmable logic gate array and more than one DSPs, the high-reliability monitoring unit and other parts are interconnected by a local bus, and the field programmable logic gate array and the DSPs are interconnected by a high-speed bus; the high-reliability monitoring unit is used for detecting and repairing single event upset in the field programmable logic gate array and the DSPs. The invention is a spaceborne processing platform having simple structural principal, convenient operation, high reliability, good stability and the ability of resisting the single event effect.

Description

technical field [0001] The invention mainly relates to the field of space instrument engineering, in particular to a space-borne processing platform capable of resisting single-event effects. Background technique [0002] Cosmic space is full of various particles from the vast universe: protons, electrons, alpha particles, heavy ions, gamma rays, etc. The radiation effects caused by these particles, especially the single event effect, affect the reliability of space electronic instruments. [0003] In recent years, with the development and application of VLSI (Very Large Scale Integrated circuits) technology, Field Programmable Logic Gate Array (FPGA, Field Programmable Gate Array) and Digital Signal Processor (DSP, Digital Signal Processor) , relying on its powerful signal processing capability and superior interface performance to gradually replace the traditional single-chip microcomputer, become an important part of the spaceborne high-speed signal processing platform, a...

AI Technical Summary

Problems solved by technology

It can be seen that with the decrease of the feature size and the increase of the density of the VLSI transistor process, the reduction of the core operating voltage and the substantial increase of the operating frequency, the spaceborne signal processing platform is more and more seriously affected by the single event effect. The proportion of single event effect failures will further increase

[0005] At present, in the on-board signal processing platform, on the one hand, high-performance, large-scale, high-grade FPGA and DSP devices are extremely expensive; Due to the large number of on-chip SRAM (Static Random Access Memory) used in low-priced FPGA and DSP devices, the probability of single event effects caused by space high-energy particles is greatly increased, which seriously affects the normal operation of FPGA and DSP devices in space environments

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