Monitoring and correcting device for single event upset fault of satellite borne spread spectrum responder

Abstract

The invention discloses a monitoring and correcting device for a single event upset fault of a satellite borne spread spectrum responder. The monitoring and correcting device is used for monitoring and correcting a communication processing module of the satellite borne spread spectrum responder. The monitoring and correcting device is characterized by comprising an anti-fuse FPGA circuit, a watchdog circuit and an AND gate logic circuit, the anti-fuse FPGA circuit is used for conducting backward reading, backward reading information comparing and heavy load judging on the configuration information of the communication processing module and used for sending first heavy load signals to the AND gate logic circuit, the watchdog circuit is used for sending second heavy load signals to the AND gate logic circuit according to feed dog signals sent by the communication processing module, and the AND gate logic circuit is used for conducting AND logic operation on the received first heavy load signals and the received second heavy load signals and sending heavy load enabling signals to the communication processing module according to AND results.

Description

technical field [0001] The invention belongs to the technical field of anti-single-event flipping reinforcement design for aerospace products, and in particular relates to a monitoring and correcting device for single-event flipping faults of space-borne spread spectrum transponders. Background technique [0002] The spread spectrum transponder plays an extremely important role in aerospace measurement and control. It receives uplink measurement signals to complete ranging and speed measurement functions, receives uplink remote control signals, and forwards downlink telemetry signals and downlink measurement signals. The main function of the spread spectrum transponder is realized by the channel signal processing module, and the function of the channel signal processing module is implemented by a large-scale 6 million field-programmable gate array (Field-Programmable Gate Array, FPGA) based on static random access memory (Static RAM, SRAM). XQR2V6000-4CF1144H completed. [...

AI Technical Summary

Problems solved by technology

[0004] The space-borne spread-spectrum transponder currently in orbit is based on the SRAM-type million-gate aerospace-grade FPGA, and does not take system-level program-controlled instruction reset measures. Single-machine occurrences of single-event flips cause performance indicators to decline, and even some functions fail.

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