Signal processing system for identification friend or foe (IFF) transponder

Abstract

The invention discloses a signal processing system for an identification friend or foe (IFF) transponder. The signal processing system is mainly composed of a photoelectric conversion part, a signal amplifying part, a filtering part, an automatic level gain control part, a single chip microcomputer and an output end overvoltage protection circuit. Firstly, a received weak optical signal is converted into an electric signal by the photoelectric conversion part, then the electrical signal obtained through conversion is input into the amplifying part of the system, the signal is amplified and then subjected to filtering treatment, the target signal is extracted and then processed through the automatic level gain control circuit, the output end overvoltage protection circuit is additionally arranged for preventing the single chip microcomputer from being burnt due to too large output end level, and finally, the signal is input into the single chip microcomputer. The signal processing system can effectively improve the IFF effectiveness of the existing combat system and reduce accidental injury rate. The signal processing system has the advantages of high accuracy, high reliability, low cost, low power consumption and the like.

Description

technical field [0001] The invention belongs to the specific application of signal processing technology, in particular to a signal processing system of an identification friend or foe transponder. Background technique [0002] Identification of friend and foe is one of the fundamental problems to be solved first in ancient and modern Chinese and foreign wars. The traditional identification of friend and foe in warfare mainly relies on human judgment, and is realized by judging friend and foe clothing, equipment shape features, temporary identification beacons, and even passwords. With the development of war and the progress of science and technology, the identification friend or foe system came into being. The function of the identification friend or foe system is to correctly and automatically distinguish between friend and foe targets in war. Due to the lack of an effective identification system between friend and foe, the incident of false attack has become a prominent...

AI Technical Summary

Problems solved by technology

[0005] In view of the fact that the existing identification friend or foe response signal processing system has low accuracy, slow corresponding speed and serious noise, starting from the signal processing angle of the transponder of the entire identification friend or foe system, combined with specific hardware and software design, the purpose of the present invention is to provide An IFF transponder signal processing system with high accuracy, good reliability, low cost and low power consumption to meet the operational requirements of the entire IFF system

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