Realization Method of Secondary Radar Digital Interrogation Coding

Abstract

The invention discloses a secondary radar digital inquiry coding implementation method. The method specifically comprises the following steps of constructing a communication mechanism, carding the digital content, planning a data communication format, formulating a digital starting time reference criterion and a digital data generation criterion, compiling a modal digital coded data script, receiving a mode changing control command in real time, automatically adjusting interrogation coding script data, and dynamically outputting digital coded pulses. According to the technical scheme of the invention, interrogation modes can be switched conveniently and accurately in real time. Meanwhile, interrogation coding pulses can be efficiently outputted based on the timing relationship thereof. When the method is applied to a ground-based radar and an airborne radar provided with a secondary radar device, the switching efficiency of interrogation modes is improved. Meanwhile, the real-time performance, the reliability and the stability of the secondary radar device are improved. Therefore, the tactical and technical index of a radar system is further improved. The method provides a stable and reliable basis for the synthetic combat commanding and the intelligent decision commanding of an electronic task system.

Description

technical field [0001] The invention relates to the technical field of radar (including an interrogator and a transponder of a secondary radar) communication technology, in particular to a novel secondary radar digital coding implementation method based on FPGA+PowerPC architecture. Background technique [0002] With the development of aviation industry, the increase of air traffic makes the role of air traffic management system very important. Air traffic controllers use radar to provide control services for identified aircraft, and can see the information parameters of the aircraft from the radar screen. In the air traffic management system, conventional mode and S mode technology are used for monitoring functions, based on independent addressing and selective inquiry, and information exchange is realized by pulse coding the content of the uplink query and downlink response. The encoder is the center of the entire radar, used to generate the synchronization signal and int...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of the prior art, the present invention provides a secondary radar digital interrogation coding implementation method, which solves the problems of traditional secondary radar encoder equipment with large volume, low power consumption, poor real-time performance and low programmability. problems, making signal processing equipment develop towards the trend of miniaturization, intelligence, and programmable

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