Time control method of navigation management beam scanning

Abstract

The invention provides a time control method of navigation management beam scanning. The time control method of the navigation management beam scanning solves the problems that the enquiry circle is prolonged and the time usage ratio is low when the secondary radar system navigation management monitoring function is compatible with other inquiring functions. According to the technical scheme, in a navigation management beam scanning time system, a navigation management monitoring airspace is evenly divided into a plurality of continuous beam positions; when a navigation management control command of a radar control table is sent to a digital signal processor (DSP) through a field programmable gate array (FPGA), the DSP reads a beam position dividing parameter from the FLASH and enables a FPGA timer to start beam position lingering time slot timing, and in each time slot, the DSP sends a scanning beam number of the next time slot to a beam control code connector controller of a phased-array antenna and an RS422 connector module of an answering signal processing device through the FPGA, and when time hopping happens, a pulse controller of the FPGA is controlled by the timer to generate an enquiry starting pulse; and the DSP judges the veracity of beam position switch according to the beam position number passed back from the phased-array antenna and the answering signal processing device.

Description

technical field [0001] The present invention relates to the beam scanning time control method when the air traffic control monitoring is compatible with other inquiry functions. More specifically, the present invention is used in a secondary radar system with a phased array antenna system. When multiple inquiry functions work at the same time, for A beam scanning control method that satisfies the update rate of air traffic control data and improves the work efficiency of air traffic control. Background technique [0002] As a recognition and surveillance system for airspace targets, the secondary radar system has been widely used in air traffic control, target recognition, beacon tracking and many other aspects. Secondary radar is an electronic device that obtains cooperative target information by transmitting interrogation signals and receiving response signals. Compared with traditional secondary radar systems based on mechanical scanning, a new system has been developed t...

AI Technical Summary

Problems solved by technology

But in the application, it is found that for the secondary radar system with multiple query and detection functions, since the air traffic control monitoring adopts the continuous scanning and query working mode, when the system is in the air traffic control monitoring work, the query method with priority higher than the air traffic control will be Interrupt and occupy the air traffic control scanning inquiry time. The existing secondary radar beam scanning control technology is only aimed at the single function of air traffic control monitoring in the design of the scanning time window. When other inquiry methods in the system occupy the air traffic control inquiry signal processing time, The use of this time window for scanning time control will result in the prolongation of the air traffic control scanning query cycle, which will seriously affect the real-time performance of air traffic control detection targets and information acquisition, and cannot meet the requirements of the air traffic control monitoring data update rate; and the current secondary radar system uses In each scanning time slot, the beam scanning control equipment first transmits the beam azimuth data to the phased array antenna and the response signal processor, and then the response signal processor processes the air traffic control signal, which cannot reach the air traffic control query signal. The processing work fully utilizes the entire time system, which reduces the work efficiency of air traffic control monitoring

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