Spherical phased array single pulse digital tracking system

Abstract

The invention proposes a spherical phased array single pulse digital tracking system and aims to provide a sum-difference beam tracking system without tracking phasing and with the capability of improving the over-top tracking performance. The system is implemented according to the following technical scheme: vector tracking angle error extraction equipment is used for extracting azimuth difference voltage and pitching difference voltage according to the sum, azimuth difference and pitching difference beam digital signals, a direction vector in the current three-dimensional cartesian coordinate system is converted into an error voltage of each component of the vector, which is sent into an angle tracking loop for vector tracking; the vector angle tracking equipment is used for expressing the current target azimuth and the pitching as the direction vector in the three-dimensional cartesian coordinate system, the error voltage of each component of the direction vector extracted in the three-dimensional cartesian coordinate system is sent into the angle tracking loop for vector tracking, the direction vector output by the tracking loop is converted into azimuth and pitching values obtained by tracking, which are fed back to all-digital single-pulse sum-difference beam forming equipment to achieve closed-loop feedback of target direction vector tracking.

Description

technical field [0001] The invention relates to a single-pulse digital and difference beam tracking system based on a spherical phased array, which can be applied to the fields of communication, radar, radio astronomy, sonar and optical tracking. Background technique [0002] Since the channel of the measurement and control system is dynamic in space, to complete the communication task, the most basic work is to realize the automatic tracking of the target. The monopulse digital tracking receiver is an important branch of the radar receiver. Its main function is to extract the angle error information of the tracking antenna, and finally complete the tracking of the target by the tracking antenna. The monopulse self-tracking receiver is a common type of tracking receiver. The so-called single pulse means that all the information of the target position can be obtained by comparing the same pulse received by each beam. In terms of system, receivers come in various forms, typi...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of the current spherical phased array tracking system, and propose a spherical phased array single-pulse digital tracking system that is simple in engineering, does not require tracking and phase correction, and can improve tracking performance.

Images