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Spherical phased array single pulse digital tracking system

A tracking system and single-pulse technology, used in radio wave measurement systems, radio wave reflection/re-radiation, utilization of re-radiation, etc., to achieve the effect of simple engineering implementation, simplified design, and simplified workflow

Pending Publication Date: 2019-07-23
10TH RES INST OF CETC
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  • Abstract
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  • Claims
  • Application Information

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.

Method used

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  • Spherical phased array single pulse digital tracking system
  • Spherical phased array single pulse digital tracking system
  • Spherical phased array single pulse digital tracking system

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Embodiment Construction

[0017] refer to figure 1. In the preferred embodiment described below, a spherical phased array monopulse digital tracking system includes: a spherical phased array antenna, a multi-channel digital TR component, an all-digital monopulse and difference beamforming device, vector tracking angle error extraction equipment, vector angle tracking equipment, signal demodulation equipment. The spherical phased array antenna and the multi-channel digital TR component receive the radio frequency signal of the target aircraft and obtain the multi-channel downlink digital signal through digital acquisition and send it to the all-digital monopulse and differential beamforming equipment; the all-digital monopulse and differential beamforming equipment is based on The azimuth and elevation information of the vector angle tracking device calculates the weighted value of the single pulse sum, azimuth difference and elevation difference beam and obtains the sum, azimuth difference and elevati...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/44G01S7/28G01S7/285G01S7/292
CPCG01S13/4463G01S7/292G01S7/28G01S7/285
Inventor 冯林高王锋韩明徐茂格曾富华王文政
Owner 10TH RES INST OF CETC
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