Phased-array antenna beam control system based on distribution-centralization type beam control mode

Abstract

The invention discloses a phased-array antenna beam control system based on a distribution-centralization type beam control mode. The system comprises a wave control computer, beam control modules, a digital phase shifter module and a BITE (Built-In Test Equipment) detection module. The phased-array antenna beam control system is used for controlling digital phase shifters of array units on the basis of wave control codes output by the beam control modules of a DSP (digital signal processor); in a distributed wave control mode, a plurality of array units are divided into a plurality of sub antenna arrays according to the number of bus interfaces, and each sub antenna array is provided with one beam control module; and in a centralized wave control mode, the wave control codes of the digital phase shifters of all the array units in the sub antenna arrays are generated by the beam control modules. According to the wave control computer, wave control codons are issued to a plurality of beam control modules through a bus, disposing-phase operation and phase compensation are carried out on the received wave control codons by the beam control modules, and then the wave control codes are obtained; phase control is carried out on the array units by the digital phase shifters according to the wave control codes; and the working state of the digital phase shifters is detected by the BITE detection module.

Description

technical field [0001] The invention relates to the technical field of wireless communication, and belongs to a phased array antenna beam control system, more specifically, a phased array antenna beam control system based on a distributed-centralized beam control mode. Background technique [0002] A phased array antenna (phased array antenna) is an antenna that changes the shape of the pattern by controlling the feeding phase of the radiating elements in the array antenna. Controlling the phase can change the direction of the maximum value of the antenna pattern to achieve the purpose of beam scanning. [0003] Patent application number CN 201180000819.2, the title of the invention is "phased array antenna alignment method and device and phased array antenna", the content disclosed in paragraph [0094] of the description is: as shown in Figure 8, the rotating receiver of this embodiment The beamforming unit 1 includes: a plurality of phase shifters 12, a power splitter 13, ...

AI Technical Summary

Problems solved by technology

This scheme has less hardware equipment and is suitable for phased array antennas with fewer array elements. When there are more array elements, the calculation time is often longer, which will affect the beam scanning speed.

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