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

A phased array antenna and beam control technology, applied in general control systems, control/adjustment systems, antennas, etc., can solve the problems of long operation time, affecting beam scanning speed, and small amount of hardware equipment, achieving fast processing speed, The effect of fast calculation speed and accurate beam pointing

Active Publication Date: 2012-10-17
BEIHANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This scheme has less hardware equipment and is suitable for phased array antennas with fewer array elements. Whe

Method used

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

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Embodiment

[0079] A phased array antenna beam control system based on distributed-centralized beam control mode of the present invention is applied to design a phased array antenna beam control system with 900 array units. In this embodiment, the number of arrays, that is, the number M of DSP beam control modules is 30, and the number P of array units in each sub-array is 30. The DSP chip selects the TMS320F2812 model of TI Company. According to this embodiment, the performance index of the phased array antenna beam control system based on the distributed-centralized beam control mode of the present invention is analyzed as follows:

[0080] In order to realize the operation speed of the wave control system is fast. The calculation time includes: the information transmission time between the beam control computer and the DSP beam control module is recorded as t 1 , the time of phase matching operation and phase compensation inside the DSP beam control module is recorded as t 2 , the i...

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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, ...

Claims

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Application Information

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IPC IPC(8): H01Q3/30G05B19/042
Inventor 陈爱新房见姜维维杨绰安康吴鹏
Owner BEIHANG UNIV
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