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A Robust Beamforming Method Based on Frequency Controlled Distributed Electromagnetic Vector Sensor

An electromagnetic vector and distributed technology, applied in the direction of radio transmission systems, electrical components, transmission systems, etc., can solve the problems of high signal-to-noise ratio and no corresponding method provided by FD-DEMVS applications, and achieve high energy and good resolution Effect

Inactive Publication Date: 2020-07-14
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
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Problems solved by technology

FD-DEMVS can not only provide the same angle-distance-polarization-dependent beam as FD-EMVS, but also has better spatial-distance-polarization domain resolution, and the array output SINR (Signal to Interference plus NoiseRatio, signal to noise ratio), in addition, currently there is no effective FD-DEMVS beamforming method for the case of steering vector mismatch, and there is no corresponding method for specific related applications of FD-DEMVS

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  • A Robust Beamforming Method Based on Frequency Controlled Distributed Electromagnetic Vector Sensor
  • A Robust Beamforming Method Based on Frequency Controlled Distributed Electromagnetic Vector Sensor
  • A Robust Beamforming Method Based on Frequency Controlled Distributed Electromagnetic Vector Sensor

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[0017] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the implementations shown and described in the drawings are only exemplary, intended to explain the principle and spirit of the present invention, rather than limit the scope of the present invention.

[0018] The embodiment of the present invention takes an S-band FD-DEMVS as an example, and provides a robust beamforming method based on a frequency-controlled distributed electromagnetic vector sensor, such as figure 1 shown, including the following steps:

[0019] S1. Determine the spatial structure of the frequency-controlled distributed electromagnetic vector sensor: according to the given array size, number of antenna elements, antenna element spacing and FD-DEMVS radius, place x, y, and z coordinates on each antenna The electric dipole and magnetic dipole of the shaft form a frequency-controlled distributed electr...

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Abstract

The invention discloses a robust beamforming method based on a frequency-controlled distributed electromagnetic vector sensor, which belongs to the technical field of frequency-controlled distributed electromagnetic vector sensor array radar, and includes specific design steps for FD-DEMVS and a robust method based on variable diagonal loading. Beamforming method. Compared with the traditional minimum variance distortion-free method, the array output SINR of the present invention is improved, which effectively improves the array performance; in addition, the FD-DEMVS proposed by the present invention is compared with the compact FD-EMVS, and the beam formed by it is due to the FD ‑DEMVS has a larger aperture and better resolution, so the present invention has the feature of concentrating higher energy in a given area.

Description

technical field [0001] The invention belongs to the technical field of a frequency-controlled distributed electromagnetic vector sensor (FD-DEMVS) array radar, and in particular relates to the design of a robust beam forming method based on a frequency-controlled distributed electromagnetic vector sensor. Background technique [0002] Antenna array signal processing technology has been widely used in many fields such as radar, sonar, wireless communication and medical signal detection. Beamforming is an important branch of array signal processing technology, and its performance is mainly determined by the antenna array structure, its own directional characteristics and the corresponding beamforming method. Therefore, only by simultaneously optimizing the antenna array structure and array signal processing method can the overall performance of the antenna system be improved. The elements of the existing phase array emit the same coherent signal, and the spatial scanning of t...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B7/06
CPCH04B7/0617
Inventor 陈慧邵怀宗王文钦胡全潘晔廖轶
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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