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Large-aperture two-dimensional short wave direction finding system

A direction-finding system and large-aperture technology, applied in radio wave direction/deviation determination systems, direction finders using radio waves, transmission systems, etc., can solve problems such as unseen direction-finding systems and single functions, and achieve strong promotion The effect of application value, high degree of automation and strong monitoring ability

Active Publication Date: 2018-12-25
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology

[0003] At present, the research on communication countermeasures and spectrum monitoring in the open literature mainly focuses on devices or systems with small antenna array apertures, and the functions are relatively single
In addition, in the published literature, scholars at home and abroad mainly focus on the research of two-dimensional array processing algorithms, and have not yet seen the design and implementation technology of large-aperture antenna arrays, the integration technology of digital beamforming and analog beamforming, broadband monitoring and Direction-finding channelization technology, robust two-dimensional spatial spectrum estimation direction-finding algorithm design and implementation technology in a complex electromagnetic environment direction-finding system

Method used

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  • Large-aperture two-dimensional short wave direction finding system
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  • Large-aperture two-dimensional short wave direction finding system

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Embodiment Construction

[0035] refer to Figure 1-7 , a large-aperture two-dimensional short-wave direction-finding system, which includes an antenna array, a narrow-band direction-finding system, a wide-band direction-finding system, and a monitoring and signal analysis system;

[0036] The antenna array includes an outer circular array with an array aperture of 340 meters, an inner circular array with an array aperture of 120 meters and a central array element located at the center of the array. The outer circular array and the inner circular array are respectively There are 36 array elements evenly distributed;

[0037] The narrowband direction finding system includes a narrowband direction finding antenna switcher, a shortwave channel unit and a narrowband direction finding processing unit; the narrowband direction finding antenna switcher contains a calibration source inside, which is used to achieve calibration under the control of the narrowband direction finding processing unit Signal, outer...

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Abstract

The invention discloses a large-aperture two-dimensional short wave direction finding system, which relates to the fields of communication countermeasures and spectrum monitoring. The system comprisesan antenna array, a narrow-band direction finding system, a broadband direction finding system, and a monitoring and signal analysis system. The large-aperture two-dimensional short wave direction finding system with high direction finding accuracy, long acting distance, high co-frequency signal immunity, high co-frequency multi-signal processing capability, and single station positioning capability, which is designed and implemented by the invention, has the advantages of high direction finding accuracy, long acting distance, high co-frequency signal immunity, high co-frequency multi-signalprocessing capability, single station positioning capability and the like, can be applied to application fields such as communication countermeasures, radio monitoring, spectrum management and the like, and is reliable in performance and has high popularization and application value.

Description

technical field [0001] The invention relates to the technical field of communication countermeasures and the technical field of frequency spectrum monitoring, in particular to a large-aperture two-dimensional short-wave direction finding system. Background technique [0002] The field of communication countermeasures and spectrum monitoring involves the design and implementation technology of large-aperture antenna arrays for reconnaissance and direction finding, digital beamforming and analog beamforming integration technology, broadband monitoring and direction finding channelization technology, and robust two-dimensional space in complex electromagnetic environments Spectrum estimation direction finding algorithm design and implementation technology and other key technologies. [0003] At present, research on communication countermeasures and spectrum monitoring in open literature mainly focuses on devices or systems with small antenna array apertures, and their functions...

Claims

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Application Information

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IPC IPC(8): G01S3/14H04B7/08H04B17/21
CPCG01S3/14H04B7/0802H04B17/21
Inventor 翟庆伟高杰柳星谱刘师范王艳温贡彦飞王志永赵玉博岳超陈德全程烨冯士保
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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