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A Target Recognition Method Based on Cooperative Passive Detection of Multidimensional Information

A passive detection and target recognition technology, applied in measurement devices, radio wave measurement systems, radio wave reflection/re-radiation, etc., can solve the problem of not being able to identify radar combinations at the same time, and achieve the goal of improving platform identification efficiency and reducing difficulty. Effect

Active Publication Date: 2020-11-10
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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Problems solved by technology

[0003] A platform may usually be equipped with multiple types of radars and has a fixed radar combination, which makes it an effective way to identify target platforms by identifying fixed radar combinations in passive detection; the radars in these radar combinations usually work in Different frequency bands, therefore, when a single radar is performing passive detection, it may only be able to detect a certain radar in the radar combination due to its own frequency band resources at the same time, and cannot identify the radar combination of a certain type of platform at the same time

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  • A Target Recognition Method Based on Cooperative Passive Detection of Multidimensional Information

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with accompanying drawing:

[0014] figure 1 It is a flowchart of the present invention. This protocol includes the following steps:

[0015] Step 1: This station performs necessary information interaction with other cooperative stations, and defines the passive detection frequency band and detection range parameters of each station; specifically, in setting the working frequency band of the station, set the working frequency range of each station as P i (H i , T i ), where H i is site P i The minimum value of the frequency band, T i is site P i The maximum value of the frequency band, then for any two sites, the working frequency range is denoted as P i and P j ,satisfy and And the total working frequency range of each site should cover the frequency range of the concerned radiation source;

[0016] Step 2: This station and other cooperative stations start passive detection. This station...

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Abstract

The invention relates to a target identification method based on cooperative passive detection multidimensional information. The invention aims at a multi-station radar cooperative detection system, and mainly aims to solve the problem that a target platform equipped with a fixed radar combination cannot be identified as it is impossible to simultaneously identify multiple pieces of radar workingat different bands in single-radar passive detection because of limited frequency resources. The method includes the following steps: (1) a local station exchanges information with other cooperative stations, and the detection band and the detection range are made clear; (2) the local station regularly receives a target EDW and model information of radar to which the target EDW belongs transmittedby a current other station; (3) the local station carries out platform correlation calculation, determines important identification platforms, calculates and updates the minimum determination radar set of each important identification platform, and guides the other stations in detection; and (4) when an EDW and the model of radar to which the EDW belongs acquired at a time can completely cover the minimum determination radar set of a platform, the local station carries out range consistency determination, and outputs a platform determination result. According to the invention, the identification accuracy of a passive detection platform can be improved.

Description

technical field [0001] The invention belongs to the technical field of radar cooperative data processing and passive data processing. Background technique [0002] Passive radar detection refers to the generation of Emitter Descriptor Word (EDW) from Pulse Descriptor Word (PDW) formed by signal sorting according to the measurement parameters of emitter signal; on this basis, the generated EDW Compared with the parameters in the radar database, the radar model of the radiation source can be further determined. [0003] A platform may usually be equipped with multiple types of radars and has a fixed radar combination, which makes it an effective way to identify target platforms by identifying fixed radar combinations in passive detection; the radars in these radar combinations usually work in Different frequency bands. Therefore, when a single radar is performing passive detection, it may only be able to detect a certain radar in the radar combination due to the limitation of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/87G01S13/88
Inventor 田田刘鹏匡华星
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND
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