Method and device for identifying target types

A target type and target technology, applied in the field of target type recognition, can solve the problems that the neural network is difficult to achieve the expected effect, the classification recognition technology is difficult to achieve the expected effect, and affects the accuracy of the recognition result, etc., to achieve the effect of improving accuracy

Active Publication Date: 2016-05-04
THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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Problems solved by technology

[0004] However, template matching technology can only be used under specific conditions. Neural network technology requires sufficient sample data, sufficient training for the network, and the convergence of network weight coefficients to the global optimal solution. Otherwise, the neur

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  • Method and device for identifying target types
  • Method and device for identifying target types
  • Method and device for identifying target types

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Embodiment Construction

[0089] The embodiment of the present invention provides a method for object type identification, which improves the accuracy of object type identification.

[0090] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0091] The terms "first", "second" and the like (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects a...

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Abstract

The invention discloses a method and a device for identifying target types. The method comprises steps that a sound signal of a target is acquired through a planar sound transmission array, the target includes any one of a low-altitude aircraft, a light aircraft, a power delta wing, a cruise missile and a power paraglider, the direction of the sound signal is evaluated, spatial filtering processing on the sound signal after direction evaluation is carried out, after spatial filtering processing, characteristics of the sound signal, characteristic vectors corresponding to the characteristics of the sound signal and characteristics of the target are extracted, type confidence of the target is determined according to the characteristics of the sound signal, the characteristic vectors of the sound signal and the characteristics of the target, the type confidence is identified through the fusion identification technology, and thereby the type of the target is determined. Through the method, type identification accuracy of the target is improved.

Description

technical field [0001] The invention relates to the technical field of detection, in particular to a method and device for identifying target types. Background technique [0002] Our country has a vast territory, and important defense targets are distributed across the country. They are easily attacked by high-tech aircraft such as armed helicopters, cruise missiles, and unmanned aircraft. It is urgent to establish a low-altitude target detection and early warning system to protect important areas. The low altitude and small radar cross-section make it difficult for general radar to detect, but the sound radiated by these targets during flight is difficult to eliminate. Using these sounds to locate and identify low-altitude flying targets is the two keys of passive sound detection that modern scholars generally pay attention to. technology. [0003] The acoustic signals radiated by different target types are different. By extracting the voiceprint features of different targ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06N3/02
CPCG06N3/02G06F2218/02G06F2218/08
Inventor 王志峰
Owner THE THIRD RES INST OF CHINA ELECTRONICS TECH GRP CORP
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