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Intelligent SAR radar marine ship target identification system

A target recognition and radar technology, applied to radio wave measurement systems, instruments, etc., can solve problems such as insufficient research and poor model effects

Inactive Publication Date: 2018-09-04
ZHEJIANG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, ship target detection based on SAR images has been widely studied, but ship target classification and recognition has just started due to the limitation of SAR image resolution, and some existing research results are not thorough enough, so the effect of the model is not very good

Method used

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  • Intelligent SAR radar marine ship target identification system
  • Intelligent SAR radar marine ship target identification system
  • Intelligent SAR radar marine ship target identification system

Examples

Experimental program
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Embodiment

[0081] refer to figure 1 , figure 2 , an intelligent SAR radar marine ship target recognition system, comprising a SAR radar 1, a database 2 and a host computer 3, the SAR radar 1, the database 2 and the host computer 3 are connected in sequence, and the SAR radar 1 irradiates the monitored sea area, And the SAR radar image is stored in the database 2, and the upper computer 3 includes:

[0082] Image preprocessing module 4, in order to carry out SAR radar image data preprocessing, adopts following process to finish:

[0083] 1) The gray level of the SAR image transmitted from the database is L, f(x 0 ,y 0 ) is the pixel point (x 0 ,y 0 ), the gray value at g(x 0 ,y 0 ) is the pixel point (x 0 ,y 0 ), the average value of pixels in the N×N neighborhood of ), where x 0 ,y 0 respectively represent the abscissa and ordinate of the pixel;

[0084] 2) By calculating the number of pixels h(m,n) satisfying f=m and g=n, the two-dimensional joint probability density p is o...

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Abstract

The invention discloses an intelligent SAR radar marine ship target identification system. The system comprises a SAR radar, a database and an upper computer. The SAR radar, the database and the uppercomputer are successively connected. The SAR radar carries out real-time monitoring on a sea area and image data acquired by the SAR radar is stored in the database. The upper computer comprises an image preprocessing module, a characteristic extraction module, a characteristic selection module, a classifier training module, an intelligent optimization searching module, and a result display module. The invention provides the high-precision marine ship target identification system capable of realizing on-line identification.

Description

technical field [0001] The invention relates to the field of radar data processing, in particular to an intelligent SAR radar marine ship target recognition system. Background technique [0002] Modern maritime search and rescue, maritime monitoring, maritime search and rescue and other maritime tasks are completed in a highly information-based technical support environment. In order to obtain maritime task information such as maritime search and rescue, maritime monitoring, and maritime search and rescue, a large number of sensors are used. The traditional sensor network is composed of radar / photoelectric detection of aircraft and ships, sonar of submarines, and ground / marine reconnaissance and surveillance, and these types of sensors are non-imaging sensors, which are detected and identified by these types of sensor information. The results often only show the distance, orientation, and type of the target (such as surface, underwater, and air), and it is difficult to intui...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 刘兴高吴俊
Owner ZHEJIANG UNIV
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