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Intelligent radar sea target detection system and method

A target detection and radar technology, applied in radio wave measurement systems, instruments, etc., can solve problems such as inability to realize online detection, poor intelligence, etc.

Inactive Publication Date: 2013-01-23
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the shortcomings of existing radar sea target detection methods that cannot realize online detection and poor intelligence, the present invention provides an intelligent radar sea target detection system and method that realizes online detection and has strong intelligence

Method used

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  • Intelligent radar sea target detection system and method
  • Intelligent radar sea target detection system and method
  • Intelligent radar sea target detection system and method

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Experimental program
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Effect test

Embodiment 1

[0095] refer to figure 1 , figure 2 , a kind of intelligent radar sea target detection system, comprises radar 1, database 2 and host computer 3, and radar 1, database 2 and host computer 3 are connected successively, and described radar 1 is irradiated to detected sea area, and radar sea clutter Data is stored in the database 2, and the upper computer 3 includes:

[0096] The data preprocessing module 4 is used for radar sea clutter data preprocessing, which is completed by the following process:

[0097] 1) Collect N radar sea clutter echo signal amplitude x from the database i As a training sample, i=1,...,N;

[0098] 2) Normalize the training samples to obtain the normalized amplitude

[0099] x ‾ i = x i - min x max x - ...

Embodiment 2

[0139] refer to figure 1 , figure 2 , a kind of intelligent radar sea target detection method, described method comprises the following steps:

[0140] (1) Collect N radar sea clutter echo signal amplitude x from the database i As a training sample, i=1,...,N;

[0141] (2) Normalize the training samples to obtain the normalized amplitude

[0142] x ‾ i = x i - min x max x - min x

[0143] Among them, minx represents the minimum value in the training sample, and maxx represents the maximum value in the training sample;

[0144] (3) Reconstruct the normalized training samples to obtain the input matrix X and the corresponding output matrix Y respectively:

[0145]

[0146] ...

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Abstract

The invention relates to an intelligent radar sea target detection system, which comprises a radar, a database and an upper computer, wherein the radar, the database and the upper computer are sequentially connected, the radar is used for illuminating a sea area to be detected, and stores radar sea clutter wave data into the database, and the upper computer comprises a data preprocessing module, a robust forecast model molding module, an intelligent optimizing module, a target detection module, a model updating module and a result display module. The invention also provides an intelligent radar sea target detection method. The invention provides the intelligent radar sea target detection system and method, which can realize on-line detection and have strong intelligence.

Description

technical field [0001] The invention relates to the field of radar data processing, in particular to an intelligent radar sea target detection system and method. Background technique [0002] Sea clutter, that is, radar backscatter echoes from the sea surface. In recent decades, with the in-depth understanding of sea clutter, Germany, Norway and other countries have successively tried to use radar to observe sea clutter to obtain radar wave images to invert wave information, so as to obtain real-time information about the state of the ocean, such as the Wave height, direction and period, etc., so as to further detect small targets at sea, which is of great significance to maritime activities. [0003] Maritime target detection technology plays an important role, and providing accurate target judgment is one of the important tasks of marine radar. The radar automatic detection system makes a judgment under a given detection threshold according to the judgment criterion, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41
Inventor 刘兴高闫正兵
Owner ZHEJIANG UNIV
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