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Agile and adaptive intelligent radar sea target detection system

A target detection and adaptive technology, applied in radio wave measurement systems, instruments, etc., can solve the problems of low detection efficiency and poor adaptive ability.

Inactive Publication Date: 2018-12-11
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 the existing radar sea target detection methods, such as low detection efficiency and poor self-adaptive ability, the present invention provides an agile and self-adaptive intelligent radar sea target detection system

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  • Agile and adaptive intelligent radar sea target detection system
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  • Agile and adaptive intelligent radar sea target detection system

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Embodiment Construction

[0074] The present invention will be described in detail below according to the accompanying drawings.

[0075] refer to figure 1 , figure 2 , an agile adaptive intelligent radar sea target detection system, comprising a radar 1, a database 2 and a host computer 3, the radar 1, the database 2 and the host computer 3 are connected in sequence, the radar 1 irradiates the detected sea area, and The radar sea clutter data is stored in the database 2, and the upper computer 3 includes:

[0076] Data preprocessing module 4: Preprocessing the radar sea clutter data input from the database, the following process is used to complete:

[0077] (1) Collect N radar sea clutter echo signal amplitude x from the database i As a training sample, i=1,2,...,N;

[0078] (2) Normalize the training samples to obtain the normalized amplitude

[0079]

[0080] Among them, min x represents the minimum value in the training sample, and max x represents the maximum value in the training samp...

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Abstract

The invention discloses an agile and adaptive 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 illuminates a detected sea area and radar sea clutter data are stored to the database; the upper computer carries out modeling on the sea clutter data in the database and detects a target; and the upper computer comprises a data preprocessing module, a dynamic fuzzy neural network modeling module, a differential evolution algorithm optimization 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 for optimizing the dynamic fuzzy neural network based on the differential evolution algorithm. Thus, the agile and adaptive radar sea target detection system and the method are provided.

Description

technical field [0001] The invention relates to the field of radar data processing, in particular to an agile adaptive intelligent radar sea target detection system. 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,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/417G01S7/414
Inventor 刘兴高张淼
Owner ZHEJIANG UNIV