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Swarm-intelligence high-precision radar sea clutter prediction system

A technology for forecasting systems and sea clutter, applied to radio wave measurement systems, instruments, etc., can solve problems such as low forecasting accuracy

Inactive Publication Date: 2018-12-11
ZHEJIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the influence of the traditional radar sea clutter forecasting method of artificially selecting parameters and the shortcomings of low forecasting accuracy, the present invention provides a parameter adaptive, swarm intelligent and high-precision radar sea clutter forecasting system

Method used

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  • Swarm-intelligence high-precision radar sea clutter prediction system
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  • Swarm-intelligence high-precision radar sea clutter prediction system

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Embodiment Construction

[0068] The present invention will be described in detail below according to the accompanying drawings.

[0069] refer to figure 1 , figure 2 , a swarm intelligent and high-precision radar sea clutter forecasting system, including 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 illuminates the detected sea area, and The radar sea clutter data is stored in the database 2, and the upper computer 3 includes:

[0070] Data preprocessing module 4: Preprocessing the radar sea clutter data input from the database, the following process is used to complete:

[0071] (1) Collect N radar sea clutter echo signal amplitude x from the database i As a training sample, i=1,2,...,N;

[0072] (2) Normalize the training samples to obtain the normalized amplitude

[0073]

[0074] Among them, min x represents the minimum value in the training sample, and max x represents the maximum value in the t...

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Abstract

The invention discloses a swarm-intelligence high-precision radar sea clutter prediction 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 and prediction on the sea clutter data in the database; and the upper computer comprises a data preprocessing module, an extreme learning machine modeling module, an improved gravity search algorithm optimization module, a sea clutter prediction module, a discrimination model updating module and a results display module. The invention also provides a radar sea clutter prediction method for optimizing the extreme learningmachine based on the improved gravity search algorithm. The radar sea clutter prediction system and the method provided in the invention can realize swarm intelligence optimization and high precision.

Description

technical field [0001] The invention relates to the field of radar data processing, in particular to a swarm intelligent and high-precision radar sea clutter forecasting system. Background technique [0002] Sea clutter, that is, backscattered echoes from a patch of sea illuminated by radar transmissions. Because sea clutter severely restricts the detectability of radar echoes from "point" targets on or near the sea surface, such as navigational buoys and ice blocks floating on the sea, the study of sea clutter has a great impact on the ocean background. The detection performance of ships and other targets has a very important impact, so it has important theoretical significance and practical value. [0003] Habitual Shanghai clutter is regarded as a single random process, such as lognormal distribution, K distribution, etc. However, these models have their specific limitations in practical applications. One of the important reasons is that the seemingly random waveforms o...

Claims

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Application Information

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IPC IPC(8): G01S7/41
CPCG01S7/417G01S7/414
Inventor 刘兴高张淼
Owner ZHEJIANG UNIV
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