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Method for modeling dynamic radar environment knowledge base

A modeling method and knowledge base technology, which is applied in the field of radar knowledge assistance, can solve the problem that the radar knowledge base modeling method has not been proposed, and achieve the effect of strong practicability.

Active Publication Date: 2015-07-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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AI Technical Summary

Problems solved by technology

S.Haykin (2006) and J.R.Guerci (2010) both emphasized that the radar should continuously interact with the environment and update the environmental information in their respective cognitive radar concepts, but did not propose a specific radar knowledge base modeling method

Method used

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  • Method for modeling dynamic radar environment knowledge base
  • Method for modeling dynamic radar environment knowledge base
  • Method for modeling dynamic radar environment knowledge base

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Embodiment

[0046] The invention is validated by analyzing and processing real radar scenarios. The detection area is mainly located near Pixian County, Chengdu, such as image 3 shown. The later verification is done on MATLAB-R2014a. The specific implementation steps are as follows:

[0047] S1. Static radar environment knowledge base modeling stage;

[0048] S11. Initialize radar parameters: radar coordinates [N30°45′19.31", E103°55′9.88"], radar maximum range R max =6Km, radar range resolution r=6m, radar angular resolution θ=1°, etc.;

[0049] S12. Establish a Cartesian coordinate system with the radar as the center, and the direction of the ordinate axis is due north;

[0050] S13. Establish each cell (x) with the radar distance resolution r=6m i ,y j ) has a side length of 6 m;

[0051] S14. Sort out the auxiliary knowledge attributes of the radar environment knowledge base, such as digital elevation values, landform coverage types, empirical amplitude distribution models, and...

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Abstract

The invention provides a method for modeling a dynamic radar environment knowledge base. The method comprises two stages; in the first stage, the history knowledge is used for building a static radar environment knowledge base, and each auxiliary knowledge is initialized under a Cartesian coordinate system; in the second stage, the radar environment knowledge base is dynamically updated by instant information and real-time data. The method has the advantages that the radar environment knowledge base is built under the background of a radar knowledge auxiliary system, and the purpose of strong systematicness and practicality is realized.

Description

technical field [0001] The invention belongs to radar knowledge auxiliary technology. Background technique [0002] Modern radar systems are facing more and more complex environments and smaller and smaller target RCS. Traditional radar detection technology has been difficult to solve these challenges. Knowledge-based KB (Knowledge-based) signal processing has always been one of the key technologies to improve the detection performance of traditional radars, and the radar knowledge base provides various prior information for knowledge-based signal processing, which is a key component of KB radar systems. Therefore, the study of radar knowledge base has theoretical value and practical significance to improve the ability of radar to detect weak targets in complex environments. [0003] There have been many researches on knowledge assistance at home and abroad, but in most cases, researchers assume that auxiliary knowledge is predictable for radar systems, and do not care abou...

Claims

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Application Information

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IPC IPC(8): G06F17/30
Inventor 孔令讲卢术平姜海超宋海洋易伟崔国龙杨亚杨建宇杨晓波
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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