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Target Recognition Method Based on Information Fusion of High-Resolution One-Dimensional Image

A target recognition and high-resolution technology, applied to radio wave measurement systems, instruments, etc., can solve problems such as the inability to provide recognition rates, and achieve the effects of improving target recognition rates, reducing accidental errors, and high recognition rates

Active Publication Date: 2018-10-12
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the attitude angle changes more than 10°, the one-dimensional range image of the target changes greatly. Therefore, in this case, the method of directly using the high-resolution one-dimensional image for recognition cannot provide a qualified recognition rate

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  • Target Recognition Method Based on Information Fusion of High-Resolution One-Dimensional Image
  • Target Recognition Method Based on Information Fusion of High-Resolution One-Dimensional Image
  • Target Recognition Method Based on Information Fusion of High-Resolution One-Dimensional Image

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Embodiment Construction

[0027] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0028] Specific embodiments of the present invention will be further described below.

[0029] Experimental instruments: BSS radar simulation software is used to generate target echoes; Mathworks' MATLAB R2014b is used for data fusion, target length calculation and target recognition.

[0030] Step 1. Set the radar simulation parameters:

[0031] Waveform: Gaussian, square waveform;

[0032] Pulse width: 50us;

[0033] Bandwidth: 200MHz;

[0034] Polarization: horizontal polarization;

[0035] Wavelength: 5cm;

[0036] Pulse repetition frequency: 20Hz;

[0037] Aircraft length: F-15(19.43m), AH-64(15.3m);

[0038] Working distance: 100km;

[0039] Pitch angle: 3°;

[0040] Roll angle: 0°;

[0041] False alarm probability: 0.000001;

[0042] Attitude angle: 0~3°.

[0043] Step 2: Ut...

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Abstract

The target recognition method based on high-resolution one-dimensional image information fusion aims to solve how to fuse the observation results of different radars in the network to improve the resolution. It includes the following steps: Step 1, using BSS to generate two radars with different waveforms, detecting two aircrafts, and obtaining echo data of two different radars; Step 2, performing pulse compression on the echo data to obtain two groups of targets High-resolution one-dimensional images; step 3, two sets of high-resolution one-dimensional images are fused using the weighted average method to obtain a new set of one-dimensional images, wherein the fusion weight is randomly selected between 0 and 1; step 4, the The new high-resolution one-dimensional image obtains the number of sampling points by setting a threshold; step 5, compares the number of sampling points of the new high-resolution one-dimensional image obtained with the preset distance resolution (actual distance between two sampling points) distance) to obtain the length of the target; step 6, using Bayesian classification for target recognition.

Description

technical field [0001] The invention relates to a target recognition method based on fusion of high-resolution one-dimensional image information, which is used for radar target recognition, aims at improving the radar target recognition rate, and belongs to the field of radar target recognition. Background technique [0002] With the rapid development of radar technology and the urgent needs of military applications, the problem of target recognition has been paid more and more attention. Target recognition using high-resolution one-dimensional images has become a research hotspot in the field of radar and signal processing. [0003] When the radar bandwidth is wide enough, the radial distance of the target occupies multiple radar range resolution units, so that the high-resolution radar echo presents a continuous fluctuation characteristic, which is usually called a one-dimensional range profile. H.J.Li and S.H.Yang proposed a method to directly use the high-resolution tar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/41
CPCG01S7/41
Inventor 梁菁张洋刘晓旭余萧峰段珍珍张健
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA