基于一維距離像的艦船目標分類研究
[Abstract]:Ship target recognition based on one dimensional range profile or high resolution range profile (High Range Resolution Profile,HRRP) is an important research direction in the field of radar data processing. As a moving target, the translation sensitivity, attitude sensitivity and amplitude sensitivity of one dimensional range profile are the technical difficulties in this field. This paper focuses on how to improve the rate of ship target recognition based on HRRP and how to build a practical platform for ship target recognition. The main work is as follows: (1) the research background and significance of this field are introduced. The feature extraction, multi-feature fusion and classifier design of one-dimensional range profile are briefly introduced. (2) the data preprocessing technology of one-dimensional range profile is studied. Firstly, the original HRRP data are filtered by low pass filter to reduce the noise interference of sea clutter background and improve the signal-to-noise ratio (SNR). Then, the filtered HRRP data is normalized to reduce the amplitude sensitivity of HRRP. Finally, the translation sensitivity of HRRP is solved by estimating the position of bow and stern. (3) aiming at the attitude sensitivity of HRRP, the traditional feature extraction method is used in this paper. A number of pose insensitive features are extracted for ship target recognition. In order to improve the recognition rate, this paper proposes a warship type recognition algorithm based on compactness measure weighting, which can reflect the weight difference of different features in the recognition process. In addition, this paper improves the traditional feature selection method based on Fisher criterion, proposes a feature selection method based on feature complementarity, and selects an optimal feature subset from the extracted feature set. Experiments show that the algorithm can use fewer features to achieve a higher recognition rate. (4) in order to simulate the process of ship target recognition in real scene as much as possible, this paper designs a multi-functional recognition platform. The main functions of the platform are as follows: receiving or sending the track and HRRP data, displaying the data in real time, processing the imaging data, storing and querying the database, setting up the system, etc.
【學位授予單位】:杭州電子科技大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:E925;TN957.52
【參考文獻】
相關期刊論文 前10條
1 胡玉蘭;趙子銘;片兆宇;;高分辨雷達一維距離像的融合特征識別[J];微型機與應用;2015年04期
2 趙朋亮;曾海兵;陳珂;;高分辨雷達一維距離像研究[J];電子科技;2014年01期
3 李志鵬;馬田香;杜蘭;徐丹蕾;劉宏偉;張子敬;;在雷達HRRP識別中多特征融合多類分類器設計[J];西安電子科技大學學報;2013年01期
4 郭尊華;李達;張伯彥;;雷達高距離分辨率一維像目標識別[J];系統(tǒng)工程與電子技術;2013年01期
5 葉其泳;李輝;;雷達目標特征提取的一種方法[J];電子設計工程;2012年21期
6 楊磊;王曉丹;張玉璽;;一種基于多特征提取的雷達目標識別方法研究[J];電光與控制;2011年12期
7 孫劍波;席澤敏;盧建斌;王靜;;艦船目標一維距離像多姿態(tài)角相關匹配識別[J];艦船電子工程;2011年11期
8 孫菲;梁菁;任杰;劉先康;魏存?zhèn)?;一種基于高階譜特征的艦船目標識別方法[J];艦船科學技術;2011年07期
9 曹賁;馬德寶;張昆帆;;一種基于修正圍線積分雙譜的HRRP特征提取算法[J];信息工程大學學報;2011年02期
10 劉先康;梁菁;任杰;蔣光慶;;基于Fisher判決率加權的修正最近鄰模糊分類器設計[J];艦船科學技術;2010年02期
相關博士學位論文 前2條
1 潘勉;雷達高分辨距離像目標識別技術研究[D];西安電子科技大學;2013年
2 朱R緘,
本文編號:2248709
本文鏈接:http://sikaile.net/kejilunwen/xinxigongchenglunwen/2248709.html