English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26987/38787
Visitors : 2292554      Online Users : 43
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40572

Title: An adaptive filtering based on generalized sidelobe cancellation for target detection of hyperspectral images
Authors: Lena Chang;Zay-Shing Tang;Yang-Lang Chang;Bormin Huang
Contributors: 國立臺灣海洋大學:通訊與導航工程學系
Date: 2014
Issue Date: 2017-01-20T06:35:57Z
Publisher: Satellite Data Compression, Communications, and Processing X
Abstract: Abstract: In the study, we proposed an adaptive filter with multiple constrains based on the generalized sidelobe canceller (GSC) structure for target detection of hyperspectral images. The proposed filtering approach can alleviate the performance degradation in target detection caused by estimation errors in spectral signature of the desired target or some random noise by unknown interference. First, we design an optimal filter to minimize the interference effect with multiple constrains including unit gain response on desired target and null response on undesired targets. The optimal filter can detect the desired target, suppress the undesired targets and minimize the interference effect. Next, an adaptive filter with GSC structure is proposed to transform the constrained minimization problem into an equivalent unconstrained minimization. The structure of GSC contains two branches: the upper branch is a filter with fixed weights wf designed by multiple constrains to reserve the desired target and interference; the lower branch contains a blocking matrix B and an adaptive filter with weights wa. Matrix B blocks the desired target and preserve the interference. The adaptive filter can be designed to minimize the interference effect without constrains. Simulations validate the effectiveness of the proposed adaptive filter with GSC structure which is robust to the random errors in spectral signature of the desired target. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/40572
Appears in Collections:[通訊與導航工程學系] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML71View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback