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基于改進壓縮感知的缺損光纖Bragg光柵傳感信號修復(fù)方法

陳勇 吳春婷 劉煥淋

陳勇, 吳春婷, 劉煥淋. 基于改進壓縮感知的缺損光纖Bragg光柵傳感信號修復(fù)方法[J]. 電子與信息學(xué)報, 2018, 40(2): 386-393. doi: 10.11999/JEIT170424
引用本文: 陳勇, 吳春婷, 劉煥淋. 基于改進壓縮感知的缺損光纖Bragg光柵傳感信號修復(fù)方法[J]. 電子與信息學(xué)報, 2018, 40(2): 386-393. doi: 10.11999/JEIT170424
CHEN Yong, WU Chunting, LIU Huanlin. A Repaired Algorithm Based on Improved Compressed Sensing to Repair Damaged Fiber Bragg Grating Sensing Signal[J]. Journal of Electronics & Information Technology, 2018, 40(2): 386-393. doi: 10.11999/JEIT170424
Citation: CHEN Yong, WU Chunting, LIU Huanlin. A Repaired Algorithm Based on Improved Compressed Sensing to Repair Damaged Fiber Bragg Grating Sensing Signal[J]. Journal of Electronics & Information Technology, 2018, 40(2): 386-393. doi: 10.11999/JEIT170424

基于改進壓縮感知的缺損光纖Bragg光柵傳感信號修復(fù)方法

doi: 10.11999/JEIT170424
基金項目: 

國家自然科學(xué)基金(61071117),重慶市研究生科研創(chuàng)新項目(CYS17235)

A Repaired Algorithm Based on Improved Compressed Sensing to Repair Damaged Fiber Bragg Grating Sensing Signal

Funds: 

The National Natural Science Foundation of China (61071117), The Graduate Student Research Innovation Project of Chongqing (CYS17235)

  • 摘要: 光纖光柵傳感在實際的應(yīng)用中,存在采樣信號數(shù)據(jù)丟失問題,該文提出一種改進重構(gòu)算法的壓縮感知信號修復(fù)方法。根據(jù)缺損信號特征,選取與之匹配的觀測矩陣與稀疏字典?;趬嚎s感知重構(gòu)算法,提出匹配光纖布拉格光柵(FBG)信號特征的自適應(yīng)閾值函數(shù),同時增設(shè)閾值判決條件。分析了信號修復(fù)與傳感測量精度的關(guān)系,采用重建信號的尋峰誤差來驗證信號的修復(fù)效果。仿真結(jié)果顯示,在FBG光譜數(shù)據(jù)缺失30%的情況下,恢復(fù)信號的平均相對誤差為10-6;均方根誤差為0.0707,比對比算法低0.0232~0.1159;且系統(tǒng)平均運行時間遠低于對比算法,表明采用該文算法修復(fù)缺損的FBG傳感信號具有較高的重構(gòu)精度與較好的實用性。
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出版歷程
  • 收稿日期:  2017-05-09
  • 修回日期:  2017-07-21
  • 刊出日期:  2018-02-19

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