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基于快速S變換時(shí)頻空間模型的電磁干擾復(fù)雜度評(píng)估方法

尹柏強(qiáng),  王署東,  何怡剛,  佐磊,  李兵,  程珍

尹柏強(qiáng), 王署東, 何怡剛, 佐磊, 李兵, 程珍. 基于快速S變換時(shí)頻空間模型的電磁干擾復(fù)雜度評(píng)估方法[J]. 電子與信息學(xué)報(bào), 2019, 41(1): 195-201. doi: 10.11999/JEIT180256
引用本文: 尹柏強(qiáng), 王署東, 何怡剛, 佐磊, 李兵, 程珍. 基于快速S變換時(shí)頻空間模型的電磁干擾復(fù)雜度評(píng)估方法[J]. 電子與信息學(xué)報(bào), 2019, 41(1): 195-201. doi: 10.11999/JEIT180256
Baiqiang YIN, Shudong WANG, Yigang HE, Lei ZUO, Bing LI, Zhen CHENG. Electromagnetic Environment Complex Evaluation Algorithm Based on Fast S-transform and Time-frequency Space Model[J]. Journal of Electronics & Information Technology, 2019, 41(1): 195-201. doi: 10.11999/JEIT180256
Citation: Baiqiang YIN, Shudong WANG, Yigang HE, Lei ZUO, Bing LI, Zhen CHENG. Electromagnetic Environment Complex Evaluation Algorithm Based on Fast S-transform and Time-frequency Space Model[J]. Journal of Electronics & Information Technology, 2019, 41(1): 195-201. doi: 10.11999/JEIT180256

基于快速S變換時(shí)頻空間模型的電磁干擾復(fù)雜度評(píng)估方法

doi: 10.11999/JEIT180256 cstr: 32379.14.JEIT180256
  • 1.

    合肥工業(yè)大學(xué)電氣與自動(dòng)化工程學(xué)院 ??合肥 ??230009

  • 2.

    武漢大學(xué)電氣工程學(xué)院 ??武漢 ??430072

基金項(xiàng)目: 國(guó)家自然科學(xué)基金(61501162, 51577046)，無(wú)損檢測(cè)技術(shù)教育部重點(diǎn)實(shí)驗(yàn)室(南昌航空大學(xué))開放基金(JZ2015SJSY0018)，國(guó)家自然科學(xué)基金重點(diǎn)項(xiàng)目(51637004)，國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFF0102200)
詳細(xì)信息
    作者簡(jiǎn)介:

    尹柏強(qiáng)：男，1983年生，副教授，碩士生導(dǎo)師，研究方向?yàn)閺?fù)雜電磁環(huán)境模擬、分析與評(píng)估

    王署東：男，1992年生，碩士生，研究方向?yàn)閺?fù)雜信號(hào)分析與處理

    何怡剛：男，1966年生，博士，教授，博士生導(dǎo)師，主要研究方向?yàn)閺?fù)雜電磁環(huán)境分析與評(píng)估、智能電網(wǎng)技術(shù)、射頻識(shí)別技術(shù)等

    佐磊：男，1982年生，博士，副研究員，碩士生導(dǎo)師，主要研究方向?yàn)樵O(shè)備狀態(tài)監(jiān)測(cè)與評(píng)估、智能感知技術(shù)及應(yīng)用等

    李兵：男，1973年生，博士，副研究員，碩士生導(dǎo)師，主要研究方向?yàn)榭煽啃灶A(yù)測(cè)、物聯(lián)網(wǎng)技術(shù)應(yīng)用等

    程珍：女，1988年生，博士，講師，碩士生導(dǎo)師，主要研究方向?yàn)閺?fù)雜信號(hào)分析與處理

    通訊作者:

    尹柏強(qiáng)　yinbaiqiang123@163.com

  • 中圖分類號(hào): TN97

Electromagnetic Environment Complex Evaluation Algorithm Based on Fast S-transform and Time-frequency Space Model

  • 1.

    School of Electrical and Automation Engineering, Hefei University of Technology, Hefei 230009, China

  • 2.

    School of Electrical Engineering, Wuhan University, Wuhan 430072, China

Funds: The National Natural Science Foundation of China (61501162, 51577046), The Key Laboratory of Nondestructive Testing (Nanchang Hang Kong University) Opening Foundation, Ministry of Education (JZ2015SJSY0018), The State Key Program of National Natural Science Foundation of China (51637004), The National Key Research and Development Plan (2016YFF0102200)
  • 摘要:

    針對(duì)復(fù)雜電磁環(huán)境電磁干擾復(fù)雜度定性與定量評(píng)估問(wèn)題，該文提出一種基于快速S變換時(shí)頻空間模型的復(fù)雜度評(píng)估方法。利用快速S變換方法同步提取時(shí)域占用度、頻域占用度和能量占用度等評(píng)估指標(biāo)，給出了具體計(jì)算方法。在此基礎(chǔ)上建立快速S變換時(shí)頻空間評(píng)估模型，將時(shí)域、頻域和能量域3維向量的F范數(shù)和均方根作為電磁環(huán)境主觀復(fù)雜度和客觀復(fù)雜度評(píng)估指標(biāo)，克服了傳統(tǒng)電磁干擾復(fù)雜度評(píng)估獨(dú)立參數(shù)定級(jí)不能全面反映電磁干擾整體特性的局限性。仿真結(jié)果表明，采用該模型能有效同步提取時(shí)頻及能量評(píng)估特征參數(shù)，時(shí)頻空間評(píng)估模型能精確反映整體電磁干擾特征；實(shí)驗(yàn)測(cè)試結(jié)果驗(yàn)證了本文所提評(píng)估方法的正確性。

    Abstract:

    For qualitative and quantitative complex evaluation problem of electromagnetic environment. This paper proposes a novel electromagnetic environment complex evaluation algorithm based on fast S-transform and time-frequency space model, which can count time-complex, frequency-complex and energy-complex simultaneously. Meanwhile, the computation methods and concept of qualitative and quantitative evaluation degree are introduced. To overcome the limitations of the traditional methods, F-norm and root-mean-square are selected as two important evaluation indicators, which have the advantage in accurate evaluation. Simulation results show that the proposed method is accurate and effective to reflect the intensity degree of electromagnetic interference; Meanwhile, the interference experiment of bus card confirms the correctness of the time-frequency space model. The experimental test results verify the correctness of the mentioned evaluators.

    • HTML全文

  • 圖  1  時(shí)頻空間模型

    圖  2  快速S變換時(shí)頻空間

    圖  3  仿真信號(hào)S變換2維時(shí)頻等高圖

    圖  4  仿真信號(hào)3維時(shí)頻等高圖

    圖  5  電磁干擾評(píng)估實(shí)驗(yàn)場(chǎng)景

    圖  6  公交卡干擾實(shí)驗(yàn)收發(fā)天線及卡測(cè)試實(shí)驗(yàn)裝置

    圖  7  干擾信號(hào)1作用下的S變換時(shí)頻參數(shù)測(cè)試結(jié)果

    圖  8  干擾信號(hào)2作用下的S變換時(shí)頻參數(shù)測(cè)結(jié)果

    表  1  傳統(tǒng)電磁環(huán)境復(fù)雜度的定級(jí)標(biāo)準(zhǔn)(%)

    定性等級(jí)定量等級(jí)時(shí)間頻率空域
    一般復(fù)雜10～100～100～10
    210～2010～2010～20
    320～3020～3020～30
    輕度復(fù)雜430～4030～4030～40
    540～5040～5040～50
    中度復(fù)雜650～6050～6050～60
    760～7060～7060～70
    870～8070～8070～80
    重度復(fù)雜980～9080～9080～90
    1090～10090～10090～100
    下載: 導(dǎo)出CSV

    表  2  本文電磁環(huán)境復(fù)雜度的定級(jí)標(biāo)準(zhǔn)(%)

    定性等級(jí)定量等級(jí)客觀復(fù)雜度C主觀復(fù)雜度Cm
    一般復(fù)雜10 < C ≤ 0.1 Cm ≥ 2.7
    20.1 < C ≤ 0.82.7 > Cm ≥ 2.4
    30.8 < C ≤ 2.72.4 > Cm ≥ 2.1
    輕度復(fù)雜42.7 < C ≤ 6.42.1 > Cm ≥ 1.8
    56.4 < C ≤ 12.51.8 > Cm ≥ 1.5
    中度復(fù)雜612.5 < C ≤ 21.61.5 > Cm ≥ 1.2
    721.6 < C ≤ 34.31.2 > Cm ≥ 0.9
    834.3 < C ≤ 51.20.9 > Cm ≥ 0.6
    重度復(fù)雜951.2 < C ≤ 72.90.6 > Cm ≥ 0.3
    1072.9 < C ≤ 1000.3 > Cm
    下載: 導(dǎo)出CSV

    表  3  公交卡及電磁干擾信號(hào)參數(shù)表

    信號(hào)樣式信號(hào)時(shí)頻能量參數(shù)
    中心頻率(MHz)持續(xù)時(shí)間(s)帶寬(MHz)接收功率(dB)
    公交卡信號(hào)13.56601.25–20
    干擾信號(hào)113.56600.70–30
    干擾信號(hào)2高斯噪聲(0～400)600～400–70
    下載: 導(dǎo)出CSV

    表  4  客觀復(fù)雜度評(píng)估參數(shù)及定量評(píng)價(jià)結(jié)果

    信號(hào)樣式信號(hào)時(shí)頻能量占用度(%)C (%)
    TPFPEP
    干擾1100 563016.8
    干擾2100100<0.01<0.01
    下載: 導(dǎo)出CSV

    表  5  主觀復(fù)雜度評(píng)估參數(shù)及定量評(píng)價(jià)結(jié)果

    信號(hào)樣式S變換時(shí)頻模型評(píng)估參數(shù)Cm
    tP1 (s)tP2 (s)fP1 (MHz)fP2 (MHz)SP1 (dBm)SP2 (dBm)
    干擾10～600～6013.5613.56–20–300.90
    干擾20～600～6013.560～400–20–700.01
    下載: 導(dǎo)出CSV
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出版歷程
  • 收稿日期:  2018-03-21
  • 修回日期:  2018-08-13
  • 網(wǎng)絡(luò)出版日期:  2018-09-04
  • 刊出日期:  2019-01-01

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