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基于自相關(guān)-倒譜聯(lián)合分析的無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法

宋晨,  周良將,  吳一戎,  丁赤飚

宋晨, 周良將, 吳一戎, 丁赤飚. 基于自相關(guān)-倒譜聯(lián)合分析的無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2019, 41(2): 255-261. doi: 10.11999/JEIT180399
引用本文: 宋晨, 周良將, 吳一戎, 丁赤飚. 基于自相關(guān)-倒譜聯(lián)合分析的無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法[J]. 電子與信息學(xué)報(bào), 2019, 41(2): 255-261. doi: 10.11999/JEIT180399
Chen SONG, Liangjiang ZHOU, Yirong WU, Chibiao DING. An Estimation Method of Rotation Frequency of Unmanned Aerial Vehicle Based on Auto-correlation and Cepstrum[J]. Journal of Electronics & Information Technology, 2019, 41(2): 255-261. doi: 10.11999/JEIT180399
Citation: Chen SONG, Liangjiang ZHOU, Yirong WU, Chibiao DING. An Estimation Method of Rotation Frequency of Unmanned Aerial Vehicle Based on Auto-correlation and Cepstrum[J]. Journal of Electronics & Information Technology, 2019, 41(2): 255-261. doi: 10.11999/JEIT180399

基于自相關(guān)-倒譜聯(lián)合分析的無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法

doi: 10.11999/JEIT180399
  • 1.

    微波成像技術(shù)重點(diǎn)實(shí)驗(yàn)室 ??北京 ??100190

  • 2.

    中國科學(xué)院電子學(xué)研究所 ??北京 ??100190

  • 3.

    中國科學(xué)院大學(xué) ??北京 ??100049

詳細(xì)信息
    作者簡(jiǎn)介:

    宋晨：男，1992年生，博士生，研究方向?yàn)槔走_(dá)信號(hào)處理、目標(biāo)檢測(cè)與識(shí)別等

    周良將：男，1981年生，副研究員，研究方向?yàn)楹铣煽讖嚼走_(dá)系統(tǒng)設(shè)計(jì)、系統(tǒng)誤差補(bǔ)償及其相關(guān)信號(hào)處理技術(shù)

    吳一戎：男，1963年生，研究員，中國科學(xué)院院士，研究方向?yàn)楦叻直鏅C(jī)載合成孔徑雷達(dá)及運(yùn)動(dòng)補(bǔ)償技術(shù)、SAR信號(hào)處理算法、遙感衛(wèi)星地面處理與應(yīng)用系統(tǒng)的體系結(jié)構(gòu)、數(shù)據(jù)處理算法等

    丁赤飚：男，1969年生，研究員，研究方向?yàn)橄冗M(jìn)合成孔徑雷達(dá)系統(tǒng)和信號(hào)處理技術(shù)、數(shù)字信號(hào)處理、信息系統(tǒng)技術(shù)等

    通訊作者:

    周良將　ljzhou@mail.ie.ac.cn

  • 中圖分類號(hào): TN957.51

An Estimation Method of Rotation Frequency of Unmanned Aerial Vehicle Based on Auto-correlation and Cepstrum

  • 1.

    National Key Laboratory of Microwave Imaging Technology, Beijing 100190, China

  • 2.

    Institute of electronics, Chinese Academy of Sciences, Beijing 100190, China

  • 3.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • 摘要:

    準(zhǔn)確估計(jì)無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率對(duì)于無人機(jī)的檢測(cè)與識(shí)別具有重要意義。該文針對(duì)調(diào)頻連續(xù)波雷達(dá)的無人機(jī)目標(biāo)回波模型，提出一種自相關(guān)-倒譜聯(lián)合分析的無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法，推導(dǎo)了無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率與雷達(dá)回波倒譜輸出中周期性時(shí)延的映射關(guān)系，通過加權(quán)均衡能夠更有效地估計(jì)多旋翼無人機(jī)旋翼轉(zhuǎn)動(dòng)頻率，彌補(bǔ)了傳統(tǒng)方法的不足。通過仿真和實(shí)際場(chǎng)景實(shí)驗(yàn)驗(yàn)證了方法的有效性。

    Abstract:

    Accurately estimating rotor rotation frequency of Unmanned Aerial Vehicle (UAV) is of great significance for UAV detection and recognition. For the UAV target echo model of LFMCW (Linear Frequency Modulated Continuous Wave) radar, this paper proposes an auto-correlation and cepstrum to estimate the rotor rotation frequency of UAV, which derives the mapping relationship between the rotor rotation frequency of UAV and the periodic delay in the radar echo cepstrum output, and more effectively estimates the rotor frequency of multi-rotor UAV by weighted equilibrium, making up for the shortages of traditional methods. The effectiveness of the method is verified by simulation and real scene experiments.

    • HTML全文

  • 圖  1  雷達(dá)觀測(cè)多旋翼無人機(jī)幾何模型

    圖  2  自相關(guān)-倒譜聯(lián)合估計(jì)方法流程圖

    圖  3  傳統(tǒng)方法仿真結(jié)果對(duì)比

    圖  4  仿真結(jié)果對(duì)比

    圖  5  不同方法旋翼轉(zhuǎn)動(dòng)頻率估計(jì)誤差對(duì)比

    圖  6  不同旋翼轉(zhuǎn)動(dòng)頻率估計(jì)方法處理結(jié)果對(duì)比

    圖  7  旋翼變速轉(zhuǎn)動(dòng)處理結(jié)果

    表  1  雷達(dá)系統(tǒng)參數(shù)

    參數(shù)數(shù)值
    中心頻率f034.6 GHz
    帶寬1.2 GHz
    PRF31.25 kHz
    無人機(jī)與雷達(dá)距離200 m
    原始回波SNR0 dB
    觀測(cè)時(shí)間1 s
    下載: 導(dǎo)出CSV
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  • 收稿日期:  2018-04-27
  • 修回日期:  2018-11-02
  • 網(wǎng)絡(luò)出版日期:  2018-11-12
  • 刊出日期:  2019-02-01

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