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基于自相关-倒谱联合分析的无人机旋翼转动频率估计方法

宋晨 周良将 吴一戎 丁赤飚

引用本文: 宋晨, 周良将, 吴一戎, 丁赤飚. 基于自相关-倒谱联合分析的无人机旋翼转动频率估计方法[J]. 电子与信息学报, 2019, 41(2): 255-261. doi: 10.11999/JEIT180399 shu
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 and Information Technology, 2019, 41(2): 255-261. doi: 10.11999/JEIT180399 shu

基于自相关-倒谱联合分析的无人机旋翼转动频率估计方法

    作者简介: 宋晨: 男,1992年生,博士生,研究方向为雷达信号处理、目标检测与识别等;
    周良将: 男,1981年生,副研究员,研究方向为合成孔径雷达系统设计、系统误差补偿及其相关信号处理技术;
    吴一戎: 男,1963年生,研究员,中国科学院院士,研究方向为高分辨机载合成孔径雷达及运动补偿技术、SAR信号处理算法、遥感卫星地面处理与应用系统的体系结构、数据处理算法等;
    丁赤飚: 男,1969年生,研究员,研究方向为先进合成孔径雷达系统和信号处理技术、数字信号处理、信息系统技术等
    通讯作者: 周良将,ljzhou@mail.ie.ac.cn
摘要: 准确估计无人机旋翼转动频率对于无人机的检测与识别具有重要意义。该文针对调频连续波雷达的无人机目标回波模型,提出一种自相关-倒谱联合分析的无人机旋翼转动频率估计方法,推导了无人机旋翼转动频率与雷达回波倒谱输出中周期性时延的映射关系,通过加权均衡能够更有效地估计多旋翼无人机旋翼转动频率,弥补了传统方法的不足。通过仿真和实际场景实验验证了方法的有效性。

English

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  • 图 1  雷达观测多旋翼无人机几何模型

    图 2  自相关-倒谱联合估计方法流程图

    图 3  传统方法仿真结果对比

    图 4  仿真结果对比

    图 5  不同方法旋翼转动频率估计误差对比

    图 6  不同旋翼转动频率估计方法处理结果对比

    图 7  旋翼变速转动处理结果

    表 1  雷达系统参数

    参数数值
    中心频率f034.6 GHz
    带宽1.2 GHz
    PRF31.25 kHz
    无人机与雷达距离200 m
    原始回波SNR0 dB
    观测时间1 s
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文章相关
  • 通讯作者:  周良将, ljzhou@mail.ie.ac.cn
  • 收稿日期:  2018-04-27
  • 录用日期:  2018-11-02
  • 网络出版日期:  2018-11-12
  • 刊出日期:  2019-02-01
通讯作者: 陈斌, bchen63@163.com
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