High-Precision DOA Estimation Method Based on Synthetic Aperture Technique

被引：0
|
作者：
Dou Y. [1 ]
Sun G. [1 ]
Wang Y. [2 ]
Xing M. [1 ]
机构：
[1] National Key Laboratory of Radar Signal Processing, Xidian University, Xi’an
[2] School of Communication and Information Engineering, Xi’an University of Science and Technology, Xi’an
来源：
Journal of Beijing Institute of Technology (English Edition) | 2024年 / 33卷 / 02期
基金：
中国国家自然科学基金;
关键词：
coherent accumulation; direction-of-arrival (DOA) estimation; synthetic aperture;
D O I：
10.15918/j.jbit1004-0579.2023.130
中图分类号：
学科分类号：
摘要：
The existing direction-of-arrival (DOA) estimation methods only utilize the current received signals, which are susceptible to noise. In this paper, a method for DOA estimation based on a motion platform is proposed to achieve high-precision DOA estimation by utilizing past and present signals. The concept of synthetic aperture is introduced to construct a linear DOA estimation model. A DOA fine-tuning method based on the linear model is proposed to eliminate the linear DOA variation, achieving a non-coherent accumulation of DOA estimations. Moreover, the baseband modulation and the phase modulation caused by the range history are compensated to achieve the coherent accumulation of all the DOA estimations. Simulation results show that the proposed method can significantly improve the DOA estimated accuracy at low signal-to-noise ratios (SNR). © 2024 Beijing Institute of Technology. All rights reserved.
引用
收藏
页码：111 / 118
页数：7
相关论文
共 50 条
  • [11] An Improved Aperture and Effective Computation DOA Estimation Method Based on Covariance Differencing Technique
    Pei, Xu
    Cao, Jianshu
    Li, Qing
    2014 SEVENTH INTERNATIONAL SYMPOSIUM ON COMPUTATIONAL INTELLIGENCE AND DESIGN (ISCID 2014), VOL 2, 2014,
  • [12] Research on the high-precision simulation method of spatial distributed synthetic aperture optical interference system
    Lin, Qin
    Fang, Yuedong
    Liu, Jilin
    Zhu, Yue
    Zhang, Lei
    Luo, Baorui
    Li, Mengxu
    Li, Ling
    Huo, Zhuoxi
    SPACE TELESCOPES AND INSTRUMENTATION 2022: OPTICAL, INFRARED, AND MILLIMETER WAVE, 2022, 12180
  • [13] Maneuver Optimization for Synthetic Aperture based DOA estimation of GNSS Jammers
    LaMountain, Gerald
    Closas, Pau
    2020 IEEE/ION POSITION, LOCATION AND NAVIGATION SYMPOSIUM (PLANS), 2020, : 44 - 49
  • [14] An overview of the method of high-precision measuring the aperture diaphragn area
    Chen Xiang-Zi
    Fang Wei
    Wang Yu-Peng
    Yang Zhen-Ling
    Quan Xiang-Qian
    ACTA PHYSICA SINICA, 2013, 62 (16)
  • [15] Research on high-precision DOA estimation of a vector sensor under baffle conditions
    Pang, F. (pangfubin2006@163.com), 1600, Editorial Board of Journal of Harbin Engineering (34):
  • [16] Generalized High-Precision and Wide-Angle DOA Estimation Method Based on Space-Time-Coding Digital Metasurfaces
    Zhou, Qun Yan
    Dai, Jun Yan
    Fang, Zuqi
    Wu, Lijie
    Qi, Zhen Jie
    Wang, Si Ran
    Jiang, Rui Zhe
    Cheng, Qiang
    Cui, Tie Jun
    IEEE INTERNET OF THINGS JOURNAL, 2024, 11 (23): : 38196 - 38206
  • [17] Fast and High-Precision DOA Estimation by Iterative Interpolation on Spatial Fourier Coefficients
    Liu, Yifei
    Zhu, Jun
    Jiang, Kaili
    Tang, Bin
    COMMUNICATIONS, SIGNAL PROCESSING, AND SYSTEMS, 2019, 463 : 1530 - 1537
  • [18] A Practical Method of BLDCM Based on High-precision Estimation of the Rotor Position
    Zhou Aiguo
    Yang Lang
    Pan Qiangbiao
    Shen Yong
    ENGINEERING LETTERS, 2016, 24 (02) : 144 - 150
  • [19] A high-precision binocular method for model-based pose estimation
    Zhou, C
    Tan, DL
    Zhu, F
    2004 8TH INTERNATIONAL CONFERENCE ON CONTROL, AUTOMATION, ROBOTICS AND VISION, VOLS 1-3, 2004, : 1067 - 1071
  • [20] High-precision pulse phase estimation method based on noise characteristics
    School of Aerospace Science and Technology, Xidian University, Xi'an
    710071, China
    Huazhong Ligong Daxue Xuebao, 11 (68-72):
12345