GNSS World of China

Volume 47 Issue 6
Dec.  2022
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MA Baotian, GUO Shuli, LIU Shaolin. Direction finding method based on spatial spectrum estimation with less channel quasi calibration[J]. GNSS World of China, 2022, 47(6): 109-113. doi: 10.12265/j.gnss.2022091
Citation: MA Baotian, GUO Shuli, LIU Shaolin. Direction finding method based on spatial spectrum estimation with less channel quasi calibration[J]. GNSS World of China, 2022, 47(6): 109-113. doi: 10.12265/j.gnss.2022091

Direction finding method based on spatial spectrum estimation with less channel quasi calibration

doi: 10.12265/j.gnss.2022091
  • Received Date: 2022-05-24
  • Accepted Date: 2022-05-25
  • Available Online: 2022-07-28
  • Considering the problem that the initial phase value is difficult to estimate which may consequently cause the low precision of direction-finding result with spatial spectrum estimation, in this paper a direction-finding method with spatial spectrum estimation using less channel quasi calibration is studied based on classic multiple signal classification (MUSIC) algorithm. In this method a calibration source is added in each channel, so that initial phase difference of each two channel can be achieved, and its effects to the calculation of covariance matrix be decreased. This method is applied in the direction-finding antenna with five elements and three channels. Test results show that with this method can realize the direction finding of single signal and double signals in complex scenes. Under the condition of low signal to noise ratio (SNR), the direction finding error can still be kept at about 3.5°, and the direction finding accuracy is high. The direction finding results are basically consistent with the direction finding results of the whole channel.

     

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  • [1]
    ALSALTI H A, ABUALNADI D I, ABDALAZEEZ M K, Direction of arrival for uniform circular array using directional antenna elements[C]//IEEE Jordan International Joint Conference on Electrical Engineering and Information Technology (JEEIT), 2021: 83-88. DOI: 10.1109/JEEIT53412.2021.9634136
    [2]
    ZHANG Q T, LIU Y, LONG X D. A cyclostationarity based esprit algorithm for DOA estimation of uniform circular array[C]//IEEE Statistical Signal Processing Workshop (SSP), 2021. DOI: 10.1109/SSP49050.2021.9513864
    [3]
    SELVA J. Efficient wideband DOA estimation through function evaluation techniques[J]. IEEE transactions on signal processing, 2018, 66(12): 3112-3123. DOI: 10.1109/TSP.2018.2824256
    [4]
    SCHMIDT R. Multiple emitter location and signal parameter estimation[J]. IEEE transactions on antennas and propagation, 1986, 34(3): 276-280. DOI: 10.1109/TAP.1986.1143830
    [5]
    张洪铭. 改进MUSIC算法的相干信号DOA估计研究[D]. 舟山: 浙江海洋大学, 2019.
    [6]
    谢诺. 宽带相干信源测向算法研究及实现[D]. 西安: 西安电子科技大学, 2010.
    [7]
    王永德, 陈旗, 黎铁冰. 基于最大似然估计的空间谱测向技术[J]. 计算机数字工程, 2010, 38(9): 123-126,178.
    [8]
    唐柯, 张笑语, 邓又川, 等. 少通道空间谱测向方案研究[J]. 中国无线电, 2020(3): 69-72. DOI: 10.3969/j.issn.1672-7797.2020.03.039
    [9]
    姚昕彤, 王玉文, 刘奇. 基于MUSIC及其改进算法的DOA估计研究[J]. 通信技术, 2021, 54(6): 1363-1369. DOI: 10.3969/j.issn.1002-0802.2021.06.012
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