基于对称天线相位干涉仪的入射角估计及跟踪

魏子翔; 胡永芳; 崔嵬; 吴嗣亮

doi:10.11999/JEIT150013

基于对称天线相位干涉仪的入射角估计及跟踪

doi: 10.11999/JEIT150013

1.
(北京理工大学信息与电子学院北京 100081) ②(上海宇航系统工程研究所上海 201108)

基金项目:

上海航天科技基金(SAST201215)和新世纪优秀人才支持计划(NCET-13-0034)

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出版历程
- 收稿日期: 2015-01-05
- 修回日期: 2015-05-04
- 刊出日期: 2015-10-19

Estimating and Tracking Angle of Arrival via Phase Interferometer with Symmetric Array

1.
(School of Information and Electronics, Beijing Institute of Technology, Beijing 100081, China)
2.
(Shanghai Aerospace System Engineering Institute, Shanghai 201108, China)

摘要

摘要: 针对现有相位干涉仪角度估计算法在近场条件下性能不佳的问题，该文提出一种远近场均性能良好的改进的导向矢量匹配算法。该算法采用对称结构天线接收来波信号，利用近场条件下对称位置天线的到达相位差中距离相关项对消的特性设计新的代价函数。代价函数最大值位置对应的入射角即为目标信号的入射角估计。在此基础上，利用相关函数的梯度正比于角度误差的特性设计角跟踪环路。作为一种局部极值估计算法，角跟踪环路相比其它全局最大值估计算法具有更好的相位噪声鲁棒性。仿真实验验证了该算法在不同相位噪声以及远近场条件下的优良性能。
- 信号处理 /
- 相位干涉仪 /
- 角跟踪环路 /
- 对称阵列 /
- 入射角估计
Abstract: The exiting algorithms for Angle Of Arrival (AOA) estimation of incident signal via phase interferometer may degrade significantly for near-field target. To deal with this issue, a Modified Steering Vector Matching (MSVM) algorithm with the good performance in both far field and near field is proposed. Symmetric array is employed to receive signal. The phase difference of antennas in symmetric position is independent on range as the terms related to range in arriving phases are cancelled. Accordingly, a cost function, which is only related to the AOA in near field, is derived, and the AOA of incident signal can be estimated by finding the maximal value of the cost function. Based on MSVM algorithm, an angle tracking loop is proposed by employing the feature that the gradient of cost function is proportional to the angle error. As a fast algorithm for finding local extremum of cost function, angle tracking loop is obviously more robust than other algorithm searching global maximum in terms of phase noise. Simulations are implemented to verify the excellent performance of angle tracking loop under different phase noise and range scenarios.
- Signal processing /
- Phase interferometer /
- Angle tracking loop /
- Symmetric array /
- Angle Of Arrival (AOA) estimate

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参考文献(30)

Sundaram K R, Mallik R K, and Murthy U M S. Modulo conversion method for estimating the direction of arrival[J]. IEEE Transactions on Aerospace and Electronic Systems, 2000, 36(4): 1391-1396.

袁孝康. 相位干涉仪测向定位研究[J]. 上海航天, 1999, 1(3): 1-6.

Yuan Xiao-kang. Study on direction-finding and position with phase interferometers[J]. Aerospace Shanghai, 1999, 1(3): 1-6.

李东虎. 干涉仪测向系统中的基线配置技术[J]. 无线电工程, 2014, 44(4): 17-19.

Li Dong-hu. Baseline configuration technique in interferometer direction finding system[J]. Radio Engineering, 2014, 44(4): 17-19.

张亮, 徐振海, 熊子源, 等. 基于圆阵干涉仪的被动导引头宽带测向方法[J]. 系统工程与电子技术, 2012, 34(3): 462-466.

Zhang Liang, Xu Zhen-hai, Xiong Zi-yuan, et al.. Wideband direction finding method of passive radar seeker based on circular array phase interferometer[J]. Systems Engineering and Electronics, 2012, 34(3): 462-466.

周亚强, 陈翥, 皇甫堪, 等. 噪扰条件下多基线相位干涉仪解模糊算法[J]. 电子与信息学报, 2005, 27(2): 259-261.

Zhou Ya-qiang, Chen Zhu, Huangfu Kan, et al.. Algorithm of solving multi-baseline interferometer phase difference ambiguity in noisy circumstance[J]. Journal of Electronics Information Technology, 2005, 27(2): 259-261.

狄慧, 刘渝, 杨健, 等. 联合到达时间估计的长基线测向相位解模糊算法研究[J]. 电子学报, 2013, 41(3): 496-501.

Di Hui, Liu Yu, Yang Jian, et al.. Long baseline direction finding unwrapping phase ambiguity algorithm with TOA estimation[J]. Acta Electronica Sinica, 2013, 41(3): 496-501.

朱旭东. 相关处理在干涉测向仪中的应用[J]. 现代雷达, 2003, 1(1): 22-25.

Zhu Xu-dong. Application of correlation method for interferometer direction finder[J]. Modern Radar, 2003, 1(1): 22-25.

张敏, 郭福成, 周一宇, 等. 时变长基线2维干涉仪测向方法[J]. 电子与信息学报, 2013, 35(12): 2882-2888.

Zhang Min, Guo Fu-cheng, Zhou Yi-yu, et al.. Direction finding method for two-dimension interferometer using the time varying long baseline[J]. Journal of Electronics Information Technology, 2013, 35(12): 2882-2888.

刘建华, 彭应宁, 田立生. 基于方向向量空间距离的干涉仪测向处理方法[J]. 无线电工程, 1999, 29(1): 14-19.

Liu Jian-hua, Peng Ying-ning, and Tian Li-sheng. Space distance of steering vector based algorithm for DOA estimation with phase interferometer[J]. Radio Engineering, 1999, 29(1): 14-19.

李淳, 廖桂生, 李艳斌. 改进的相关干涉仪测向处理方法[J]. 西安电子科技大学学报, 2006, 33(3): 400-403.

Li Chun, Liao Gui-sheng, and Li Yan-bin. A DF method for the improved correlative interferometer[J]. Journal of Xidian University, 2006, 33(3): 400-403.

魏合文, 王军, 叶尚福. 一种基于余弦函数的相位干涉仪阵列DOA估计算法[J]. 电子与信息学报, 2007, 29(11): 2665-2668.

Wei He-wen, Wang Jun, and Ye Shang-fu. An algorithm of estimation direction of arrival for phase interferometer array using cosine function[J]. Journal of Electronics Information Technology, 2007, 29(11): 2665-2668.

Liu Guo-hong and Sun Xiao-ying. Efficient method of passive localization for mixed far-field and near-field sources[J]. IEEE Antennas and Wireless Propagation Letters, 2013, 12: 902-905.

Zhi Wan-jun and Chia Yan-wah. Near-field source localization via symmetric subarrays[J]. IEEE Signal Processing Letters, 2007, 14(6): 409-412.

Liu Guo-hong and Sun Xiao-ying. Two-stage matrix differencing algorithm for mixed far-field and near-field sources classification and localization[J]. IEEE Sensors Journal, 2014, 14(6): 1957-1965.

虞飞, 陶建武, 李京书. 相干声波信号DOA单快拍矢量平滑估计与跟踪算法[J]. 电子学报, 2011, 39(12): 2733-2740.

Yu Fei, Tao Jian-wu, and Li Jing-shu. Direction finding and subspace tracking of coherent acoustic signals with single snapshot smoothing based on vector sensor array[J]. Acta Electronica Sinica, 2011, 39(12): 2733-2740.

刘亮, 陶建武, 黄家才. 基于稀疏对称阵列的近场源定位[J]. 电子学报, 2009, 37(6): 1307-1312.

Liu Liang, Tao Jian-wu, and Huang Jia-cai. Near-field source localization based on sparse symmetric array[J]. Acta Electronica Sinica, 2009, 37(6): 1307-1312.

韩月涛, 吴嗣亮, 王堃, 等. 一种基于有限记忆算法的干涉仪解模糊纠错方法[J]. 宇航学报, 2012, 33(1): 120-127.

Han Yue-tao, Wu Si-liang, Wang Kun, et al.. An ambiguity- resolving error correction method of interferometer based on limited memory algorithm[J]. Journal of Astronautics, 2012, 33(1): 120-127.

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