融合多普勒频移信息的阵列数据域直接定位方法

王大鸣; 任衍青; 逯志宇; 巴斌; 崔维嘉

doi:10.11999/JEIT170608

融合多普勒频移信息的阵列数据域直接定位方法

doi: 10.11999/JEIT170608

基金项目:

国家自然科学基金(61401513)，国家高技术研究发展计划(2012AA01A502, 2012AA01A505)

计量
- 文章访问数: 1247
- HTML全文浏览量: 147
- PDF下载量: 109
- 被引次数: 0
出版历程
- 收稿日期: 2017-06-26
- 修回日期: 2018-02-24
- 刊出日期: 2018-05-19

Array-based Direct Position Determination Method Fusing Doppler Frequency Shift Information

Funds:

The National Natural Science Foundation of China (61401513), The National High Technology Research and Development Program of China (2012AA01A502, 2012AA01A505)

摘要

摘要: 相比于传统两步定位方法，直接定位方法具有更高的定位精度，但现有的基于阵列模型的直接定位方法未能够有效利用多普勒频移信息，其定位精度有待进一步提升。针对上述问题，该文提出一种融合多普勒频移信息的阵列数据域直接定位方法。首先构建了融合多普勒信息的直接定位模型，然后基于最大似然准则将信号源位置估计转化为求解位置信息矩阵最大特征值问题，并结合矩阵转置性质降低复杂度，最后通过2维搜索得到目标信号源位置估计。仿真结果表明，所提方法较目前的阵列数据域直接定位方法和多普勒频移直接定位方法的定位精度具有较大提高。
- 阵列信号处理 /
- 直接定位 /
- 多普勒频移 /
- 波达方向
Abstract: The Direct Position Determination (DPD) methods outperform the classic two-step localization methods in localization accuracy, while the existing DPD methods based on array antenna models do not exploit Doppler frequency shift information to improve localization accuracy further. Fusing Doppler frequency shift information, a DPD method based on array antenna model is proposed to overcome the above mentioned shortcoming. Firstly, a DPD model fusing Doppler frequency shift information is constructed. Then, a maximum likelihood estimator is designed and emitters position estimation is transformed to calculating the maximum eigenvalue of the matrix containing location information. The property of eigenvalue keeping unchanged after matrix transpose is used to simplify the calculation. Finally, the emitters position is estimated via a two-dimensional grid search. Simulations show that the proposed method is superior over the DPD methods based on array antenna models and the DPD methods only using Doppler frequency shift information in localization accuracy.
- Array signal processing /
- Direct Position Determination (DPD) /
- Doppler frequency shift /
- Angle Of Arrival (AOA)

HTML全文

参考文献(23)

DEMISSIE B, OISPUU M, and RUTHOTTO E. Localization of multiple sources with a moving array using subspace data fusion[C]. IEEE 11th International Conference on Information Fusion, Cologne, Germany, 2008: 1-7.

YIN Jiexin, WU Ying, and WANG Ding. Direct position determination of multiple noncircular sources with a moving array[J]. Circuits, Systems, and Signal Processing, 2017, 36(10): 4050-4076. doi: 10.1007/s00034-017-0499-4.

TIRER T and WEISS A J. Performance analysis of high resolution direct position determination method[J]. IEEE Transactions on Signal Processing, 2017, 65(3): 544-554. doi: 10.1109/TSP.2016.2621729.

冯奇, 曲长文, 周强. 多运动站异步观测条件下的直接定位算法[J]. 电子与信息学报, 2017, 39(2): 417-422. doi: 10.11999 /JEIT160314.

FENG Qi, QU Changwen, and ZHOU Qiang. Direct position determination using asynchronous observation of multiple moving sensors[J]. Journal of Electronics Information Technology, 2017, 39(2): 417-422. doi: 10.11999/JEIT 160314.

WEISS A J. Direct position determination of narrowband radio frequency transmitters[J]. IEEE Signal Processing Letters, 2004, 11(5): 513-516. doi: 10.1109/LSP.2004.826501.

AMARA and WEISS A J. Direct position determination of multiple radio signals[C]. 2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, Montreal, 2004(2): 81-84. doi: 10.1109/ICASSP.2004. 1326199.

AMAR A and WEISS A J. A decoupled algorithm for geolocation of multiple emitters[J]. Signal Processing, 2007, 87(10): 2348-2359. doi: 10.1016/j.sigpro.2007.03.008.

王鼎, 张刚, 沈彩耀, 等. 一种针对恒模信号的运动单站直接定位算法[J]. 航空学报, 2016, 37(5): 1622-1633. doi: 10.7527 /s1000-6893.2015.0347.

WANG Ding, ZHANG Gang, SHEN Caiyao, et al. A direct position determination algorithm for constant modulus signals with single moving observer[J]. Acta Aeronautica et Astronautica Sinica, 2016, 37(5): 1622-1633. doi: 10.7527/ s1000-6893.2015.0347.

OFER B S and WEISS A J. Direct emitter geolocation under local scattering[J]. Signal Processing, 2015, 117(5): 102-114. doi: 10.1016/j.sigpro.2015.05.003.

TZAFRI L and WEISS A J. High resolution direct position determination using MVDR[J]. IEEE Transactions on Wireless Communications, 2016, 15(9): 6449-6461. doi: 10.1109/TWC.2016.2585116.

AMAR A and WEISS A J. Localization of narrowband radio emitters based on Doppler frequency shifts[J]. IEEE Transactions on Signal Processing, 2008, 56(11): 5500-5508. doi: 10.1109/TSP.2008.929655.

LI Jinzhou, YANG Le, GUO Fucheng, et al. Coherent summation of multiple short-time signals for direct positioning of a wideband source based on delay and Doppler [J]. Digital Signal Processing, 2016, 48(C): 58-70. doi: 10.1016 /j.dsp.2015.09.008.

王鼎, 张刚. 一种基于窄带信号多普勒频率测量的运动目标直接定位方法[J]. 电子学报, 2017, 45(3): 591-598. doi: 10.3969/j.issn.0372-2112.2017.03.013.

WANG Ding and ZHANG Gang. A direct localization method for moving narrowband source based on Doppler frequency shift[J]. Acta Electronica Sinica, 2017, 45(3): 591-598. doi: 10.3969/j.issn.0372-2112.2017.03.013.

WANG Yunlong, WU Ying, and YI Shanchao. An efficient direct position determination algorithm combined with time delay and Doppler[J]. Circuits, Systems, and Signal Processing, 2016, 35(2): 635-649. doi: 10.1007/s00034-015- 0069-6.

OTTERSTEN B, VIBERG M, STOICA P, et al. Exact and Large Sample ML Techniques for Parameter Estimation and Detection in Array Processing[M]. Berlin: Springer, 1993: 15-19.

张贤达. 现代信号处理[M]. 第2版, 北京: 清华大学出版社, 2002: 56-59.

ZHANG Xianda. Modern Signal Processing[M]. Second Edition, Beijing: Tsinghua University Press, 2002: 56-59.

STEIN S. Differential delay/Doppler ML estimation with unknown signals[J]. IEEE Transactions on Signal Processing, 1993, 41(8): 2717-2719. doi: 10.1109/78.229901.

田孝华, 周义建. 无线电定位理论与技术[M]. 北京: 国防工业出版社, 2011: 40.

TIAN Xiaohua and ZHOU Yijian. Theory and Technology of Wireless Location[M]. Beijing: National Defense Industry Press, 2011: 40.

施引文献

资源附件(0)

访问统计