融合多普勒頻移信息的陣列數(shù)據(jù)域直接定位方法

王大鳴; 任衍青; 逯志宇; 巴斌; 崔維嘉

doi:10.11999/JEIT170608

融合多普勒頻移信息的陣列數(shù)據(jù)域直接定位方法

doi: 10.11999/JEIT170608 cstr: 32379.14.JEIT170608

基金項目:

國家自然科學基金(61401513)，國家高技術(shù)研究發(fā)展計劃(2012AA01A502, 2012AA01A505)

計量
- 文章訪問數(shù): 1299
- HTML全文瀏覽量: 155
- PDF下載量: 112
- 被引次數(shù): 0
出版歷程
- 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: 相比于傳統(tǒng)兩步定位方法，直接定位方法具有更高的定位精度，但現(xiàn)有的基于陣列模型的直接定位方法未能夠有效利用多普勒頻移信息，其定位精度有待進一步提升。針對上述問題，該文提出一種融合多普勒頻移信息的陣列數(shù)據(jù)域直接定位方法。首先構(gòu)建了融合多普勒信息的直接定位模型，然后基于最大似然準則將信號源位置估計轉(zhuǎn)化為求解位置信息矩陣最大特征值問題，并結(jié)合矩陣轉(zhuǎn)置性質(zhì)降低復雜度，最后通過2維搜索得到目標信號源位置估計。仿真結(jié)果表明，所提方法較目前的陣列數(shù)據(jù)域直接定位方法和多普勒頻移直接定位方法的定位精度具有較大提高。
- 陣列信號處理 /
- 直接定位 /
- 多普勒頻移 /
- 波達方向
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

參考文獻(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.

馮奇, 曲長文, 周強. 多運動站異步觀測條件下的直接定位算法[J]. 電子與信息學報, 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, 張剛, 沈彩耀, 等. 一種針對恒模信號的運動單站直接定位算法[J]. 航空學報, 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, 張剛. 一種基于窄帶信號多普勒頻率測量的運動目標直接定位方法[J]. 電子學報, 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.

張賢達. 現(xiàn)代信號處理[M]. 第2版, 北京: 清華大學出版社, 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.

田孝華, 周義建. 無線電定位理論與技術(shù)[M]. 北京: 國防工業(yè)出版社, 2011: 40.

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

相關(guān)文章

施引文獻

資源附件(0)

訪問統(tǒng)計