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| Joint DOA and Polarization Estimation with Sparsely Distributed Polarization Sensitive Array |
| SI Weijian ZHOU Jiongsai QU Zhiyu |
| (College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China) |
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Abstract This paper studies the multiple targets’ Direction Of Arrival (DOA) and polarization parameter estimation problem based on the Sparsely Distributed Polarization Sensitive Array (SD-PSA). First of all, the signal model of SD-PSA is set up. Then, by utilizing the space rotational invariance of the proposed array the Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) algorithm is adopted to calculate the signals’ periodic ambiguous but high accuracy DOA estimation. Meanwhile, polarization information and the coarse DOA estimation are derived using the relationship between the sub arrays’ steering vector of the signals. Finally, using the coarse DOA estimation data, the fine and unambiguous estimates of DOA are obtained. In this paper, the adjacent array elements’ spacing of the proposed array is beyond half wavelength of the signal, thus the array extends the two-dimensional physical aperture and reduces the mutual coupling effects to a degree. Accordingly the DOA estimation precision is greatly increased. The simulation results of the algorithm verify the effectiveness of the DOA and polarization estimation.
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Received: 13 July 2015
Published: 26 February 2016
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| Fund: Aviation Science Foundation of China (201401P6001), Fundamental Research Funds for the Central Universities (HEUCF150804) |
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Corresponding Authors:
ZHOU Jiongsai
E-mail: yusenmu@qq.com
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| [1] |
徐友根, 刘志文, 龚晓峰. 极化敏感阵列信号处理[M]. 北京: 北京理工大学出版社, 2013: 1-21.
|
|
XU Yougen, LIU Zhiwen, and GONG Xiaofeng. Signal Processing Based on Polarization Sensitive Array[M]. Beijing: Beijing Institute of Technology Press, 2013: 1-21.
|
| [2] |
NEHORAI A and PALDI E. Vector-sensor array processing for electromagnetic source localization[J]. IEEE Transactions on Signal Processing, 1994, 42(2): 376-398. doi: 10.1109/78. 275610.
|
| [3] |
MIRON S, YANG S, BRIE D, et al. A multilinear approach of direction finding using a sensor-array with multiple scales of spatial invariance[OL]. Https://www.researchgate.net/ publication/278624078, 2015.
|
| [4] |
李京书, 陶建武. 信号 DOA 和极化信息联合估计的降维四元数 MUSIC 方法[J]. 电子与信息学报, 2011, 33(1): 106-111. doi: 10.3724/SP.J.1146.2010.00242.
|
|
LI Jingshu and TAO Jianwu. The dimension reduction quaternion MUSIC algorithm for jointly estimating DOA and polarization[J]. Journal of Electronics & Information Technology, 2011, 33(1): 106-111. doi: 10.3724/SP.J.1146. 2010.00242.
|
| [5] |
ZHANG X, CHEN C, LI J, et al. Blind DOA and polarization estimation for polarization-sensitive array using dimension reduction MUSIC[J]. Multidimensional Systems and Signal Processing, 2014, 25(1): 67-82. doi: 10.1007/s11045-012- 0186-3.
|
| [6] |
WONG K T and ZOLTOWSKI M D. Uni-vector-sensor ESPRIT for multisource azimuth, elevation, and polarization estimation[J]. IEEE Transactions on Antennas and Propagation, 1997, 45(10): 1467-1474. doi: 10.1109/8.633852.
|
| [7] |
ZOLTOWSKI M D and WONG K T. ESPRIT-based 2-D direction finding with a sparse uniform array of electromagnetic vector sensors[J]. IEEE Transactions on Signal Processing, 2000, 48(8): 2195-2204. doi:10.1109/78. 852000.
|
| [8] |
YUAN X. Joint DOA and polarization estimation with sparsely distributed and spatially non-collocating dipole/loop triads[OL]. Arxiv.org/pdf/1308.0072vl.pdf,2013.
|
| [9] |
LIU Z and XU T. Source localization using a Non-Cocentered Orthogonal Loop and Dipole (NCOLD) array[J]. Chinese Journal of Aeronautics, 2013, 26(6): 1471-1476. doi: 10.1016/ j.cja.2013.10.010.
|
| [10] |
WONG K T and YUAN X. “Vector cross-product direction-finding” with an electromagnetic vector-sensor of six orthogonally oriented but spatially non-collocating dipoles/loops[J]. IEEE Transactions on Signal Processing, 2011, 59(1): 160-171. doi: 10.1109/TSP.2010.2084085.
|
| [11] |
LUO F and YUAN X. Enhanced“vector-cross-product” direction-finding using a constrained sparse triangular- array[J]. EURASIP Journal on Advances in Signal Processing, 2012(1): 1-11. doi: 10.1186/1687-6180-2012-115.
|
| [12] |
郑桂妹, 陈伯孝, 杨明磊. 新型拉伸电磁矢量传感器的两维高精度波达方向估计[J]. 系统工程与电子技术, 2014, 36(7): 1282-1290. doi: 10.3969/j.issn.1001-506X.2014.07.10.
|
|
ZHENG Guimei, CHEN Baixiao, and YANG Minglei. High accuracy 2D-DOA estimation with a novel spatially spread electromagnetic vector-sensor[J]. Systems Engineering and Electronics, 2014, 36(7): 1282-1290. doi: 10.3969/j.issn.1001- 506X.2014.07.10.
|
| [13] |
YUAN X. Spatially spread dipole/loop quads/quints: for direction finding and polarization estimation[J]. IEEE Antennas and Wireless Propagation Letters, 2013, 12: 1081-1084. doi: 10.1109/LAWP.2013.2280584.
|
| [14] |
WANG L, CHEN Z, WANG G, et al. Estimating DOA and polarization with spatially spread loop and dipole pair array[J]. Journal of Systems Engineering and Electronics, 2015, 26(1): 44-49. doi: 10.1109/JSEE.2015.00007.
|
| [15] |
郑桂妹, 陈伯孝, 吴渤. 三正交分离式极化敏感阵列的波达方向估计[J]. 电子与信息学报, 2014, 36(5): 1088-1093. doi: 10.3724/SP.J.1146.2013.00967.
|
|
ZHENG Guimei, CHEN Baixiao, and WU Bo. DOA estimation with three orthogonally oriented and spatially spread polarization sensitive array[J]. Journal of Electronics & Information Technology, 2014, 36(5): 1088-1093. doi: 10.3724/SP.J.1146.2013.00967.
|
| [16] |
YUAN X, WONG K T, Xu Z, et al. Various compositions to form a triad of collocated dipoles/loops, for direction finding and polarization estimation[J]. IEEE Sensors Journal, 2012, 12(6): 1763-1771. doi: 10.1109/JSEN.2011.2179532.
|
| [17] |
WONG K T and ZOLTOWSKI M D. Closed-form direction finding and polarization estimation with arbitrarily spaced electromagnetic vector-sensors at unknown locations[J]. IEEE Transactions on Antennas and Propagation, 2000, 48(5): 671-681. doi: 10.1109/8.855485.
|
|
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