Wide field-of-view direction finding with a millimeter wave arbitrary irregular array based on compressed sensing

被引：0
|
作者：
Chen L. [1 ]
Ma W. [1 ]
Rao Z. [1 ]
Wang Y. [1 ]
机构：
[1] School of Information Engineering, Nanchang University, Nanchang
来源：
Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2019年 / 47卷 / 09期
关键词：
Arbitrary irregular array; Compressed sensing; Direction finding; Millimetre wave; Sparsity; Wide field-of-view;
D O I：
10.13245/j.hust.190912
中图分类号：
学科分类号：
摘要：
Due to the short wavelength of millimeter wave, conventional passive direction finding method is difficult to realize wide filed-of-view direction finding.In order to solve the problem, a direction finding method with an arbitrary irregular array based on compressed sensing was proposed in this paper.Based on the principles of the aperture synthesis radiometry and the sparse characteristic of millimeter wave emitters, the system model and the measurement equations were established.The fundamental of adopting an arbitrary irregular array to realize wide field-of-view direction finding and its advantages were presented.Numeric simulations for the validation of the method, the characteristic of wide filed-of-view direction, and the feature of adopting arbitrary irregular arrays were carried out.Further, indoor experiments based on a prototype working at 8 mm band were carried out.The simulation and experimental results match well with the theoretical expectation, which shows the method can solve the problem of wide field-of-view direction finding. © 2019, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.
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页码：67 / 71
页数：4
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