کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6878927 | 1443106 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Symmetric sum coarray based co-prime MIMO configuration for direction of arrival estimation
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
شبکه های کامپیوتری و ارتباطات
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چکیده انگلیسی
This paper proposes a symmetric co-prime multiple input multiple output (MIMO) configuration for direction of arrival (DOA) estimation, where the transmitter has 4M-1 sensors with spacing of N units and the receiver has 2N-1 sensors with spacing of M units. By separating the transmitter and receiver into two subarrays respectively, the symmetric sum coarray (SSC) exploits four sum coarrays based on the received signal model, and the difference coarray of SSC (DSSC) is developed by vectorizing the sample covariance matrix. The analytical expressions for the coarray aperture, the maximum consecutive integers and the attainable number of unique lags are derived carefully. Compared with the existing configurations, SSC and DSSC can obtain larger number of degrees of freedom (DOFs). Then, the DOA estimation of mutually coherent and uncorrelated targets is employed for illustration. Simulation results demonstrate the effectiveness of proposed configuration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: AEU - International Journal of Electronics and Communications - Volume 94, September 2018, Pages 339-347
Journal: AEU - International Journal of Electronics and Communications - Volume 94, September 2018, Pages 339-347
نویسندگان
Junpeng Shi, Guoping Hu, Xiaofei Zhang, Yu Xiao,