| 一种有效的二维DOA估计算法研究 |
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| 引用本文： | 张重阳. 一种有效的二维DOA估计算法研究[J]. 现代电子技术, 2010, 33(23): 71-73 |
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| 作者姓名： | 张重阳 |
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| 作者单位： | 西安铁路职业技术学院电子信息系,陕西西安710014 |
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| 摘 要： | 为了获取用户空间位置，实现通信容量倍增的目的，采用时空DOA矩阵方法，并提出了一种有效的改进算法——时空虚拟DOA矩阵方法。做了60多次Monte—Carlo仿真实验，获得时空DOA矩阵方法和时空虚拟DOA矩阵算法的仿真结果。得到的结论是时空DOA矩阵具有很强的分辨能力，且能解决二维估计中的角度兼并问题，时空虚拟DOA矩阵算法可以估计超过阵元数的信号，具有较高的分辨性能和较好的稳健性。
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| 关 键 词： | DOA估计 时空矩阵 虚拟阵列 算法研究 |
Effective Estimation Algorithm of Two-dimensional DOA |
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| ZHANG Chong-yang. Effective Estimation Algorithm of Two-dimensional DOA[J]. Modern Electronic Technique, 2010, 33(23): 71-73 |
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| Authors: | ZHANG Chong-yang |
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| Affiliation: | ZHANG Chong-yang (Department of Electronic Information, Xi an Railway Vocational Technical Institute, Xi＇ an S710014, China) |
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| Abstract: | A space-time DOA matrix method is adopted and an efficient improved algorithm （virtual space-time DOA matrix method） is proposed to obtain the user space position and realize the multiplication of the communication capacity. The Monte-Carlo simulation experiment was done for 60 times. The simulation results of space-time DOA matrix method and the virtual space-time DOA matrix algorithm were obtained. The results indicate that the space-time DOA matrix is very efficient and has a strong resolution ability, and can solve the problems of angle mergence existing in two-dimensional estimation. The virtual space-time DOA matrix algorithm, which has high resolution performance and is robust, can estimate the signals exceeding the number of array elements. |
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| Keywords: | DOA estimation space-time matrix virtual array algorithm research |
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