| 引用本文: | 赵滨生.估计相干源数目的一种改进算法.[J].国防科技大学学报,1987,(3):90-98.[点击复制] |
| Zhao Binsheng.An Improved Method for Estimation of the Number of Coherent Sources[J].Journal of National University of Defense Technology,1987,(3):90-98[点击复制] |
|
| |
|
|
| 本文已被：浏览 4648次 下载 5725次 |
| 估计相干源数目的一种改进算法 |
| 赵滨生 |
|
(电子技术系)
|
| 摘要: |
| 本文在W.Wax和T.Kailath提出的估计非相干源数目的信息论判阶法基础上，提出了一种改进算法：空间平滑—信息论判阶法。与WK's方法相比，这种改进的算法可以估计相干源的数目，而且能提高信号源强相关、小分离角及低信噪比情况时估计源数目的准确程度。为了进一步提高估计精度，我们还提出了乘幂的空间平滑—信息论判阶法。计算机仿真结果验证了改进算法的有效性。 |
| 关键词: |
| DOI： |
| 投稿日期：1987-02-22 |
| 基金项目: |
|
| An Improved Method for Estimation of the Number of Coherent Sources |
| Zhao Binsheng |
|
(Department of Electronic Technology)
|
| Abstract: |
| An improved method called spatial smoothing-criteria of information theory is presented based on W.Wax and T.Kailath's criteria of information theoretic used for estimation of the number of noncoherent sources. Compared to the WK's method，this improved one can be used to estimate the number of coherent sources and to raise estimating accuracy in case of high correlation，small-angle-separation or low SNR.
The power spatial smoothing-information theoretic criteria method is also presented in order to obtain higher accuracy. Simulation results have been proved to be of the effectiveness of the improved method. |
| Keywords: |
|
|
