【Key words】 Channel estimation； RLS adaptive； Virtual sub-carriers； Sub-space algorithm；
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one-dimension noise sub-space algorithm 一维噪声子空间算法
Furthermore the source number estimation method based on theory of MDL and the algorithm of MUSIC based on sub-space projection technique are also introduced briefly.
并且简单介绍了基于最小描述长度(MDL)原理的信源数目估计方法以及基于子空间投影技术的MU SIC算法。
The improved smooth algorithm based on the characteristic sub-space used deepen the null to fall the depth, enhanced the system's signal to noise ratio.
研究了改进的基于特征子空间的平滑算法，加深了零陷深度，提高了系统的信噪比。
The algorithm divides the whole search space into a number of sub-spaces, which are optimized by utilizing the PSO embedded zero search operators.
该算法通过将整个搜索空间分割成若干子空间，在这些子空间上利用嵌入零搜索算子的微粒群算法进行优化。
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