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本文利用约束优化问题模型，推导了自适应子空间估计算法．这使得自适应于空间估计的SIM算法成为该算法一个子集，为了充分利用算法的并行流水特性，过分解技术被引入噪声子空间的估计中，同时还讨论了该种算法的Systolic阵列实现结构。
In this paper, we use the constraint optimization problem model to derive an adaptive subspace estimation algorithm. This makes the SIM algorithm adaptive to the spatial estimation become a subset of the algorithm. In order to make full use of the parallel flow characteristics of the algorithm, the over-decomposition technique is introduced into the estimation of the noise subspace. At the same time, the Systolic array implementation structure .