At first, Matched Subspace Detector (MSD) and Adaptive Subspace Detector (ASD) are derived theoretically.

首先，研究了匹配子空间检测理论和自适应子空间检测理论。

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A new adaptive multi-user detector based on subspace tracking (sp) was proposed, which doesn't need initial matrix and has similar performance as classic algorithm with large computational complexity.

提出了一种新的基于子空间跟踪(SP)的自适应多用户检测算法，不需计算初始矩阵，并且检测性能接近高复杂度的经典算法。

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