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本文介绍在多步检测结构中把干扰对消和利用天线阵的自适应MMSE检测器[1] 结合起来 ,并介绍一种新的基于信号子空间估计的检测器。使用这种新的检测器可以使当子空间的维数减少时 ,干扰就从接收到的信号中抵消 ,并用正交投影子空间跟踪估计 (OPAST) [2 ] 来自适应的估计检测器和空间特征。与MMSE检测器相比 ,这种检测器在性能上更优
In this paper, an adaptive MMSE detector [1] combining interference cancellation with antenna array is introduced in the multi-step detection architecture and a new detector based on signal subspace estimation is introduced. Using this new detector allows the interference to be canceled out of the received signal as the dimension of the subspace is reduced and the adaptive estimated detector and space are estimated using orthogonal projection subspace tracking estimation (OPAST) [2] feature. This detector is superior in performance to the MMSE detector