我们对这类算法的收敛速率做了估计，最后还给出了其单调收敛定理。

We estimate the convergence rate of this method and give its monotone convergence theorems.

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但盲估计算法，如子空间分解法等，需要较大的样本值，收敛速率慢，不利于实时信道估计。

But the blind estimation algorithm, for example, the sub-space decomposition, is not good for real time estimation because it requires large received signals, and has low estimation convergence rate.

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