中文摘要：

研究在线盲信号分离问题。将适定盲信号分离的RLS算法，推广到源信号个数未知的超定盲信号分离模型中，利用正交投影方法消除了超定盲信号分离RLS算法的冗余移动，设计出能够稳定收敛的超定盲信号分离RLS算法。仿真实验验证了算法的有效性和其收敛的稳定性。

英文摘要：

The problem of blind source separation is addressed. The RLS algorithm for well-determined blind source separation is generalized to over-determined blind source separation. By canceling the redundant movement of the RLS algorithm for over-determined blind source separation, a new RLS algorithm for over-determined blind source separation which can converge stably is developed. Computer simulation results show the effectiveness and convergent stability of the proposed algorithm