A fast complex-valued adaptive filtering algorithm based on an Euclidean direction set method is proposed in this paper which has a computational complex of O(N). It was also proved theoretically that this algorithm is stable.

• 本文提出了一种基于欧几里德方向集方法的复值快速自适应滤波算法，它的计算复杂度为 O（N），并在理论上证明了该算法的稳定性。