Study of Variable Step Size LMS Adaptive Algorithm Based on Variable Region

• 作 者: QU Yong-yin SHAO Shi-huang JIA
• 机 构: College of Information Engineering,College of Information Science and Technology,The Second Steel Pl
• 出 处: 东华大学学报（英文版）
• 发表日期: 2004年期
• 关键词: variable step size LMS algorithm variable region convergence model identificatio

This paper puts forward a new variable step size LMS adaptive algorithm based on variable region. The step size μ(k) in the algorithm varies with the variation of the region of deviation e (k) to ensure the optimization of the three performance objectives including initial convergent speed,trace ability of the time-varying system and steady disregulation. The paper demonstrates the convergence of the algorithm accompanied by random noise.