摘要
对变步长自适应滤波算法进行了讨论,对VS-LMS算法进行了改进,建立了步长因子μ与误差信号e(n)之间另一种新的非线性函数关系.理论分析和计算机仿真结果表明,该关系不仅具有原有算法收敛速度快的优点,而且在低信噪比环境下比原有算法具有更好的抗噪声性能.
Some algorithms of variable step size LMS adaptive filtering are studied. The VS-LMS algorithm is improved. Another new non-linear function between μ and e （ n ） is established. The theoretic analysis and computer simulation results show that this algorithm converges more quickly than the original. Furthermore, better antinoise property is exhibited under Low-SNR environment than the original one.
出处
《应用科技》
CAS
2006年第6期80-82,共3页
Applied Science and Technology
关键词
自适应滤波
变步长自适应滤波算法
LMS算法
adaptive filtering
variable step size adaptive filtering algorithm
LMS algorithm
