Variable Step Size LMS Algorithm Based on Cosine Function

Jingjing Zhang
2018 Proceedings of the 2018 8th International Conference on Manufacturing Science and Engineering (ICMSE 2018)   unpublished
In this paper, a new variable step size LMS algorithm based on cosine function is proposed. The weak signal is difficult to extract, so we constructed a new relationship between the step size and the error signal, which depend on the mathematical transformation of the cosine function, and also analyzed the parameter values which effects the performance of the algorithm mainly. In the noise cancellation system, the performance of the algorithm is simulation by MATLAB software. The result shows
more » ... at the algorithm has better effect during signal denoising, especially in the weak signal extraction which with low SNR(signal to noise ratio), filtering effect is better.
doi:10.2991/icmse-18.2018.128 fatcat:jrejnzkaaffhpdpng6bgxsfway