论文信息 - Adaptive noise cancellation using NLMS algorithm in GNU radio

Adaptive noise cancellation using NLMS algorithm in GNU radio

In this paper, an adaptive noise cancellation technique using NLMS algorithm in GNU radio is proposed. In adaptive noise cancellation, the noise free signal is obtained by estimating the noise and interference and then adaptively filtering them out from the received signal. In this method, an adaptive noise canceller recovers the desired signal corrupted by noise using NLMS (Normalised Least Mean Square) algorithm. The experiments are carried out with a normal cosine signal source and an audio signal in GNU Radio. The results obtained show the effective operation of NLMS algorithm in adaptive noise cancellation.

R Gandhiraj | J Adarsh | P Vishak

[1] George-Othon Glentis,et al. Efficient least squares adaptive algorithms for FIR transversal filtering , 1999, IEEE Signal Process. Mag..

[2] A. Hussain,et al. Normalized Least Mean Square adaptive noise cancellation filtering for speaker verification in noisy environments , 2008, 2008 International Conference on Electronic Design.

[3] S. Haykin,et al. Adaptive Filter Theory , 1986 .

[4] K. P. Soman,et al. Modern analog and digital communication systems development using GNU Radio with USRP , 2014, Telecommun. Syst..

[5] K P Soman,et al. Plug-ins for GNU Radio Companion , 2012 .

[6] Durba Satpathy,et al. Noise Cancellation using NCLMS Adaptive Algorithms , 2018 .

[7] R. Gandhiraj,et al. Machine learning plug-ins for GNU Radio Companion , 2014, 2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE).

[8] S. Parker,et al. Correlated noise due to roundoff in fixed point digital filters , 1976 .