CANCELLATION OF WHITE AND COLOR NOISE WITH ADAPTIVE FILTER USING LMS ALGORITHM

In this paper, the performances of adaptive noise cancelling system employing Least Mean Square (LMS) algorithm are studied considering both white Gaussian noise (Case 1) and colored noise (Case 2) situations. Performance is analysed with varying number of iterations, Signal to Noise Ratio (SNR) and tap size with considering Mean Square Error (MSE) as the performance measurement criteria. Results show that the noise reduction is better as well as convergence speed is faster for Case 2 as compared with Case 1. It is also observed that MSE decreases with increasing SNR with relatively faster decrease of MSE in Case 2 as compared with Case 1, and on average MSE increases linearly with increasing number of filter coefficients for both type of noise situations. All the experiments have been done using computer simulations implemented on MATLAB platform.

[1]  Kumbesan Sandrasegaran,et al.  Performance Analysis of Adaptive Noise Canceller Employing NLMS Algorithm , 2015 .

[2]  Shin'ichi Koike,et al.  A class of adaptive step-size control algorithms for adaptive filters , 2002, IEEE Trans. Signal Process..

[3]  K. L. Sudha,et al.  Performance analysis of New Time Varying LMS (NTVLMS) adaptive filtering algorithm in noise cancellation system , 2015, 2015 International Conference on Communication, Information & Computing Technology (ICCICT).

[4]  Curtis Roads,et al.  Composing Electronic Music: A New Aesthetic , 2015 .

[5]  Stephen A. Dyer,et al.  Digital signal processing , 2018, 8th International Multitopic Conference, 2004. Proceedings of INMIC 2004..

[6]  Don P. Mitchell,et al.  Generating antialiased images at low sampling densities , 1987, SIGGRAPH.

[7]  Russ E. Davis,et al.  Red noise and regime shifts , 2003 .

[8]  A. Hall,et al.  Adaptive Switching Circuits , 2016 .

[9]  Leonid G. Kazovsky,et al.  Adaptive filters with individual adaptation of parameters , 1986 .

[10]  Henning Puder,et al.  Step-size control for acoustic echo cancellation filters - an overview , 2000, Signal Process..

[11]  Akira Kanemasa,et al.  An Adaptive-Step Sign Algorithm for Fast Convergence of a Data Echo Canceller , 1987, IEEE Trans. Commun..

[12]  Vartika Anand,et al.  Intelligent Adaptive Filtering For Noise Cancellation , 2013 .

[13]  Bernard Widrow,et al.  Least-mean-square adaptive filters , 2003 .

[14]  Richard W. Harris,et al.  A variable step (VS) adaptive filter algorithm , 1986, IEEE Trans. Acoust. Speech Signal Process..

[15]  V. John Mathews,et al.  A stochastic gradient adaptive filter with gradient adaptive step size , 1993, IEEE Trans. Signal Process..

[16]  I. Ahmad,et al.  CANCELLATION OF MOTION ARTIFACT NOISE AND POWER LINE INTERFERENCE IN ECG USING ADAPTIVE FILTERS , 2013 .

[17]  Sunggeun Yoo,et al.  Advanced sound capturing method with adaptive noise reduction system for broadcasting multicopters , 2015, 2015 IEEE International Conference on Consumer Electronics (ICCE).