Adaptive harmonic jammer canceler

A new adaptive harmonic jammer canceler is proposed. It is based on the use of two sensors that enable an adaptive generation of a reference signal that is uncorrelated with the desired signal. This reference signal is used for the reconstruction of the desired signal by an adaptive subtraction method. This canceler is well suited to radio communications. A theoretical analysis of the convergence of the coupled algorithms is presented with the help of the associated ordinary differential equation introduced by L. Ljung. Numerical simulations illustrate the different proposed algorithms. >

[1]  Thomas Kailath,et al.  Performance analysis of the adaptive line enhancer for sinusoidal signals in broad-band noise , 1988, IEEE Trans. Acoust. Speech Signal Process..

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

[3]  R. Bitmead.  Convergence in distribution of LMS-type adaptive parameter estimates , 1983 .

[4]  J. Glover.  Adaptive noise canceling applied to sinusoidal interferences , 1977 .

[5]  V. Pisarenko.  The Retrieval of Harmonics from a Covariance Function , 1973 .

[6]  B. Widrow,et al.  Adaptive noise cancelling: Principles and applications , 1975 .

[7]  Pierre Priouret,et al.  Adaptive Algorithms and Stochastic Approximations , 1990, Applications of Mathematics.

[8]  Harold J. Kushner,et al.  wchastic. approximation methods for constrained and unconstrained systems , 1978 .

[9]  T. Kailath,et al.  Spatio-temporal spectral analysis by eigenstructure methods , 1984 .

[10]  Phillip A. Regalia,et al.  An adaptive unit norm filter with applications to signal analysis and Karhunen-Loeve transformations , 1990 .

[11]  V. Nollau.  Kushner, H. J./Clark, D. S., Stochastic Approximation Methods for Constrained and Unconstrained Systems. (Applied Mathematical Sciences 26). Berlin‐Heidelberg‐New York, Springer‐Verlag 1978. X, 261 S., 4 Abb., DM 26,40. US $ 13.20 , 1980 .

[12]  T. Kailath,et al.  Least squares type algorithm for adaptive implementation of Pisarenko's harmonic retrieval method , 1982 .

[13]  Robert Boorstyn,et al.  Single tone parameter estimation from discrete-time observations , 1974, IEEE Trans. Inf. Theory.

[14]  F. Hsu,et al.  Digital Whitening Techniques for Improving Spread Spectrum Communications Performance in the Presence of Narrowband Jamming and Interference , 1978, IEEE Trans. Commun..

[15]  John G. Proakis,et al.  Adaptive Algorithms for Estimating and Suppressing Narrow-Band Interference in PN Spread-Spectrum Systems , 1982, IEEE Trans. Commun..