Signal decomposition for wind turbine clutter mitigation

This paper addresses the problem of dynamic clutter mitigation by focusing on the mitigation of the wind turbine clutter from the radar data. The basis pursuit and morphological component analysis approach are used to decompose the radar returns into the sum of oscillatory and transient components. The success of the morphological component analysis rely on sparsity, thus different transform domains needs to be identified correctly to represent each component sparsely. The method is illustrated on a radar data collected from a small custom built radar system to show the success of the proposed algorithm for wind turbine clutter mitigation.

[1]  Marc Teboulle,et al.  A Fast Iterative Shrinkage-Thresholding Algorithm for Linear Inverse Problems , 2009, SIAM J. Imaging Sci..

[2]  Ivan W. Selesnick,et al.  Resonance-based signal decomposition: A new sparsity-enabled signal analysis method , 2011, Signal Process..

[3]  B. T. Perry,et al.  The MIT IAP radar course: Build a small radar system capable of sensing range, Doppler, and synthetic aperture (SAR) imaging , 2012, 2012 IEEE Radar Conference.

[4]  Alan R. Shaffer Testimony of Alan R. Shaffer Director of Plans and Programs Office of the Director of Defense Research and Engineering , 2004 .

[5]  Hao Ling,et al.  Time-Frequency Transforms for Radar Imaging and Signal Analysis , 2002 .

[6]  H. Ling,et al.  Investigation of Doppler Features From Wind Turbine Scattering , 2010, IEEE Antennas and Wireless Propagation Letters.

[7]  FEASIBILITY OF MITIGATING THE EFFECTS OF WINDFARMS ON PRIMARY RADAR , 2003 .

[8]  Ivan W. Selesnick,et al.  Sparse signal representations using the tunable Q-factor wavelet transform , 2011, Optical Engineering + Applications.

[9]  Carmine Clemente,et al.  'The Micro-Doppler Effect in Radar' by V.C. Chen , 2012 .

[10]  Mohamed-Jalal Fadili,et al.  Image Decomposition and Separation Using Sparse Representations: An Overview , 2010, Proceedings of the IEEE.

[11]  I. Daubechies,et al.  An iterative thresholding algorithm for linear inverse problems with a sparsity constraint , 2003, math/0307152.

[12]  José M. Bioucas-Dias,et al.  Fast Image Recovery Using Variable Splitting and Constrained Optimization , 2009, IEEE Transactions on Image Processing.

[13]  Braham Himed,et al.  Doppler-streak attenuation via oscillatory-plus-transient decomposition of IQ data , 2012 .