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(a) Noise field derived from the last rank singular value and singular vectors from SVD clutter filter. (b) 1-D noise profile obtained by averaging all pixels in (a) along lateral direction at each depth. (c) Smoothed 1-D noise profile. (d) Final equalization noise field obtained by replicating (c) along the lateral dimension. (e) Comparisons of derived noise profiles and measured noise profiles under different TGC settings.
