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  • Title: Optimum beamforming for sidelobe reduction in ultrasound imaging.
    Author: Sakhaei SM.
    Journal: IEEE Trans Ultrason Ferroelectr Freq Control; 2012 Apr; 59(4):799-805. PubMed ID: 22547290.
    Abstract:
    A constrained adaptive beamforming in a deterministic sense is considered for side lobe reduction, leading to an adaptive weighting of the uniform delay-and-sum beamformer; based upon this, the coherence factor and other similar methods are interpreted as beamforming methods. A generalized form of the weighting factor for the side lobe reduction is also established. It is shown through simulations that restricting the apodization vector to a parametric representation through a discrete Fourier transform or discrete cosine transform can result in higher quality images with fewer artifacts and enhanced contrast properties compared with images obtained through the coherence factor-like methods.
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