Reconstruction of specular reflectors by iterative image source localization.
作者： Alfonso Rodriguez-Molares , Lasse Løvstakken , Ingvild Kinn Ekroll , Hans Torp
DOI: 10.1121/1.4928036
关键词:
摘要: A method is presented to reconstruct the geometry of specular reflectors with an ultrasonic array based on image source principle. The beam focused at a point in space emulating within medium. transmitted wave interacts reflector and propagates back as if it were generated by source. reflected analyzed sound localization algorithm estimate location, extracted using mirror equation for spherical reflectors. validated experimentally its accuracy studied. Under ideal conditions provides accurate reconstruction position, orientation, radius curvature reflectors, errors Δr -3 dB (signal-to-thermal-noise ratio) SNR(sp) > 7 dB (signal-to-speckle-noise ratio). An iterative scheme proposed arbitrary subdividing boundary into smaller segments. demonstrated both numerically experimentally.
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