Patent ID: 6524248
Filing Date: 2003-02-25
Classification: A61B,G01S

Abstract:
An apparatus to enhance wave reception comprising:a source and a receiver, where an intended wave propagates from said source to said receiver in an inhomogeneous medium, where said receiver produces received signals, and where said inhomogeneous medium is an approximately homogeneous medium contains an irregularity that is localized, and said irregularity causes said intended wave to be a distorted wave that is equivalent to a summation of an ideal wave and a distortion wave, where said ideal wave is equal to said intended wave had there been no said irregularity, and a forward propagation relay device that causes continued propagation of said distorted wave by secondary transmission of said received signals, and said continued propagation takes place in an approximately homogenous medium, where said continued propagation of said ideal wave and said continued propagation of said distortion wave results in a continued ideal wave and a continued distortion wave respectively, and said forward propagation device enables selective measurement 'f said distortion wave, and a device to sense and measure said continued distortion wave, and a device to determine correction signals from measurement results, and a device to retain replicas of said signals from said receiver, and a device to apply said correction signals to said replicas to suppress effects of said distortion wave, and a device to produce an output signal that is approximately not affected by said irregularity.