Ultrasound medium characteristics measuring apparatus

Details Ultrasound medium characteristics measuring apparatus Ultrasound medium characteristics measuring apparatus

1986-06-26

1988-02-09

Jaworski, Francis J.

Surgery

Truss

Pad

73602, A61B 1000

Patent

active

047235535

ABSTRACT:
An apparatus for measuring acoustic characteristic values of a medium by sending ultrasound pulses into the medium and analyzing the reflected waves from the medium. Medium characteristic values are extracted from the reflected waves, and spectrum scalloping is eliminated. The present invention executes the nonlinear filtering process, for example, the median filtering process to the spectrums, applies a model spectrum to the filtered result and thereby facilitates measurement of supressing fluctuation even when a small number of space average samples one used, by obtaining .beta. from such model spectrum.

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