Alias suppression in pulsed doppler systems

Details Alias suppression in pulsed doppler systems Alias suppression in pulsed doppler systems

1990-11-15

1991-09-17

Jaworski, Francis

Surgery

Truss

Pad

7386125, A61B 800

Patent

active

050485288

ABSTRACT:
A Doppler velocity spectrum produced by radial projection in a two-dimensional Fourier frequency domain is processed to suppress alias spectral terms. The projected spectrum is divided into windows using an iterative algorithm which centers the spectral mean. The window containing data samples which maximizes a weighted score based upon the width and maximal value of samples within the window is used to determine which window contains true spectral components. Spectral components in other windows are then suppressed.

REFERENCES:
patent: 4607642 (1986-08-01), Powers
patent: 4930513 (1990-06-01), Mayo et al.
patent: 4930514 (1990-06-01), Baba et al.
patent: 4955386 (1990-09-01), Nishiyama et al.
patent: 4993417 (1991-02-01), Seo

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