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- Newsgroups: comp.dsp
- Path: sparky!uunet!europa.asd.contel.com!darwin.sura.net!uvaarpa!murdoch!squeeg.psyc.virginia.edu!smb3u
- From: smb3u@squeeg.psyc.virginia.edu (Steven M. Boker)
- Subject: Re: Sliding FFTs
- Message-ID: <1992Sep1.194945.13771@murdoch.acc.Virginia.EDU>
- Sender: usenet@murdoch.acc.Virginia.EDU
- Organization: University of Virginia, Department of Psychology
- References: <BtKDFF.15u.1@cs.cmu.edu> <1992Aug26.062113.10624@ee.ubc.ca>
- Date: Tue, 1 Sep 1992 19:49:45 GMT
- Lines: 19
-
- I used the technique that William so succinctly described to track
- blood flow in the uterine artery from ultrasound data in a study
- at the University of Colorado. Since the reflection of ultrasound
- from a moving target produces a doppler effect, the spectrum of
- frequencies recorded from the reflection of an artery gives a good
- idea of the differing velocities of blood flow in the artery.
-
- Arterial constriction and dyastolic and systolic blood flow could be
- quite easily seen in the resulting sonogram. I released the code
- to the public domain. You can find it in the edsnd package for the
- NeXT at princeton.edu and sonata.cc.purdue.edu.
-
- Steve
-
- --
- #====#====#====#====#====#====#====#====#====#====#====#====#====#====#
- # Steven M. Boker # "Two's bifurcation #
- # smb3u@virginia.edu # but three's chaotic" #
- #====#====#====#====#====#====#====#====#====#====#====#====#====#====#
-