A transputer-based physiological signal processing system. Part 1—System design

✍ Scribed by D.M. Cowan; E.R.I. Deane; T.M. Robinson; J.W. Lee; V.C. Roberts

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 1006 KB
• Volume: 17
• Category: Article
• ISSN: 1350-4533
• DOI: 10.1016/1350-4533(94)00004-s

✦ Synopsis

This papr, thejirrt oflwo, details &he desip and in-vitro t&ing ofa transj.n&r-based physiologiral sipml proce~.ring system. ?'he hwti of the syslem is a transputer-based digital signnl processing (DSP) board which ran act as n stnndnlonr spe~~~rn ma&r, desired to ofwrute in the ~ud~~~re~~~~l~ band I@ to 25 kHz. The board ~o~?~~~r~~se~~ a 7'800 prorr~ss~)r, two '4 100 tra~~~a~ jiltm, 12 bit A-1) cirmitT ~~~~bl~ qf ,~~~rnp~~~~ zip to 48 kHz, rnpmon end addrm mapper. 7%~ initial application of the system i,c ,fi~ lhp detection of ~ar~v arlers'al disease. For this the DSP board is harnessrd lo the front end of a multigale pulsrd ~oj@er ultrasound smnner operating at 4.8 MHz inwn-&ion frquenq and inrorporating n vessel wall tracking unit. The complete system perJorms a Four&~ tran~s~onn on UW bncksca&red signals, providing spectral information on, discMe areas o/flow { 0.6 mm') IIC~O.SS thv UQS.SQ~ lumtv in rpnl &w. This ,j&:ct p@r describers Iha hardware, anal the sc~ond dc&ibp.s thp ~~fo~cc~r~ frstitg oJ Ihe sgsivm on the benrh and an ~~~sessr~t of its abili~ to detert 1070 prlc stmom during .skw~~~ JIou~.