Digital filtering in a disease detection system
A low-pass, nonrecursive digital filter has been designed to process data in an automated enzyme immunoassay system. The software implemented filter has been installed in the Intel 80/10 system controller. A low-speed sample rate of three samples per second allowed the filter algorithm to be programmed in the high-level FORTRAN language with a resultant execution speed of 0.6 seconds per day array. Fourier techniques are used to derive a zero phase shift filter algorithm from a frequency domain prototype. The resulting alogrithm is modified by a Hamming window to reduce transients and Gibbs phenomenon oscillations. Observations on the effectiveness of the filter under full system operation indicate a 90% data recovery rate.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 5394617
- Report Number(s):
- LA-UR-83-3423; CONF-831254-2; ON: DE84003820
- Resource Relation:
- Conference: Agricultural electronics - 1983 and beyond conference, Chicago, IL, USA, 11 Dec 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
AUTOMATION
ALGORITHMS
ENZYME ACTIVITY
BIOASSAY
QUANTITATIVE CHEMICAL ANALYSIS
SPECTROPHOTOMETERS
DIGITAL FILTERS
COMPUTER CALCULATIONS
FOURIER ANALYSIS
INFECTIOUS DISEASES
CHEMICAL ANALYSIS
DISEASES
MATHEMATICAL LOGIC
MEASURING INSTRUMENTS
550600* - Medicine
550200 - Biochemistry