A high-speed gated baseline restorer and its implementation in a blood cell volume analyser

TY - JOUR

T1 - A high-speed gated baseline restorer and its implementation in a blood cell volume analyser

AU - Abel, E. W.

AU - Inglis, S.

AU - Liu, Y.

AU - Belch, J. J. F.

AU - Koop, A.

PY - 1997/4

Y1 - 1997/4

N2 - Accurate measurement of the height of individual pulses in a signal that is a.c.-coupled is dependent upon correcting a changing baseline to a constant value. A new fast baseline restorer, using internally triggered gated feedback with gain, has been designed and a version optimized for Gaussian-shaped pulses. Performance is dependent on the magnitudes of both the forward and the feedback gains. The design presented can achieve a 0.5% accuracy in pulse height for a minimum pulse width of 2.5 µs or for 5 µs overlapping pulses as long as the overlap is less than 50%. Typical applications for the baseline restorer include blood cell volume measurement systems, scintillation counters and radiation spectroscopy.

AB - Accurate measurement of the height of individual pulses in a signal that is a.c.-coupled is dependent upon correcting a changing baseline to a constant value. A new fast baseline restorer, using internally triggered gated feedback with gain, has been designed and a version optimized for Gaussian-shaped pulses. Performance is dependent on the magnitudes of both the forward and the feedback gains. The design presented can achieve a 0.5% accuracy in pulse height for a minimum pulse width of 2.5 µs or for 5 µs overlapping pulses as long as the overlap is less than 50%. Typical applications for the baseline restorer include blood cell volume measurement systems, scintillation counters and radiation spectroscopy.

U2 - 10.1016/S1350-4533(96)00061-6

DO - 10.1016/S1350-4533(96)00061-6

M3 - Article

C2 - 9239646

SN - 1350-4533

VL - 19

SP - 267

EP - 272

JO - Medical Engineering and Physics

JF - Medical Engineering and Physics

IS - 3

ER -