Title:
Group publication title:
Creator:
Gan, K.B. ; Zahedi, E. ; Mohd Ali, M.A.
Contributor:
Gaj, Miron. Redakcja ; Urbańczyk, Wacław. Redakcja
Subject and Keywords:
optyka ; transabdominal ; fetal heart rate ; Monte Carlo simulation ; tissue model
Description:
Optica Applicata, Vol. 41, 2011, Nr 4, s. 885-896
Abstrakt:
In this paper, the Monte Carlo technique is used to determine the optical detection strategies in three-layered (maternal, amniotic fluid and fetal) tissue model. This model is utilized to estimate the transabdominal optical power and optimum source–detector (S–D) separation. Results based on the launching of 2 million photons with 1 mW optical power showed that the expected optical power output is in the range of 10–6–10–10 W/cm2 depending on S–D separation. Considering the limit of the signal processing methods (such as adaptive noise cancelling) and the use of silicon photodetector, an S–D separation of 4 cm has been selected as a practical compromise between signal level and percentage of optical power (70%) coming from the fetal layer. Based on these findings, transabdominal fetal heart rate detection system using NIR and adaptive filtering can be designed and developed.
Publisher:
Oficyna Wydawnicza Politechniki Wrocławskiej
Place of publication:
Date:
Resource Type:
Source:
<sygn. PWr A3481II> ; click here to follow the link ; click here to follow the link
Language:
Relation:
Optica Applicata ; Optica Applicata, Vol. 41, 2011 ; Optica Applicata, Vol. 41, 2011, Nr 4 ; Politechnika Wrocławska. Wydział Podstawowych Problemów Techniki
Rights:
Wszystkie prawa zastrzeżone (Copyright)
Access Rights:
Dla wszystkich w zakresie dozwolonego użytku