A portable phonocardiographic fetal heart rate monitor
Jianfeng Chen; Koksoon Phua; Ying Song; Louis Shue
Circuits and Systems, 2006. ISCAS 2006. Proceedings. 2006 IEEE International Symposium on
Volume , Issue , 0-0 0 Page(s):4 pp. -
Digital Object Identifier   10.1109/ISCAS.2006.1693041
Summary:In this paper we present a portable PDA-based fetal heart monitor that is able to provide instantaneous fetal heart rate (FHR) for the pregnant women. Several signal processing techniques are implemented in our device to make it clear, reliable and ease-to-use. Firstly the spectral subtraction method is used to remove the stationary background noise and the amplitude modulation technique is then employed to make the fetal heart sound more audible. A real time algorithm is proposed to extract the FHR information from the weak and noisy signals. Based on the signal spectrum distribution, a confidence factor (CF) is designed to forecast the reliability of the calculated FHR. CF can also be used to guide the user in locating the optimum auscultation position. Our device has been tested in a local hospital on a sample group of 41 pregnant women. It has been shown that an approximate 75% of the pregnant mothers are able to hear their babies' heart sound clearly by using our device. Tests are also carried out to compare our resulted FHR with the cardiotocography (CTG) records

» View citation and abstract

Log in by entering your IEEE Web Account Username and Password.

IEEE Communications Society members: If you subscribe to the IEEE Electronic Periodicals Package or IEEE Electronic Periodicals Package Plus, you must access your subscription at www.comsoc.org.

Check with your librarian, information professional, or system manager to determine if you need to log in. Please complete the online Technical Support Form if you need assistance.

Select the Purchase History link to access the document. You will have 5 Days after purchase to access the Full Text PDF. Please complete the online Technical Support Form if you need assistance.

• Search and access Abstract records free of charge
• Register for table of contents alerts
• Purchase Full Text PDF documents

» Learn more about subscription options or how to become an IEEE Member.