Study on New Method of Heart Disturbance Filtering on Measurement of Impedance Pneumograph
نویسندگان
چکیده
The graph of impedance pneumograph often occurred heart disturbance. In order to decrease the disturbance, some traditional hardware and software methods were used. But effects of the filters were limited for the small frequency difference between heart and lung. The paper gave a new filter theory that heart was acted as a variety capacitance, then heart disturbance was decreased by integration of variety capacitance. Test results showed that the new filter theory was feasible and satisfied the requirements of clinic measurement.
منابع مشابه
Detection of high impedance faults in distribution networks using Discrete Fourier Transform
In this paper, a new method for extracting dynamic properties for High Impedance Fault (HIF) detection using discrete Fourier transform (DFT) is proposed. Unlike conventional methods that use features extracted from data windows after fault to detect high impedance fault, in the proposed method, using the disturbance detection algorithm in the network, the normalized changes of the selected fea...
متن کاملA New Similarity Measure Based on Item Proximity and Closeness for Collaborative Filtering Recommendation
Recommender systems utilize information retrieval and machine learning techniques for filtering information and can predict whether a user would like an unseen item. User similarity measurement plays an important role in collaborative filtering based recommender systems. In order to improve accuracy of traditional user based collaborative filtering techniques under new user cold-start problem a...
متن کاملThe use of electrical impedance techniques for the monitoring of respiratory pattern during anaesthesia.
Details are given of the results obtained from anaesthetized patients when an electrical impedance pneumograph was used to continuously monitor respiratory pattern. The method was convenient to use, and faithfully followed changes in pattern. It is necessary to calibrate each patient initially against a spirometer or syringe. The impedance pneumograph is particularly useful when a number of phy...
متن کاملRadiographic Measurement of Vertebral Heart Scale (VHS) in New Zealand White Rabbits
Objective- The aim of the present survey was to evaluate whether the results of cardiac measurements using the VHS are a useful indicator of the origin of normal rabbits. Design- Experimental study. Animals- Forty seven adult healthy New Zealand White rabbits (25 male, 22 female) with age 10-18 months and weight 1.5-2.5 Kg. Procedures- To assess the influence of breed on the vertebral heart ...
متن کاملA New Method to Improve Automated Classification of Heart Sound Signals: Filter Bank Learning in Convolutional Neural Networks
Introduction: Recent studies have acknowledged the potential of convolutional neural networks (CNNs) in distinguishing healthy and morbid samples by using heart sound analyses. Unfortunately the performance of CNNs is highly dependent on the filtering procedure which is applied to signal in their convolutional layer. The present study aimed to address this problem by a...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006