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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Rao, A. Odame, K. |
| Copyright Year | 2015 |
| Description | Author affiliation: Thayer Sch. of Eng., Dartmouth Coll., Hanover, NH, USA (Rao, A.; Odame, K.) |
| Abstract | This paper proposes a system for estimating the short-time bandwidth of wheeze sounds using a network of coupled adaptive bandpass filters. Inherent spectral characteristics of the input signal (wheeze) are exploited to determine its bandwidth. The bandwidth information can be used to reconfigure the overall power consumption of components such as the preamplifier, anti-aliasing filter, drivers and ADC of a wheeze detection system. The simulation results in AMI 0.5 μm with Vdd of 3.3V are presented. The proposed system consumes 34 μW, for a input signal bandwidth of 10kHz. This implementation can be extended to other audio sensor interface systems resulting in bandwidth dependent power consumption. |
| Starting Page | 1 |
| Ending Page | 4 |
| File Size | 2027229 |
| Page Count | 4 |
| File Format | |
| e-ISBN | 9781479972340 |
| DOI | 10.1109/BioCAS.2015.7348301 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2015-10-22 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Couplings Power demand adaptive filters Simulation Bandwidth Harmonic analysis Power harmonic filters bandwidth extraction Convergence |
| Content Type | Text |
| Resource Type | Article |
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