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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Khorbotly, S. Carletta, J.E. |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Electr. & Comp. Eng .& Comp. Sc., Ohio Northern Univ., Ada, OK (Khorbotly, S.) |
| Abstract | With the continuously increasing capabilities of the data acquisition hardware, signals can be sampled at a much higher rate than necessary. In a real-time control application, oversampling noisy signals makes them more difficult to de-noise, particularly when the de-noising must be done in real-time, on embedded hardware, as is the case when de-noising signals in feedback control loops. This work investigates the effect of sampling rate on signal de-noising and shows that appropriately decimating an oversampled noisy signal before it is de-noised can improve the performance of the de-noising process. The work provides a methodology to determine whether or not a signal is oversampled; if it is, the methodology is used to determine the appropriate decimation factor. Two example signals are used. The improvement of the de-noising performance shows the effectiveness of the decimation technique. |
| Starting Page | 926 |
| Ending Page | 929 |
| File Size | 436279 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424421664 |
| ISSN | 15483746 |
| DOI | 10.1109/MWSCAS.2008.4616952 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-08-10 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Noise reduction Frequency domain analysis Noise measurement Real time systems Finite impulse response filter Discrete Fourier transforms Hardware |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering |
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