Abstract
Participants were given sheets printed with signals of sine waves ranging from a single wave to ones having higher frequencies added. The signals were digitized to give data points at a number of sampling rates, the lowest at the Nyquist-Shannon frequency and up three times that frequency. At sampling rates less than the Nyquist-Shannon frequency, a machine is unable to accurately reconstruct a signal. Hence the aim was to determine a person’s ability to reconstruct signals at sampling rates at and higher than the Nyquist-Shannon frequency. Data showed that the RMS error decreased with signal bandwidth and also with sampling rate. At high sampling rates, participants were able to accurately reconstruct the signal, although this was not consistent across participants. At low sampling rates and low bandwidth, there was a tendency to include frequencies in the estimated signal that were not in the actual signal.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the International MultiConference of Engineers and Computer Scientists 2018, IMECS 2018 |
| Editors | S. I. Ao, Oscar Castillo, Craig Douglas, David Dagan Feng, A. M. Korsunsky |
| Publisher | Newswood Limited |
| Pages | 932-936 |
| Volume | 2 |
| ISBN (Print) | 9789881404886 |
| Publication status | Published - Mar 2018 |
| Event | 26th International MultiConference of Engineers and Computer Scientists (IMECS 2018) - , Hong Kong, China Duration: 14 Mar 2018 → 16 Mar 2018 http://www.iaeng.org/IMECS2018/ |
Publication series
| Name | Lecture Notes in Engineering and Computer Science |
|---|---|
| ISSN (Print) | 2078-0958 |
| ISSN (Electronic) | 2078-0966 |
Conference
| Conference | 26th International MultiConference of Engineers and Computer Scientists (IMECS 2018) |
|---|---|
| Place | Hong Kong, China |
| Period | 14/03/18 → 16/03/18 |
| Internet address |
Research Keywords
- Signal reconstruction
- Nyquist criterion
- signal bandwidth
- sampling rate
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