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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Richards, T.C. |
| Copyright Year | 2006 |
| Description | Author affiliation: Defence R&D Canada, Halifax, NS (Richards, T.C.) |
| Abstract | A technique to determine the dynamic operating characteristics of multiple A/D converters using the multiple coherence function is presented. The approach is based on well established data processing techniques, namely the Welch modified periodogram spectra estimates and the multiple input/output analysis of Bendat and Piersol. The residual error spectral density, representing the portion of the signal not linearly accounted for by the other channels is interpreted in terms of the quantization noise of the individual devices. The technique is applied to two different multi-channel DAQ cards of different quality and it is shown that the noise characteristics of all the channels can be determined in a single measurement. The technique is shown to work best with white noise inputs but can be applied to a sine wave input if a rectangular data window is used |
| Starting Page | 1648 |
| Ending Page | 1653 |
| File Size | 515988 |
| Page Count | 6 |
| File Format | |
| ISBN | 0780393597 |
| ISSN | 10915281 |
| DOI | 10.1109/IMTC.2006.328188 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-04-24 |
| Publisher Place | Italy |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Testing Frequency domain analysis Biosensors Coherence Delay estimation Noise measurement White noise Analog-digital conversion Signal analysis Geophysics multiple coherence analog to digital converter A/D characteristics bit noise effective number of bits ENOB coherence multiple channel spectral density frequency domain |
| Content Type | Text |
| Resource Type | Article |
| Subject | Instrumentation Electrical and Electronic Engineering |
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