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| Paper: | SPTM-P2.9 |
| Session: | Sampling, Extrapolation, and Interpolation |
| Time: | Tuesday, May 18, 15:30 - 17:30 |
| Presentation: |
Poster |
| Topic: |
Signal Processing Theory and Methods: Sampling, Extrapolation, and Interpolation |
| Title: |
SIGNAL RECOVERY IN TIME-INTERLEAVED ANALOG-TO-DIGITAL CONVERTERS |
| Authors: |
Vijay Divi; Massachusetts Institute of Technology | | |
| | Gregory Wornell; Massachusetts Institute of Technology | | |
| Abstract: |
The main problems that arise in time-interleaving analog-to-digital converters (ADCs) are errors caused by gains in the ADCs and non-uniform sampling times. In this paper, we present an iterative algorithm for blind calibration of time-interleaved ADCs. The algorithm uses the ADC outputs to iterate between estimating the input signal and estimating the unknown gain and time-offsets. The algorithm is shown to perform well for gaussian, bandlimited inputs; tradeoffs exist between amount of oversampling, data block length, and quality of reconstruction. |
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