RECONSTRUCTION METHOD FOR JITTER TOLERANT DATA-ACQUISITION SYSTEM

A waveform digitizing system tolerant to deterministic jitter can be o btained by isolating the deterministic part of the jitter and calibrat ing the system to eliminate its effects. Calibration of the system can be made from measured nonuniform sampling times. It will be shown tha t this nonuniform samples, we use the Shannon at uniformly spaced samp ling times. To reconstruct a signal from its nonuniform samples, we us e the Shannon expansion combined with a time stretching/compressing me thod. Moreover, the reconstruction of a signal from a finite number of samples introduces a truncation error. We propose, using a windowing technique, to reduce the truncation error, which improves considerably the resolution, or the number of effective bits of an analog to digit al conversion system.