SYSTEMS AND METHODS FOR DERIVING INFORMATION FROM SAMPLED DATA ON A HIGH SPEED DATA ACQUISITION DEVICE

摘要

A method of deriving information from sampled data, for example, in a digital data stream, includes processing the sampled data, for example, in the high-speed data acquisition device to detect an event in the sampled data. The sampled data is converted/transformed to its first derivative representation, and zero crossing information from the first derivative representation of the sampled data is used to determine local minima and maxima and their relative offset in time to a common point in time. Information from, or derived from, the local minima and maxima and the relative offset are provided to an upstream device. The upstream device may process the local minima and maxima and the relative offset, for example, to characterize the event.