| 摘要 |
A data management method for a long record length memory that is used for data acquisition writes data samples into an initial circular buffer (18) within the memory having a size equal to a pre-trigger time. When a first trigger event (T) occurs, the data samples are then written into a linear region (20,22) after the circular buffer within the memory. The data sample acquisition in the linear region continues until a post-trigger and new pre-trigger time have elapsed after a last trigger event, at which point the acquisition terminates and the new pre-trigger time becomes a new circular buffer (22) for a next trigger event. In this way all trigger events (T) are captured with associated pre-trigger and post-trigger data.
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