A method and a device for determining a trigger condition for a rare signal event

摘要

A method and a device for determining a trigger condition for presenting a registered signal on a display of an oscilloscope on the basis of a rare signal event in the registered signal. The method and device determines a level-based and/or time-based distribution of frequencies of occurrence from level-based and/or time-based parameters determined from sampled values of the registered signal in a specified corresponding level-raster and/or time raster, and compares the determined level-based and/or time-based distribution of frequencies of occurrence with a previously given corresponding level-based and/or time-based reference-distribution of frequencies of occurrence. A first trigger condition is determined dependent upon an identified difference between corresponding level-based and/or time-based distribution of frequencies of occurrence and corresponding level-based and/or time-based reference-distribution of frequencies of occurrence. A trigger signal is activated if the trigger condition in the registered signal has been overstepped or undercut.

主权项

1. A method for determining a trigger condition on based on a rare signal event in a registered signal, the method comprising:
determining a level-based and/or time-based frequency of occurrence of level-based and/or time-based parameters determined from sampled values of the registered signal in a specified corresponding level-raster and/or time-raster; comparing a distribution of the determined level-based and/or time-based frequencies of occurrence with a previously determined corresponding level-based and/or time-based reference-distribution of frequencies of occurrence; determining the trigger condition dependent upon an identified difference between corresponding level-based and/or time-based distribution of frequencies of occurrence and corresponding level-based and/or time-based reference-distribution of frequencies of occurrence; and activating a trigger signal if the trigger condition occurs in the registered signal.