| 摘要 |
A controller (124) analyzes a set of OTDR return data stored in a memory (134) and determines if a particular event is an echo by comparing its measured location and/or amplitude (loss) with calculated locations (208) and amplitudes for various-order echoes. Possible echoes are optionally assigned an echo probability level (220, 224, 228) based on the degree to which their measured locations and/or amplitudes match the calculated echo locations and amplitudes. Possible echoes are appropriately marked (210) so that an OTDR display (136) indicates to a user which events are possible echoes. Optionally, events may be marked as having a low, medium, or high probability of being echoes.
|
