| 摘要 |
An optical fibre sensor system for determining a location of a disturbance has a signal processor with a plurality of activation cells adapted to react to components of a back-scattered signal and label the disturbance. Radiation is launched 205 into the optical fibre, and backscattered radiation indicative of a disturbance to fibre is detected 210. The disturbance may be vibration caused by vehicles, footsteps, digging or drilling, or changes in temperature or strain in the fibre. The processor includes a plurality of first activation cells 240 which receive components of the backscattered signal. A plurality of second activation cells 250 are connected to the first activation cells. Outputs from a subset of the second cells are summed 270 to produce a result indicative of a disturbance. |
