Long-range fiber-optic earthquake sensing by active phase noise cancellation - Noe S, Husmann D, M üller N, Morel J, Fichtner A.

We present a long-range fiber-optic environmental deformation sensor based on active phase noise cancellation (PNC) in metrological frequency dissemination. PNC sensing exploits recordings of a compensation frequency that is commonly discarded. Without the...
Source: SafetyLit - Category: International Medicine & Public Health Tags: Disaster Preparedness Source Type: news