Programmable filters to improve the fidelity of data in systems based on frequency scanning interferometry

摘要

Programmable filters to improve the fidelity of data in systems based on interferometry scanning frequency, the present invention relates to a method, system and apparatus for obtaining a parameter of interest from several sensors in a fiber optic cable used in a The hole of the well.Light having frequency variable within a range of frequencies is propagated along the fiber optic cable. Signals are received, which are in response to interaction of the light propagated with multiple sensors. The received signals are filtered by using a programmable filter. The parameter of interest is obtained from the filtered signals.In one aspect, the fiber optic cable is coupled with a state employee in the hole of the well and the parameter of interest is related to the state.