Distributed optical sensing using compressive sampling
AssigneeHalliburton Energy Services, Inc.
InventorsDavid Andrew Barfoot, Satyan Gopal Bhongale, Christopher Lee Stokely, Andreas Ellmauthaler
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Abstract
Distributed optical sensing systems utilize compressive sensing techniques to determine parameters sensed by a waveguide. The system generates light that is sent along a sensing waveguide, thereby producing backscattered light. A compressive sampling filter forms part of the system, and is used to selectively block portions of the generated light or the backscattered light. The backscattered light is received by a receiver and used to determine one or more parameters.
Claims26
A distributed optical sensing system, comprising:
- a light source to generate light;
- a waveguide positioned to optically interact with the light to produce backscattered light;
- a compressive sampling filter positioned to selectively block portions of the light or the backscattered light based upon a compressive sampling technique;
- and
- an optical receiver to receive the backscattered light.
A distributed optical sensing method, comprising:
- generating light that optically interacts with a waveguide to produce backscattered light;
- selectively blocking portions of the light or the backscattered light using a compressive sampling filter;
- and
- analyzing the backscattered light to thereby determine a parameter being sensed by the waveguide.
A distributed optical sensing method, comprising:
- interrogating a sensing waveguide using an interrogation signal;
- receiving backscattered signals from selected regions of the sensing waveguide based upon a compressive sampling technique;
- and
- using the backscattered signals, determining a parameter being sensed by the sensing waveguide.
Dependencies are inferred from the claim text.