Distributed optical fiber sensing (dfos) system and method of using the same

A distributed optical fiber sensing (DFOS) method comprising:

• receiving DFOS data from a sensor connected to an optical fiber, wherein the optical fiber is adjacent a roadway having a bridge;
• filtering the DFOS data based on a frequency range;
• generating a plurality of spread features, wherein each spread feature of the plurality of spread features corresponds to a channel of a plurality of channels of the filtered DFOS data;
• performing binarization of the plurality of spread features;
• and
• identifying a location of the bridge along the roadway based on results of the binarization of the plurality of spread features.

A non-transitory computer readable medium configured to store instructions thereon, wherein the instructions are configured to cause a processor to:

• receive DFOS data from a sensor connected to an optical fiber, wherein the optical fiber is adjacent a roadway having a bridge;
• filter the DFOS data based on a frequency range;
• generate a plurality of spread features, wherein each spread feature of the plurality of spread features corresponds to a channel of a plurality of channels of the filtered DFOS data;
• perform binarization of the plurality of spread features;
• and
• identify a location of the bridge along the roadway based on results of the binarization of the plurality of spread features.