Recurrent Adaptive Noise Canceller for Brillouin Signal Enhancement

Technology Description         

A method of recurrent adaptive noise cancellation (RANC) that reduces noise from recurrent signals particularly those collected from Brillouin optical time-domain analysis (BOTDA) sensors. Using two consecutive noisy measurements containing different white noise, the underlying deterministic signal can be determined through adaptive filtering.


  • Does not depend on reference noise.
  • Can be applied to other fields of research having noisy recurrent signals.
  • Ten times faster than traditional ensemble averaging.

Stage of Development

A prototype has been developed and tested successfully in the lab.

Intellectual Property

US Patent: US 9,131,915 – Method and Apparatus for Noise Cancellation

This technology is available for licensing.

Contact Us

Office of Research Services, Industry-Government Services
University of New Brunswick
Phone: (506) 453-4674