Patent ID: 11879980
Assignee: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A system comprising:
a light source configured to emit a beam of light, wherein the light source comprises a tunable output wavelength and a stable phase;
a sensor configured to transmit the beam of light and detect a reflected beam of light, wherein the sensor comprises a photodetector and an optical grating array configured to diffract the beam of light based on a wavelength of the beam of light;
a modulator configured to modulate the wavelength of the light source, wherein sets of different wavelength ranges are configured to be directed to the optical grating array and each set of different wavelength ranges corresponds to a steering angle; and
a computing component configured to receive the detected reflected beam of light and retrieve a stored representation of a separate beam of light, wherein the computing component processes the detected reflected beam of light by a Fast Fourier algorithm to identify an anomaly by convolving a computed representation of the detected reflected beam of light with the stored representation of the separate beam of light, the identification being made based on the processed signals depicting received power representations unique to the anomaly identified, the identification corresponding to a comparison between a first slope of the stored representation and a second slope of the computed representation.