MULTI-SPECTRAL LIDAR
A light detection and ranging system can have a spectral module connected to a light emitter and a detector as part of an optical sensor. The spectral module can be configured to adjust from a first wavelength of light to a second wavelength of light to classify a downrange target. The spectral module can customize a ratio of wavelengths over time to filter false positives in a field of view.
1 . An apparatus comprising a controller connected to a light emitter and a detector as part of a light detection and ranging system, the controller configured to identify and eliminate one or more incorrect readings in a field of view of the emitter.
2 . The apparatus of claim 1 , wherein the incorrect reading is a false positive.
3 . The apparatus of claim 1 , wherein the incorrect reading is an erroneous photon.
4 . The apparatus of claim 1 , wherein the incorrect reading is from a target positioned downrange from the emitter and detector.
5 . A method comprising:
connecting a controller to a light emitter and a detector as part of a light detection and ranging system;
sending a light beam from the emitter downrange towards at least one target;
identifying an incorrect reading in a field of view of the emitter; and
adjusting at least one operating parameter of the detector to compensate for the incorrect reading.
6 . The method of claim 5 , wherein the controller identifies the incorrect reading in multiple sequential frames.
7 . The method of claim 5 , wherein the controller identifies the incorrect reading by comparing a frame of photon readings with a threshold.
8 . The method of claim 7 , wherein the threshold is dynamic over time.
9 . The method of claim 8 , wherein the threshold is dynamic in response to detection of downrange targets.
10 . The method of claim 8 , wherein the threshold is dynamic in response to a sensed oxygen saturation proximal the detector.
11 . The method of claim 5 , wherein the incorrect reading is identified by an artificial intelligence circuit of the controller.
12 . The method of claim 5 , wherein the incorrect reading is identified after application of an algorithm.
13 . The method of claim 12 , wherein the algorithm is generated by the controller in response to logged activity during the detection of downrange targets.
14 . The method of claim 5 , wherein the controller adjusts from a first wavelength of light to a second wavelength of light to compensate for the incorrect reading.
15 . The method of claim 5 , wherein the controller classifies a downrange target after compensating for the incorrect reading.
16 . The method of claim 5 , wherein the controller adjusts a wavelength ratio over time to compensate for the incorrect reading.
17 . A method comprising:
connecting a controller to a light emitter and a detector as part of a light detection and ranging system;
sending a light beam from the emitter downrange towards at least one target;
identifying an incorrect reading in a field of view of the emitter; and
adjusting at least one operating parameter of the detector to prevent the incorrect reading from occurring again.
18 . The method of claim 17 , wherein the at least one operating parameter is pulse width.
19 . The method of claim 17 , wherein the at least one operating parameter is wavelength.
20 . The method of claim 17 , wherein the at least one operating parameter is light beam direction.