US 11,686,827 B2 · Adaptive coding for Lidar systems

Abstract

A Lidar system is provided. The Lidar system comprise: a light source configured to emit a multi-pulse sequence to measure a distance between the Lidar system and a location in a three-dimensional environment, and the multi-pulse sequence comprises multiple pulses having a temporal profile; a photosensitive detector configured to detect light pulses from the three-dimensional environment; and one or more processors configured to: determine a coding scheme comprising the temporal profile, wherein the coding scheme is determined dynamically based on one or more real-time conditions including an environment condition, a condition of the Lidar system or a signal environment condition; and calculate the distance based on a time of flight of a sequence of detected light pulses, wherein the time of flight is determined by determining a match between the sequence of detected light pulses and the temporal profile.

Claims20

Dependent claims

A system for determining a coding scheme for a laser range and detection system, the system comprising:

(i) a memory for storing a set of program instructions, and (ii) one or more processors configured to execute the set of program instructions to:
(a) detect one or more real-time conditions during operation of the laser range and detection system, wherein the one or more real-time conditions comprise at least one condition selected from the group consisting of a power consumption of the laser range and detection system, a temperature of the laser range and detection system, a signal channel condition, a weather and geolocation of the laser range and detection system and a sparsity of objects in a three-dimensional environment detectable by the laser range and detection system;
and
(b) determine, based at least in part on the one or more real-time conditions, a coding scheme from a plurality of coding schemes for generating a control signal to a light source of the laser range and detection system, wherein the control signal causes the light source to emit a sequence of light pulses to the three-dimensional environment according to the coding scheme.

1 more element

Dependencies are inferred from the claim text.

Adaptive coding for Lidar systems

Life of this patent

Adaptive coding for Lidar systems

Life of this patent

Abstract

Claims20