Velodyne Lidar, Inc.
SYSTEMS AND METHODS FOR IMPROVING DETECTION OF A RETURN SIGNAL IN A LIGHT RANGING AND DETECTION SYSTEM WITH PULSE ENCODING

Abstract:

Described herein are systems and methods for improving detection of a return signal in a light ranging and detection system (LiDAR). The method includes the following steps at the LiDAR system: encoding and transmitting a sequence of pulses based on a user signature. Then, receiving a multi-return signal based on a reflection off objects of the sequences of pulses. The multi-return signal may be decoded based on the user signature, and then authenticated the via a correlation calculation. The user signature may determine an amplitude of a first pulse in the sequence of pulses, an amplitude of a second pulse of the sequence of pulses, and an interval between the first pulse and the second pulse. A bit representation of the user signature is orthogonal to a bit representation of another user signature of another LiDAR system. The user signature may be dynamically adjusted by the LiDAR system.