Huawei Technologies Co., Limited

Ali Ahmed Ali Massoud

Zhiping Jiang

Haitao Sun

Hongbiao Gao

Aspects of the disclosure provide a method of a LiDAR system to determine the distance of an object from the LiDAR system. Embodiments of the LiDAR system can use a coarse estimate of the distance of an object from the LiDAR system which is then used by a fast search to determine an estimate of the distance of an object from the LiDAR system within a precision threshold. In some embodiments the LiDAR system can use adaptive precision when determining the distance of an object from the LiDAR system.

Method and apparatus for a computationally efficent LiDAR system

There is provided a method and apparatus for detecting an object, especially an object remotely placed in a field of view (FOV) using optical pulses with non-uniform pulse power, without exceeding the Accessible Emitted Limit (AEL) A plurality of optical pulses including two or more levels of pulse power may be emitted to detect an object in the FOV. Information related to the object may be generated from the returning optical pulses. The optical pulses with non-uniform pulse power may result in increased probability of detection associated with the pulses returning from the remotely located object, and therefore the density of point clouds associated with the remotely located object may be increased.

Method and apparatus for detecting an object using optical pulses with non-uniform power

The disclosed systems, structures, and methods are directed to a LiDAR system comprising a radiation source configured to emit light pulses towards a region of interest (ROI), a detector configured to detect light pulses reflected from the ROI, a processor, communicatively coupled to the radiation source and the detector, configured to cause the radiation source to emit a preamble light pulse having an energy Eand a pulse width Wtowards the ROI, determine, if the preamble light pulse is detected by the detector and whether there is an object in the ROI, responsive to a determination that there is an object in the ROI, cause the radiation source to emit a scanning light pulse having an energy Eand a pulse width Wtowards the ROI, else the radiation source to emit a scanning light pulse having an energy Eand the pulse width Wtowards the ROI.

Preamble pulse based LiDAR systems and methods

The disclosed systems, structures, and methods are directed to an object detection system, employing a receiver configured to receive a signal reflected from an object, an analog-to-digital converter (ADC) configured to convert the received signal into a digital signal, a pre-processor configured to improve a signal-to-noise (SNR) of the digital signal and to generate a pre-processed signal corresponding to the digital signal, a parameter extractor configured to calculate a number of reference cells M and a multiplication factor K, and a Constant False Alarm Rate (CFAR) processor configured to analyze a cell-under-test (CUT) and M reference cells in accordance with the number of reference cells M and the multiplication factor Kto detect the presence of the object.

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Kanata, Canada

Ali Ahmed Ali Massoud