公开(公告)号：US20220214429A1

公开(公告)日：2022-07-07

申请号：US17702940

申请日：2022-03-24

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Junpeng YANG ,  Xia LIU ,  Dongshan LIU ,  Changsheng GONG ,  Jiaxin WANG

IPC: G01S7/48 ,  G01S17/08

Abstract: A LiDAR echo signal processing method is disclosed. The method includes: receiving an echo signal reflected by a to-be-detected object, where the echo signal includes multidimensional signal emission angles; buffering the echo signal based on the multidimensional signal emission angles to obtain buffered signals; when the number of buffered signals reaches a preset buffering number, extracting a target signal corresponding to a preset neighborhood window from the buffered signals; and performing non-coherent integration on the target signal and outputting the integrated target signal.

公开(公告)号：US20210333360A1

公开(公告)日：2021-10-28

申请号：US17356443

申请日：2021-06-23

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Site LUO ,  Xia LIU ,  Dongshan LIU ,  Junpeng YANG

IPC: G01S7/48 ,  G01S7/487 ,  G01S7/499

Abstract: This application relates to a multi-pulse anti-interference signal processing apparatus. The multi-pulse anti-interference signal processing apparatus includes a detection pulse sending unit and a pulse receiving unit. The detection pulse sending unit is configured to emit a plurality of laser pulses to a target object based on a preset emission interval within a cycle. The pulse receiving unit is configured to receive a plurality of external signals within the cycle, obtain a reception interval between any two external signals, and determine, in the plurality of external signals based on the emission interval and the reception interval, an echo signal corresponding to the emitted laser pulses. A false echo pulse resulting from optical-to-electrical conversion and an interfering echo pulse fed back by other radar are effectively eliminated. Therefore, a signal-to-noise ratio of a target echo pulse is increased, mutual interference between a plurality of radars is effectively eliminated, and accuracy of ranging performed by a radar by using a laser pulse is improved.

公开(公告)号：US20210072361A1

公开(公告)日：2021-03-11

申请号：US17023307

申请日：2020-09-16

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Xia LIU ,  Han HU ,  Zhiyi LOU

IPC: G01S7/487 ,  G01S17/10

Abstract: The present disclosure provides, for example, a lidar ranging method. The method may include calling a sequencer to generate a preset sequence with the sequencer. The method may also include determining a pulse transmission interval of double pulses according to the preset sequence and a preset value. The method may further include transmitting a probing signal to an object to be ranged according to the pulse transmission interval of the double pulses. The method may additionally include receiving, from the object to be ranged, an echo signal returned according to the probing signal. The method may also include extracting a valid echo signal from the echo signal. The method may further include calculating a distance from the object to be ranged according to a time difference between the valid echo signal and the probing signal.