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1. CN111542765 - LIDAR WITH LARGE DYNAMIC RANGE

官庁
中華人民共和国
出願番号 201880081927.9
出願日 18.10.2018
公開番号 111542765
公開日 14.08.2020
公報種別 A
IPC
G01S 17/02
G物理学
01測定;試験
S無線による方位測定;無線による航行;電波の使用による距離または速度の決定;電波の反射または再輻射を用いる位置測定または存在探知;その他の波を用いる類似の装置
17電波以外の電磁波の反射または再放射を使用する方式,例.ライダー方式
02電波以外の電磁波の反射を使用する方式
G01C 3/02
G物理学
01測定;試験
C距離,水準または方位の測定;測量;航行;ジャイロ計器;写真計量または映像計量
3視準線上の距離測定;光学的距離計
02細部
G01S 17/06
G物理学
01測定;試験
S無線による方位測定;無線による航行;電波の使用による距離または速度の決定;電波の反射または再輻射を用いる位置測定または存在探知;その他の波を用いる類似の装置
17電波以外の電磁波の反射または再放射を使用する方式,例.ライダー方式
02電波以外の電磁波の反射を使用する方式
06対象物の位置データを決定する方式
CPC
G01S 7/484
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
484Transmitters
G01S 7/4818
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
481Constructional features, e.g. arrangements of optical elements
4818using optical fibres
G01S 17/10
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
17Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
02Systems using the reflection of electromagnetic waves other than radio waves
06Systems determining position data of a target
08for measuring distance only
10using transmission of interrupted, pulse-modulated waves
G01S 7/4808
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
4808Evaluating distance, position or velocity data
G01S 7/4865
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
483Details of pulse systems
486Receivers
4865Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
G01S 7/499
GPHYSICS
01MEASURING; TESTING
SRADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
7Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
48of systems according to group G01S17/00
499using polarisation effects
出願人 INNOVUSION IRELAND LTD
图达通爱尔兰有限公司
発明者 ZHANG RUI
张锐
LI YIMIN
李义民
BAO JUNWEI
鲍君威
代理人 中国专利代理(香港)有限公司 72001
中国专利代理(香港)有限公司 72001
優先権情報 62/574679 19.10.2017 US
発明の名称
(EN) LIDAR WITH LARGE DYNAMIC RANGE
(ZH) 具有大动态范围的LIDAR
要約
(EN) A method for expanding a dynamic range of a light detection and ranging (LiDAR) system is provided. The method comprises transmitting, using a light source of the LiDAR system, a sequence of pulse signals consisting of two or more increasingly stronger pulse signals. The method further comprises receiving, using a light detector of the LiDAR system, one or more returned pulse signals correspondingto the transmitted sequence of pulse signals. The one or more returned pulse signals are above the noise level of the light detector. The method further comprises selecting a returned pulse signal within the dynamic range of the light detector, identifying a transmitted pulse signal of the transmitted sequence that corresponds to the selected returned pulse signal, and calculating a distance based on the selected returned signal and the identified transmitted signal.
(ZH) 提供了一种用于扩展光检测和测距(LiDAR)系统的动态范围的方法。所述方法包括通过使用LiDAR系统的光源来发射脉冲信号的序列,所述脉冲信号的序列包括两个或更多愈发更强的脉冲信号。所述方法此外包括通过使用LiDAR系统的光检测器来接收与所发射的脉冲信号的序列相对应的一个或多个所返回的脉冲信号。所述一个或多个所返回的脉冲信号在光检测器的噪声水平以上。所述方法此外包括选择在光检测器的动态范围内的所返回的脉冲信号,标识与所选择的所返回的脉冲信号相对应的所发射的序列中的所发射的脉冲信号,以及基于所选择的所返回信号以及所标识的所发射信号来计算距离。