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1. WO2020139332 - REAL-TIME ESTIMATION OF DC BIAC AND NOISE POWER OF LIGHT DETECTION AND RANGING (LIDAR)

Publication Number WO/2020/139332
Publication Date 02.07.2020
International Application No. PCT/US2018/067574
International Filing Date 26.12.2018
IPC
G01S 7/487 2006.01
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/, G01S15/, G01S17/127
48of systems according to group G01S17/58
483Details of pulse systems
486Receivers
487Extracting wanted echo signals
G01S 17/88 2006.01
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
88Lidar systems, specially adapted for specific applications
CPC
G01S 17/02
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
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 17/89
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
88Lidar systems specially adapted for specific applications
89for mapping or imaging
G01S 17/931
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
88Lidar systems specially adapted for specific applications
93for anti-collision purposes
931of land vehicles
G01S 7/4873
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
487Extracting wanted echo signals ; , e.g. pulse detection
4873by deriving and controlling a threshold value
G01S 7/497
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
497Means for monitoring or calibrating
Applicants
  • BEIJING VOYAGER TECHNOLOGY CO., LTD.
Inventors
  • ZHU, Zhenghan
  • LU, Yue
  • KONG, Lingkai
  • WU, John
Agents
  • SONG, Jiayu
Priority Data
16/231,91124.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REAL-TIME ESTIMATION OF DC BIAC AND NOISE POWER OF LIGHT DETECTION AND RANGING (LIDAR)
(FR) ESTIMATION EN TEMPS RÉEL DE SOLLICITATION DE COURANT CONTINU ET DE PUISSANCE DE BRUIT DE DÉTECTION ET DE TÉLÉMÉTRIE PAR LA LUMIÈRE (LIDAR)
Abstract
(EN)
Embodiments of the disclosure provide a system for analyzing noise data for light detection and ranging (LiDAR). The system includes a communication interface configured to sequentially receive noise data of the LiDAR in time windows, at least one storage device configured to store instructions, and at least one processor configured to execute the instructions to perform operations. Exemplary operations include determining an estimated noise value of a first time window using the noise data received in the first time window and determining an instant noise value of a second time window using the noise data received in the second time window. The second time window is immediately subsequent to the first time window. The operations also include determining an estimated noise value of the second time window by aggregating the estimated noise value of the first time window and the instant noise value of the second time window.
(FR)
Des modes de réalisation de l'invention concernent un système destiné à analyser des données de bruit pour une détection et une télémétrie par la lumière (LiDAR). Le système comprend une interface de communication configurée pour recevoir séquentiellement des données de bruit du LiDAR dans des fenêtres temporelles, au moins un dispositif de stockage configuré pour stocker des instructions et au moins un processeur configuré pour exécuter les instructions afin d'effectuer des opérations. Des exemples d'opérations consistent à déterminer une valeur de bruit estimée d'une première fenêtre temporelle à l'aide des données de bruit reçues dans la première fenêtre temporelle et à déterminer une valeur de bruit instantanée d'une seconde fenêtre temporelle à l'aide des données de bruit reçues dans la seconde fenêtre temporelle. La seconde fenêtre temporelle est immédiatement subséquente à la première fenêtre temporelle. Les opérations comprennent également la détermination d'une valeur de bruit estimée de la seconde fenêtre temporelle par agrégation de la valeur de bruit estimée de la première fenêtre temporelle et de la valeur de bruit instantanée de la seconde fenêtre temporelle.
Also published as
Latest bibliographic data on file with the International Bureau