JP7746291B2 - Ｌｉｄａｒ出力信号における信号チャープの監視 - Google Patents

Ｌｉｄａｒ出力信号における信号チャープの監視

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Publication number
JP7746291B2
JP7746291B2 JP2022568583A JP2022568583A JP7746291B2 JP 7746291 B2 JP7746291 B2 JP 7746291B2 JP 2022568583 A JP2022568583 A JP 2022568583A JP 2022568583 A JP2022568583 A JP 2022568583A JP 7746291 B2 JP7746291 B2 JP 7746291B2
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Japan
Prior art keywords
signal
lidar
process variable
waveguide
frequency
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JP2022568583A
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English (en)
Japanese (ja)
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JP2023529564A (ja
JP2023529564A5 (enExample
Inventor
ベローズプール、ベーナム
Original Assignee
シルク テクノロジーズ インコーポレイティッド
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Publication of JP2023529564A5 publication Critical patent/JP2023529564A5/ja
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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/34—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4911—Transmitters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4913—Circuits for detection, sampling, integration or read-out
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4917—Receivers superposing optical signals in a photodetector, e.g. optical heterodyne detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4918—Controlling received signal intensity, gain or exposure of sensor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/499—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00 using polarisation effects

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Optical Integrated Circuits (AREA)
JP2022568583A 2020-05-16 2021-05-12 Ｌｉｄａｒ出力信号における信号チャープの監視 Active JP7746291B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/875,987 2020-05-16
US16/875,987 US12066535B2 (en) 2020-05-16 2020-05-16 Monitoring signal chirp in LIDAR output signals
PCT/US2021/032095 WO2021236399A1 (en) 2020-05-16 2021-05-12 Monitoring signal chirp in lidar output signals

Publications (3)

Publication Number Publication Date
JP2023529564A JP2023529564A (ja) 2023-07-11
JP2023529564A5 JP2023529564A5 (enExample) 2024-05-14
JP7746291B2 true JP7746291B2 (ja) 2025-09-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP2022568583A Active JP7746291B2 (ja) 2020-05-16 2021-05-12 Ｌｉｄａｒ出力信号における信号チャープの監視

Country Status (5)

Country Link
US (1) US12066535B2 (enExample)
EP (1) EP4150376A4 (enExample)
JP (1) JP7746291B2 (enExample)
CN (1) CN115485580A (enExample)
WO (1) WO2021236399A1 (enExample)

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US11536805B2 (en) 2018-06-25 2022-12-27 Silc Technologies, Inc. Optical switching for tuning direction of LIDAR output signals
US12535586B2 (en) 2018-08-31 2026-01-27 SiLC Technology, Inc. Reduction of ADC sampling rates in LIDAR systems
US12429569B2 (en) * 2019-05-17 2025-09-30 Silc Technologies, Inc. Identification of materials illuminated by LIDAR systems
US11698448B1 (en) * 2020-06-25 2023-07-11 Silc Technologies, Inc. Reduction of electrical components in LIDAR systems for identifying a beat frequency by using peaks of outputs of two transforms
US11650317B2 (en) 2019-06-28 2023-05-16 Silc Technologies, Inc. Use of frequency offsets in generation of LIDAR data
US11982743B2 (en) 2021-04-29 2024-05-14 Silc Technologies, Inc. Reducing size of LIDAR system control assemblies
US12541009B2 (en) 2021-06-17 2026-02-03 Silc Technologies, Inc. Scanning multiple LIDAR system output signals
US12411213B2 (en) 2021-10-11 2025-09-09 Silc Technologies, Inc. Separation of light signals in a LIDAR system
US12553995B2 (en) 2022-02-14 2026-02-17 Silc Technologies, Inc. Data refinement in optical systems
US12578443B2 (en) 2022-04-23 2026-03-17 Silc Technologies, Inc. Data refinement in optical imaging systems
US12422618B2 (en) 2022-10-13 2025-09-23 Silc Technologies, Inc. Buried taper with reflecting surface
US20240176022A1 (en) * 2022-11-30 2024-05-30 Silc Technologies, Inc. Control of signal chirp in lidar systems
US12578439B2 (en) 2023-04-11 2026-03-17 Silc Technologies, Inc. Increasing resolution in imaging systems
WO2025034636A2 (en) * 2023-08-07 2025-02-13 Northwestern University Multiplication and amplification of an optical signal
EP4579276A1 (en) * 2023-12-28 2025-07-02 Scantinel Photonics GmbH System and method for measuring a range to an object

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JP2018511054A (ja) 2015-03-26 2018-04-19 タレス レーザー光源の周波数変調を測定する方法
WO2019149815A1 (en) 2018-02-02 2019-08-08 Uab Brolis Semiconductors Wavelength determination for widely tunable lasers and laser systems thereof

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JP2013165407A (ja) 2012-02-10 2013-08-22 Fujitsu Ltd 光パス確立方法及び光ノード装置
US20140269790A1 (en) 2013-03-15 2014-09-18 Digital Signal Corporation System and method for increasing coherence length in lidar systems
JP2018511054A (ja) 2015-03-26 2018-04-19 タレス レーザー光源の周波数変調を測定する方法
WO2017187510A1 (ja) 2016-04-26 2017-11-02 株式会社日立製作所 距離計測装置、距離計測方法、及び形状計測装置
WO2019149815A1 (en) 2018-02-02 2019-08-08 Uab Brolis Semiconductors Wavelength determination for widely tunable lasers and laser systems thereof

Also Published As

Publication number Publication date
WO2021236399A1 (en) 2021-11-25
EP4150376A4 (en) 2024-06-12
JP2023529564A (ja) 2023-07-11
US20210356592A1 (en) 2021-11-18
CN115485580A (zh) 2022-12-16
US12066535B2 (en) 2024-08-20
EP4150376A1 (en) 2023-03-22

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