CN115485580A - 监视lidar输出信号中的信号啁啾 - Google Patents

监视lidar输出信号中的信号啁啾 Download PDF

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Publication number
CN115485580A
CN115485580A CN202180035663.5A CN202180035663A CN115485580A CN 115485580 A CN115485580 A CN 115485580A CN 202180035663 A CN202180035663 A CN 202180035663A CN 115485580 A CN115485580 A CN 115485580A
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CN
China
Prior art keywords
signal
lidar
waveguide
process variable
frequency
Prior art date
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Pending
Application number
CN202180035663.5A
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English (en)
Chinese (zh)
Inventor
B·贝鲁兹普尔
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Silicon Optical Chip Technology Co
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Silicon Optical Chip Technology Co
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Filing date
Publication date
Application filed by Silicon Optical Chip Technology Co filed Critical Silicon Optical Chip Technology Co
Publication of CN115485580A publication Critical patent/CN115485580A/zh
Pending legal-status Critical Current

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    • 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

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  • 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)
CN202180035663.5A 2020-05-16 2021-05-12 监视lidar输出信号中的信号啁啾 Pending CN115485580A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US16/875987 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 (1)

Publication Number Publication Date
CN115485580A true CN115485580A (zh) 2022-12-16

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Family Applications (1)

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CN202180035663.5A Pending CN115485580A (zh) 2020-05-16 2021-05-12 监视lidar输出信号中的信号啁啾

Country Status (5)

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

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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
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US20240176022A1 (en) * 2022-11-30 2024-05-30 Silc Technologies, Inc. Control of signal chirp in lidar systems
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WO2025034636A2 (en) * 2023-08-07 2025-02-13 Northwestern University Multiplication and amplification of an optical signal
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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
CN106031058A (zh) * 2014-02-19 2016-10-12 华为技术有限公司 任意波形生成的马赫-曾德尔调制器偏置控制
US20180073932A1 (en) * 2015-03-26 2018-03-15 Thales Method for measuring the frequency modulation of a laser source
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WO2021236399A1 (en) 2021-11-25
EP4150376A4 (en) 2024-06-12
JP2023529564A (ja) 2023-07-11
US20210356592A1 (en) 2021-11-18
US12066535B2 (en) 2024-08-20
EP4150376A1 (en) 2023-03-22
JP7746291B2 (ja) 2025-09-30

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