CA2971055A1 - Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local - Google Patents

Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local

Info

Publication number
CA2971055A1
CA2971055A1 CA2971055A CA2971055A CA2971055A1 CA 2971055 A1 CA2971055 A1 CA 2971055A1 CA 2971055 A CA2971055 A CA 2971055A CA 2971055 A CA2971055 A CA 2971055A CA 2971055 A1 CA2971055 A1 CA 2971055A1
Authority
CA
Canada
Prior art keywords
signal
transmission
phase
phase error
imaging system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2971055A
Other languages
English (en)
Other versions
CA2971055C (fr
Inventor
Simon Turbide
Alain Bergeron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institut National d'Optique
Original Assignee
Institut National d'Optique
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institut National d'Optique filed Critical Institut National d'Optique
Priority to CA2971055A priority Critical patent/CA2971055C/fr
Publication of CA2971055A1 publication Critical patent/CA2971055A1/fr
Application granted granted Critical
Publication of CA2971055C publication Critical patent/CA2971055C/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • 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
    • G01S17/10—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
    • G01S17/26—Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves wherein the transmitted pulses use a frequency-modulated or phase-modulated carrier wave, e.g. for pulse compression of received signals
    • 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
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G01S17/90—Lidar systems specially adapted for specific applications for mapping or imaging using synthetic aperture techniques
    • 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
    • G01S7/483—Details of pulse systems
    • G01S7/486—Receivers
    • 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
    • G01S7/497—Means for monitoring or calibrating
    • 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

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 Communication System (AREA)

Abstract

Une méthode de correction derreur de phase dans un système dimagerie à ouverture synthétique est décrite. Un signal de transmission et un signal doscillateur local (LO) sont produits selon une temporisation relative, qui peut être ajustée en temps réel pour faire correspondre une distance à une région cible à imager. Une partie du signal de transmission de données est transmis sur la région cible et un signal de retour est reçu et mélangé avec une partie du signal de LO pour fournir un signal douverture synthétique brut. Les erreurs de phases de transmission et de LO associées respectivement aux signaux de transmission et de LO sont relevées, de même quune instabilité de fréquence entre les signaux de transmission et de LO. Un signal douverture synthétique corrigé en phase est obtenu par lapplication dune correction de phase au signal brut en fonction de lerreur de phase de transmission, lerreur de phase de LO et linstabilité de fréquence. Un système dimagerie à ouverture synthétique capable de mettre en uvre la méthode est aussi décrit.
CA2971055A 2017-02-17 2017-02-17 Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local Active CA2971055C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2971055A CA2971055C (fr) 2017-02-17 2017-02-17 Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2971055A CA2971055C (fr) 2017-02-17 2017-02-17 Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local

Publications (2)

Publication Number Publication Date
CA2971055A1 true CA2971055A1 (fr) 2018-08-17
CA2971055C CA2971055C (fr) 2021-03-30

Family

ID=63165999

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2971055A Active CA2971055C (fr) 2017-02-17 2017-02-17 Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local

Country Status (1)

Country Link
CA (1) CA2971055C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210055412A1 (en) * 2019-08-20 2021-02-25 Institut National D'optique Method and system for detection and synthetic aperture imaging of a target
CN116559878A (zh) * 2023-06-05 2023-08-08 王辉 一种Ka波段VVD-SAR系统
CN117896017A (zh) * 2024-03-18 2024-04-16 西安晟昕科技股份有限公司 一种发射装置的信号检测分析方法

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210055412A1 (en) * 2019-08-20 2021-02-25 Institut National D'optique Method and system for detection and synthetic aperture imaging of a target
US11933882B2 (en) * 2019-08-20 2024-03-19 Institut National D'optique Method and system for detection and synthetic aperture imaging of a target
CN116559878A (zh) * 2023-06-05 2023-08-08 王辉 一种Ka波段VVD-SAR系统
CN117896017A (zh) * 2024-03-18 2024-04-16 西安晟昕科技股份有限公司 一种发射装置的信号检测分析方法
CN117896017B (zh) * 2024-03-18 2024-06-07 西安晟昕科技股份有限公司 一种发射装置的信号检测分析方法

Also Published As

Publication number Publication date
CA2971055C (fr) 2021-03-30

Similar Documents

Publication Publication Date Title
US10564268B2 (en) Phase-error correction in a synthetic aperture imaging system with local oscillator time delay adjustment
EP3593167B1 (fr) Système à base d'ondes continues à modulation de fréquence (fmcw) et procédé d'estimation de portée de fmcw
US9952313B2 (en) Phase calibration of a stepped-chirp signal for a synthetic aperture radar
US11656325B2 (en) Methods and apparatus to realize scalable antenna arrays with large aperture
US10670698B2 (en) Radar device with phase noise estimation
US10371800B2 (en) Radar device with noise cancellation
US10107895B2 (en) Amplitude calibration of a stepped-chirp signal for a synthetic aperture radar
US9523766B2 (en) Phase error correction in synthetic aperture imaging
US6559932B1 (en) Synthetic aperture ladar system using incoherent laser pulses
CN114035174B (zh) 双通道双啁啾线性调频连续波激光雷达方法及装置
AU2004264586B2 (en) An improved process for phase-derived range measurements
IL261489A (en) Optical Pasograms for Lidar Vibrometry
EP4384846B1 (fr) Système à base d'ondes continues à modulation de fréquence (fm-cw) pour l'estimation et la compensation de non-linéarité dans des sources à balayage linéaire
CN116893399A (zh) 用于对称双基地雷达的相位噪声减小
CN112987024A (zh) 一种基于合成孔径激光雷达的成像装置及方法
Buell et al. Demonstration of synthetic aperture imaging ladar
CA2971055C (fr) Correction d'erreurs de phase dans un systeme d'imagerie a ouverture synthetique avec reglage de retard de l'oscillateur local
CA2864501C (fr) Correction d'erreur de phase en imagerie a ouverture synthetique
CA3034765C (fr) Methode de traitement d'un signal issu d'un lidar coherent et systeme lidar associe
Kong et al. Performance Investigation of a Compact Microwave Photonic Radar
JP2006226711A (ja) レーダー装置
Bezvesilniy et al. Multi-view synthesized aperture radar
CA3034765A1 (fr) Methode de traitement d'un signal issu d'un lidar coherent et systeme lidar associe
CA3048330A1 (fr) Methode de traitement d'un signal issu d'un lidar coherent pour reduire le bruit et systeme lidar associe

Legal Events

Date Code Title Description
EEER Examination request

Effective date: 20191126

MPN Maintenance fee for patent paid

Free format text: FEE DESCRIPTION TEXT: MF (PATENT, 8TH ANNIV.) - STANDARD

Year of fee payment: 8

U00 Fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U00-U101 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE REQUEST RECEIVED

Effective date: 20250128

U11 Full renewal or maintenance fee paid

Free format text: ST27 STATUS EVENT CODE: A-4-4-U10-U11-U102 (AS PROVIDED BY THE NATIONAL OFFICE); EVENT TEXT: MAINTENANCE FEE PAYMENT DETERMINED COMPLIANT

Effective date: 20250128