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ES2140320A1 - Low-power monostatic coherent lidar system for measuring linear and rotational velocity of solid targets - Google Patents

Low-power monostatic coherent lidar system for measuring linear and rotational velocity of solid targets

Info

Publication number
ES2140320A1
ES2140320A1 ES009702070A ES9702070A ES2140320A1 ES 2140320 A1 ES2140320 A1 ES 2140320A1 ES 009702070 A ES009702070 A ES 009702070A ES 9702070 A ES9702070 A ES 9702070A ES 2140320 A1 ES2140320 A1 ES 2140320A1
Authority
ES
Spain
Prior art keywords
lidar system
low
power
coherent lidar
measuring
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
ES009702070A
Other languages
Spanish (es)
Other versions
ES2140320B1 (en
Inventor
Gomez Alejandro Rodriguez
Tejero Adolfo Comeron
Sole Albert Aguasca
Nalda Eloy Mesalles
Fuste Antoni Elias
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.)
Universitat Politecnica de Catalunya UPC
Original Assignee
Universitat Politecnica de Catalunya UPC
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 Universitat Politecnica de Catalunya UPC filed Critical Universitat Politecnica de Catalunya UPC
Priority to ES9702070A priority Critical patent/ES2140320B1/en
Publication of ES2140320A1 publication Critical patent/ES2140320A1/en
Application granted granted Critical
Publication of ES2140320B1 publication Critical patent/ES2140320B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Sistema lidar coherente monoestático de baja potencia para medida de velocidad lineal y de rotación de blancos sólidos.Se presenta un prototipo para un Sistema Lidar Coherente Monoestático (SLCM) (1) capaz de medir la velocidad de blancos sólidos hasta una distancia R de unos 17,5 m. El principio de funcionamiento es la detección del desplazamiento Doppler producido en la frecuencia de la radiación dispersada por la superficie rugosa del blanco (2), iluminado por el sistema. El margen de velocidades que es capaz de medir llega hasta unos 160 km/h. Emplea un transmisor láser de HeNe de baja potencia, un sistema óptico que permite el acondicionamiento y procesado de las señales transmitida, recibida y del oscilador local, un receptor con un fotodiodo y una electrónica de procesado, que permite realizar la detección de la frecuencia Doppler y, por tanto, de la velocidad del móvil.Low power monostatic coherent lidar system for measuring the linear and rotation speed of solid targets. A prototype is presented for a Monostatic Coherent Lidar System (SLCM) (1) capable of measuring the speed of solid targets up to a distance R of about 17 ,5m. The operating principle is the detection of the Doppler shift produced in the frequency of the radiation scattered by the rough surface of the target (2), illuminated by the system. The range of speeds that it is capable of measuring reaches up to about 160 km/h. It uses a low-power HeNe laser transmitter, an optical system that allows the conditioning and processing of the transmitted, received and local oscillator signals, a receiver with a photodiode and processing electronics, which allows detection of the Doppler frequency. and, therefore, the speed of the mobile.

ES9702070A 1997-09-25 1997-09-25 LOW POWER MONOSTATIC COHERENT LIDAR SYSTEM FOR MEASURING LINEAR SPEED AND SOLID WHITE ROTATION. Expired - Fee Related ES2140320B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES9702070A ES2140320B1 (en) 1997-09-25 1997-09-25 LOW POWER MONOSTATIC COHERENT LIDAR SYSTEM FOR MEASURING LINEAR SPEED AND SOLID WHITE ROTATION.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES9702070A ES2140320B1 (en) 1997-09-25 1997-09-25 LOW POWER MONOSTATIC COHERENT LIDAR SYSTEM FOR MEASURING LINEAR SPEED AND SOLID WHITE ROTATION.

Publications (2)

Publication Number Publication Date
ES2140320A1 true ES2140320A1 (en) 2000-02-16
ES2140320B1 ES2140320B1 (en) 2000-10-16

Family

ID=8300782

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9702070A Expired - Fee Related ES2140320B1 (en) 1997-09-25 1997-09-25 LOW POWER MONOSTATIC COHERENT LIDAR SYSTEM FOR MEASURING LINEAR SPEED AND SOLID WHITE ROTATION.

Country Status (1)

Country Link
ES (1) ES2140320B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611912A (en) * 1983-04-04 1986-09-16 Ball Corporation Method and apparatus for optically measuring distance and velocity
US4721385A (en) * 1985-02-11 1988-01-26 Raytheon Company FM-CW laser radar system
EP0355018A2 (en) * 1988-08-15 1990-02-21 Honeywell Inc. Semiconductor laser velocimeter
FR2689980A1 (en) * 1992-04-09 1993-10-15 Peugeot Moving object detector for vehicles - has modulated laser rays for reflection which are amplified and demodulated and the doppler offset extracted
ES2112792A1 (en) * 1996-04-24 1998-04-01 Univ Catalunya Politecnica Low power Monostatic Coherent Lidar System for measuring the velocity of solid targets.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4611912A (en) * 1983-04-04 1986-09-16 Ball Corporation Method and apparatus for optically measuring distance and velocity
US4721385A (en) * 1985-02-11 1988-01-26 Raytheon Company FM-CW laser radar system
EP0355018A2 (en) * 1988-08-15 1990-02-21 Honeywell Inc. Semiconductor laser velocimeter
FR2689980A1 (en) * 1992-04-09 1993-10-15 Peugeot Moving object detector for vehicles - has modulated laser rays for reflection which are amplified and demodulated and the doppler offset extracted
ES2112792A1 (en) * 1996-04-24 1998-04-01 Univ Catalunya Politecnica Low power Monostatic Coherent Lidar System for measuring the velocity of solid targets.

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A. RODRIGUEZ et al. "Low-cost, low power laser Doppler velocimetry with applications to traffic monitoring". European Symposium on Optics for Environmental and Public Safety, SPIE-Europto. Junio 1995. Munich (Alemania). Paper no 2511-22. Paginas 198-207 *
CHURNSIDE et al. "Transverse velocity measurements using coherent lidar". Proceedings of the SPIE-The International Society for Optical Engineering. 1981. Vol. 300, paginas 140-145. *

Also Published As

Publication number Publication date
ES2140320B1 (en) 2000-10-16

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