NDLI: Design of high precision electronics for laser range finder

Content Provider	IEEE Xplore Digital Library
Author	Jayarajan, J. Kumaran, R. Paul, S. Parmar, R.M. Koringa, P.
Copyright Year	2013
Description	Author affiliation: Electron. & Commun. Syst., Dharmsinh Desai Univ., Nadiad, India (Koringa, P.) \|\| Sensor Front End Electron. Div., Space Applic. Centre (ISRO), Ahmedabad, India (Jayarajan, J.; Kumaran, R.; Paul, S.; Parmar, R.M.)
Abstract	Resolution of Time to Digital Convertor (TDC) is a critical parameter in determining the overall performance of Time Of Flight based laser range finder system. This paper focuses on designing a high resolution Laser Range Finder (LRF) using Commercial-Off-The-Shelf (COTS) components. The designed LRF consists of a high resolution Time to Digital Convertor using Virtex-4 FPGA, Parallel to USB converter, High Voltage Power Supply and Data acquisition and display module. TDC generates START pulse at pulse repetition frequency (prf). This pulse is fed as trigger to laser TX. Avalanche Photo-Diode (APD) receiver with high voltage bias (~140V) generates a STOP pulse on receipt of reflected laser beam. This pulse is level translated and fed to TDC as STOP pulse. Digital Clock Manager (DCM) is used to achieve clock interpolation for improving resolution beyond 1 clock period. The output of TDC is parallel 16-bit digital count which is converted to serial USB protocol and interfaced to PC based data acquisition system. The raw data is processed and distance information is derived after calibration with known distance sets. Graphical User Interface (GUI) is developed for display, record and calibration. Full system resolution of about 22 cm is achieved in hardware for a range of 10m. The system has a power consumption of 6.15W.
Sponsorship	IEEE Kerala Sect.
Starting Page	1
Ending Page	6
File Size	3194546
Page Count	6
File Format	PDF
e-ISBN	9781479921782
DOI	10.1109/RAICS.2013.6745437
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-12-19
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	LRF Time of Flight(TOF) Radiation detectors FPGA USB Receivers Time to Digital Convertor (TDC) Lasers Laser altimeter Digital Clock Manager(DCM) Measurement by laser beam Hardware Field programmable gate arrays Clocks
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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