<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>For our kHz Satellite Laser Ranging (SLR) system in Graz, we developed a fast response, medium resolution Event Timer to determine laser firing times; and a digital Range Gate Generator to activate the Single Photon Avalanche Detector (C-SPAD). The Event Timer has a resolution of about 500 ps, and determines the Event Times within 20 ns; the Range Gate Generator produces a range gate pulse with about 500 ps resolution, and with an accuracy of better than 1 ns. Both devices are fully digital, and are implemented within an FPGA circuit. These devices can be used in the present 2 kHz SLR system, as well as in future higher repetition rate SLR systems.</p></abstract>

For our kHz Satellite Laser Ranging (SLR) system in Graz, we developed a fast response, medium resolution Event Timer to determine laser firing times; and a digital Range Gate Generator to activate the Single Photon Avalanche Detector (C-SPAD). The Event Timer has a resolution of about 500 ps, and determines the Event Times within 20 ns; the Range Gate Generator produces a range gate pulse with about 500 ps resolution, and with an accuracy of better than 1 ns. Both devices are fully digital, and are implemented within an FPGA circuit. These devices can be used in the present 2 kHz SLR system, as well as in future higher repetition rate SLR systems.

Fast Response, Medium Resolution Digital Event Timer and Range Gate Generator for Satellite Laser Ranging

PhD Fellowship — Higher Education Commission of Pakistan Presently at TU Graz

Austrian Academy of Sciences, Space Research Institute, Graz

Artificial Satellites

For our kHz Satellite Laser Ranging (SLR) system in Graz, we developed a fast response, medium resolution Event Timer to determine laser firing times; and a...

Fast Response, Medium Resolution Digital Event Timer and Range Gate Generator for Satellite Laser Ranging

Published Online: Aug 26, 2009

Page range: 143 - 149

DOI: https://doi.org/10.2478/v10018-009-0013-8

Keywords
Event Timer, FPGA, SLR, Range Gate Generator

This content is open access.

Fast Response, Medium Resolution Digital Event Timer and Range Gate Generator for Satellite Laser Ranging

Published Online: Aug 26, 2009

Page range: 143 - 149

DOI: https://doi.org/10.2478/v10018-009-0013-8

KeywordsEvent Timer, FPGA, SLR, Range Gate Generator

This content is open access.

Keywords
Event Timer, FPGA, SLR, Range Gate Generator