Fast response, medium resolution digital Event Timer and Range Gate Generator for Satellite Laser Ranging

• Autorzy: Iqbal F. , Kirchner G. , Koidl F.

Identyfikatory

DOI

10.2478/v10018-009-0013-8

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

Event Timer; FPGA; SLR; Range Gate Generator

• Wydawca: Centrum Badań Kosmicznych PAN ; De Gruyter
• Czasopismo: Artificial Satellites : Journal of Planetary Geodesy
• Rocznik: 2008
• Tom: Vol. 43, No. 4
• Strony: 143--149
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Iqbal F.

• Higher Education Commission of Pakistan Presently at TU Graz, PhD Study

autor

Kirchner G.

• Austrian Academy of Sciences, Space Research Institute, Graz

autor

Koidl F.

• Austrian Academy of Sciences, Space Research Institute, Graz

Bibliografia

• Altera FPGA: several application notes available at Altera website: www.altera.com e.g. (1) analyzing and optimizing the Design Floor plan. (2) Best Practices for Incremental Compilation Partitions and Floor plan Assignments. Etc.
• Iqbal F. (2008): Medium Resolution Event Timer and Range Gate Generator in Graz FPGA Card, 16th international Laser Ranging Conference; Poznan, Poland, Oct. 2008.
• Kirchner G., Koidl F. (2000): Graz Event Timing System; Proceedings of 14th Int. Workshop on Laser Ranging, Matera, Italy.
• Kirchner G., Koidl F. (2004): Graz kHz SLR system: Design, Experiences and Results Proceedings of 14th Int. Workshop on Laser Ranging, San Fernando/Spain.
• Pearlman, M.R., Degnan, J.J., and Bosworth, J.M.(2002):The International Laser Ranging Service; Advances in Space Research, Vol. 30, No. 2, pp. 135-143, DOI:10.1016/S0273-1177(02)00277-6.
• Sadovnikov M.A. (2008): Pulse Repetition rate optimization in SLR stations to provide minimum systematic error of reading, 16th international Laser Ranging Conference Poznan, Poland.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).