3rd International VLBI Technology Workshop 10 - 13 November 2014. Groningen/Dwingeloo, The Netherlands DSCC VLBI PROCESSOR (DVP) J.E. Clark 1, C. García-Miró.

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Presentation transcript:

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands DSCC VLBI PROCESSOR (DVP) J.E. Clark 1, C. García-Miró 2, S. Horiuchi 3 (1)Jet Propulsion Laboratory, California Institute of Technology, USA (2)Madrid Deep Space Communications Complex, NASA, ISDEFE, Spain. (3) Canberra DSN/NASA, C.S.I.R.O., Australia Copyright 2014 California Institute of Technology. U.S. Government sponsorship acknowledged. JPL

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands Introduction What is a DVP? Current Implementation Future Implementation Fringes to antennas outside of DSN DVP Specification Documentation Questions?

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands The DVP One Mark5C ROACH Two-Input IF Digitizer 12x2 IF Switch VEX in, VDIF out…

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands Operational Since December 2013 Fixed 16 Complex Channels (I&Q) or… Fixed 32 USB/LSB Channels 2, 4, or 8-bit Sampling Up to 2Gb/sec Data Rate (No Dual-Bank) VDIF Only (w/16-byte headers, I know…) No WX, GPS-FMOUT, IFDTP, ANTAB, etc… Operational VEX builder for JPL, dev version for others… DVP CURRENT IMPLEMENTATION

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands Variable # Complex Channels (I&Q) or… Variable # USB/LSB Channels 1, 2, 4, or 8-bit Sampling Up to 4Gb/sec Data Rate (Dual-Bank) VDIF Only (w/32-byte Headers) WX, GPS-FMOUT, IFDTP, ANTAB, (PCFS-type Log File) Single flexible VEX script builder for all users. DVP FUTURE IMPLEMENTATION (Probably not until FY ’16)

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands External DVP users: FRINGES First Fringes! DSS-63 at the EVN software correlator at JIVE (SFXC) Effelsberg To Robledo DVP 8 channels, 16MHz wide, 2-bit

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands DSS-43 22GHz Fringe test to HartRAO and Hobart, at BONN (DiFX) Correlator More Fringes…

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands DSS-43 to Japanese VERA Antennas at Mitaka NAOJ… IVS: DSS-65 for SGP EUR129 correlated at JIVE More Fringes…

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands JPL has published an official DVP External Interface Agreement. It describes the full specification and functionality of the DVP. I will make it available to any station. Describes Input and output file formats, channel encoding, and data products from any DVP station in the Deep Space Network. For anyone interested:

3rd International VLBI Technology Workshop November Groningen/Dwingeloo, The Netherlands Questions?