Hi Dan,
Thanks for those great options. Those sampling rates are the sort that I’m looking for. I can probably operate with a smaller RF band to start with, to make the task a little less difficult. Hi Francios, Thanks for helping out here. I don’t have academic licences but I could buy a commercial Mathworks licence. However, I tend to use Python now in place of Matlab, so does the CASPER technology work also with Python? If so would I need to buy a licence to use the CASPER hardware with Python, any idea of costs? (no way am I anywhere near a product it’s all pretty much a research activity, profit is nowhere in sight, stay afloat if lucky) Many thanks to you both for help. Best wishes, Neil From: Dan Werthimer <[email protected]> Sent: 19 March 2021 17:41 To: CASPER Mailing List <[email protected]> Subject: Re: [casper] quantum entanglement sensing using high-speed digital sampling and cross-multiplies hi neil, there's a quad 16 Gsps 4 bit ADC FMC board developed by CFA/Smithsonian that connects to a VCU128 FPGA board that might be useful for your work. the analog bandwidth of the ADC doesn't get up to 30 GHz, so you'd have to mix down your band before digitizing. you could break your 20 GHz band up into three pieces of 6.6 GHz each (using analog mixers and filters), and use three of the four ADC's on the board, or break it up into four pieces of 5 GHz each and use all four ADC's. another, less expensive solution is to break your 20 GHz band up into eight pieces of 2.4 GHz each, (and loosing a bit of the 20 GHz), then you could use a ZCU208 octal 5 Gsps 14 bit ADC/FPGA board. best wishes, dan On Fri, Mar 19, 2021 at 3:57 AM Francois Kapp <[email protected] <mailto:[email protected]> > wrote: Hi Neil, Second question first - you can access CASPER technology from anywhere. The software licensing may be different if you do not get academic discounts from Mathworks, and Xilinx may also charge you something depending on your exact situation. Both companies are generous to academic users. Regarding CASPER technology that you could use - there is work towards sampling those bands, but I don't think it is quite integrated into the flow yet. I know there are people on the list working on high sample rate converters that can get to your sample rate with the right number of bits. I am less certain of the analog performance out to 30GHz, but hopefully others can add to this. The processing should be covered by existing library elements. Regards, Francois On Fri, 19 Mar 2021 at 12:33, salmon.na <http://salmon.na> via [email protected] <mailto:[email protected]> <[email protected] <mailto:[email protected]> > wrote: Dear All, Would it be possible to access Casper technology for research into quantum entanglement sensing for the micro/mm-wave band? To explore some sensor concepts I’d be looking to make 4-bit sampling of radiation in the band 10 GHz to 30 GHz at something like 10 Gsps. I’d need to digitise on 4 channels (Hs, Vs, Hi, Vi) where H and V are the horizontal and linear polarisations of the radiation. Then I’d need to make four non-conjugated cross-multiplies and accumulates to create <HsHi>, <HsVi>, <Vs,Hi> and <VsVi>. Is there Casper (or other) technology that could be used for this? Is it possible to access Casper technology for research outside of universities? Many thanks, Neil -- You received this message because you are subscribed to the Google Groups "[email protected] <mailto:[email protected]> " group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected] <mailto:[email protected]> . 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