[hpsdr] Multiple Independent Receivers & Mercury

[Georg Prinz]

Hello Steve,

from my point of view dual or multi receiver boards are necessary for
various applications. This is the case when you are using several
antennas in different locations. This is applicable for e.g. space
diversity reception, localization of sources, beam forming, calculation
of wave polarization (e.g. eme) etc. The reason is that you need the
complex information (amplitude and phase) at each position. 
It is for shure, that not a complete receiver chain is necessary. The
information I and Q out of mercury will be sufficient (that does not
mean that the existing firmware can be used unchanged), but the
processing part in the PC have to be expanded and adapted to the
appropriate application.

Furthermore, all these receivers have to be synchronized to get the
information at different locations at the same real time. Otherwise the
signals are useless.

Georg
DL2KP

 


On Do, 2009-03-19 at 10:05 +0000, Steven Doyle wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> Hi all,
>  
> I have just watched Phil's excellent presentation on Mercury which was
> recorded at an ARRL TAPR event last year. I really recommend that
> everyone here should watch this DVD. 
>  
> As I understand it a single Mecury is quite capable supporting
> multiple independent receivers. I believe Phil said it could do 6, and
> only limited by our USB bandwith. The only reason that we currently
> have a single max 192KHz was so that we could use existing software
> like PowerSDR.
>  
> I was wondering if there are any plans to implement a second
> independent receiver and how difficult that may be. PowerSDR supports
> a second receiver for the Flex 5000 so that might be a basis to start
> with, though we may also need FPGA code changes as well.
>  
> I know some people have been talking about dual Mercury boards, but I
> think this would be unnecessary.
>  
> Food for thought
>  
> cheers
>  
> Steve
> G1YLB
>  
>  
> _______________________________________________
> HPSDR Discussion List
> To post msg: hpsdr at hpsdr.org
> Subscription help: http://lists.hpsdr.org/listinfo.cgi/hpsdr-hpsdr.org
> HPSDR web page: http://hpsdr.org
> Archives: http://lists.hpsdr.org/pipermail/hpsdr-hpsdr.org/


 1237464568.0