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Re: [Discuss-gnuradio] BASIC_RX complex sampling
From: |
Marcus D. Leech |
Subject: |
Re: [Discuss-gnuradio] BASIC_RX complex sampling |
Date: |
Thu, 16 Apr 2009 14:51:06 -0400 |
User-agent: |
Thunderbird 2.0.0.19 (X11/20090105) |
Johnathan Corgan wrote:
> On Thu, 2009-04-16 at 14:22 -0400, Marcus D. Leech wrote:
>
>
>> Does the FPGA code for BASIC_RX support a Hilbert transform to convert
>> one of the real inputs into a complex stream?
>>
>
> No, but if your signal of interest has a passband above DC, when you
> "tune" the BasicRX, the complex mixer in the FPGA will still
> down-convert it to a complex baseband I/Q signal.
>
> Johnathan
>
>
>
>
Ah, fabulous. So if I have a 10.7MHz IF coming out of a receiver in
real mode, I can just "tune" the BASIC_RX
to 10.7, and it'll as-if-by-magic become a complex signal of +/-5Mhz?
Sweet.
--
Marcus Leech
Principal Investigator, Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org