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Re: [Discuss-gnuradio] 25 MS/s at 16 bits I/Q vs. gr.sizeof_gr_complex
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From: |
Marcus D. Leech |
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Subject: |
Re: [Discuss-gnuradio] 25 MS/s at 16 bits I/Q vs. gr.sizeof_gr_complex |
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Date: |
Sun, 15 May 2011 10:07:42 -0400 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
On 05/15/2011 09:04 AM, Daniel Bartel wrote:
> Hello,
>
> I was wondering about a little conflict concerning the sizes of the data
> types in GNU Radio.
>
> The UHD driver sends 16 bits I, 16 bits Q samples over the ethernet interface
> at 25 MS/s and the return value of "gr.sizeof_gr_complex" is 8 bytes (64
> bits).
> How does this actually work?
> I have looked for some documentation of UHD, but I wasn't were lucky.
>
> Best regards,
> Daniel
>
>
UHD converts the incoming samples to complex float, scaled into {-1.0,1.0}.
--
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org