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Re: [Discuss-gnuradio] The format of I/Q sample

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] The format of I/Q sample
Date: Mon, 15 Aug 2011 13:45:12 -0400
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Hi, Marcus,

Thanks a lot for your quick reply!
Then start from where, the integers become floating point numbers?
I'd like to see how they are converted.


They are never floating-point numbers inside the FPGA or on the host interface. For UHD, they get scaled and converted inside the appropriate files. I can't tell you which specific file, but the UHD source code is available, and I'm sure Josh could tell you where the conversion between host-transport-format and gnuradio-format happens with UHD/gr-uhd.

Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium

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