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Re: [Discuss-gnuradio] uhd.usrp_source COMPLEX_INT16 vs COMPLEX_FLOAT32
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From: |
Josh Blum |
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Subject: |
Re: [Discuss-gnuradio] uhd.usrp_source COMPLEX_INT16 vs COMPLEX_FLOAT32 |
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Date: |
Fri, 14 Oct 2011 08:48:53 -0700 |
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User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.23) Gecko/20110922 Lightning/1.0b2 Thunderbird/3.1.15 |
On 10/14/2011 03:31 AM, Kyle Zhou wrote:
> the usrp_source in gr-uhd has two io_type uhd.io_type.COMPLEX_INT16 and
> uhd.io_type.COMPLEX_FLOAT32.
> To my understanding, the float version will produce samples between -1.0 and
> +1.0.
> What is the range of the int16 version?
> If the same signal is fed into the antenna, what is the relative scaling
> between these two versions?
> Regards
> K Z
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
1.0 for floats and (1 << 15) for shorts should map to the full-scale of
the ADC/DAC.
http://files.ettus.com/uhd_docs/doxygen/html/classuhd_1_1io__type__t.html
-Josh