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Re: [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit
From: |
Brian Padalino |
Subject: |
Re: [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit |
Date: |
Fri, 27 Mar 2009 20:58:58 -0400 |
On Fri, Mar 27, 2009 at 8:36 PM, feldmaus <address@hidden> wrote:
> Markus Feldmann <feldmann_markus <at> gmx.de> writes:
>
>>
>> Ok, here is a clipping from the data at the beginning:
>> 0 - 1i
>> -1 + 0i
>
> As you said the Output is stored as 64 bit value, 32bit I and 32 bit Q,
> but I and Q do have bot real and complex values ?!
> As you can see, every line consists only one real and one complex value.
>
> Wherefor is the first line ?
> For the I part or the Q part ?
> Does the lines of the I and Q part change from line to line ?
> 0 - 1i --> real(I) - imag(I)
> -1 + 0i --> real(Q) + imag(Q)
You may want to refresh your knowledge of complex numbers:
http://en.wikipedia.org/wiki/Complex_number
http://www.dspguru.com/info/tutor/QuadSignals.pdf
Brian
- [Discuss-gnuradio] uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/26
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/26
- Re: [Discuss-gnuradio] uses gr.file_sink 32 bit or 64 bit, Johnathan Corgan, 2009/03/26
- Re: [Discuss-gnuradio] uses gr.file_sink 32 bit or 64 bit, Eric Blossom, 2009/03/26
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Markus Feldmann, 2009/03/26
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Markus Feldmann, 2009/03/26
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/27
- Re: [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit,
Brian Padalino <=
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/28
- Re: [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Brian Padalino, 2009/03/28
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/27
- Re: [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Johnathan Corgan, 2009/03/27
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/27
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Patrick Strasser, 2009/03/30
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Markus Feldmann, 2009/03/30
- [Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, Patrick Strasser, 2009/03/31
[Discuss-gnuradio] Re: uses gr.file_sink 32 bit or 64 bit, feldmaus, 2009/03/28