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Re: [Discuss-gnuradio] Sample rate nomenclature
From: |
Dan Halperin |
Subject: |
Re: [Discuss-gnuradio] Sample rate nomenclature |
Date: |
Wed, 17 Jan 2007 11:45:03 -0800 |
User-agent: |
Thunderbird 1.5.0.9 (X11/20070103) |
Also, gr.file_sink stores data native-Endian, so you may want to include
the Endian-ness in the description.
-Dan
Matt Ettus wrote:
> Chris Stankevitz wrote:
>
>> Q1: When using USRP source_c (complex) with decimation == 8, am I
>> getting 4 million complex samples per second? 64Mhz / 8 = 8MHz floats
>> = 4MHz complex
>>
>
> No.
>
> 64 MS/s complex samples / 8 = 8 MS/s complex
>
>
>> Q2: If I saved that data to a file and shared it with people, would I
>> advertise it as "Complex data, 4 million samples per second"?
>>
>
> Call it 8 MS/s complex.
>
>
>> Q3: If someone read that in using file_source(gr.sizeof_gr_complex,
>> "file.in") and wanted to perform an FFT, what would he specify as the
>> sample rate to the fft_sink_c(sample_rate=x)? My guess is
>> sample_rate=4e6.
>>
>
> 8e6.
>
> Matt
>
>
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