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Re: [Discuss-gnuradio] BBN 802.11 bbn_80211b_rx.py
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From: |
Brian Padalino |
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Subject: |
Re: [Discuss-gnuradio] BBN 802.11 bbn_80211b_rx.py |
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Date: |
Mon, 28 Jul 2008 13:13:49 -0400 |
On Mon, Jul 28, 2008 at 12:28 PM, yyzhuang <address@hidden> wrote:
>
> What does "combination of the LO in the front end and the digital
> downconverter" mean please?
For general radio architecture, please see:
http://en.wikipedia.org/wiki/Superheterodyne
Generally, the LO/synthesizer has some discrete step size (12.5kHz,
250kHz, etc). To get down to baseband, the resultant signal is then
shifted in frequency down using the digital downconverter:
http://en.wikipedia.org/wiki/Digital_Down_Converter
Brian