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Re: [Discuss-gnuradio] hi all, can I use one RX receive a wideband signa
From: |
Walker, Robert CIV NWDC, Science Advisor |
Subject: |
Re: [Discuss-gnuradio] hi all, can I use one RX receive a wideband signal and then seperate it to many narrowband signals |
Date: |
Tue, 21 Dec 2010 14:10:13 -0500 |
On Tue, Dec 21, 2010 at 06:02:44PM +0800, James Jordan wrote:
> Hi all, I need to receive many narrowband signals, but usrp hard ware only
> provide 4 RX,
> so I need to receive more than one narrowband signals per RX. Is my idea
> possible?
> I dont want to use more than one usrp to achieve that, anyway which will be an
> option if my first idea can't work.
On Tue, 21 Dec 2010 11:19:30 +0100, Martin Braun replied:
>If your total bandwidth (sum of all bandwidths) does not exceed a couple
>of MHz, you can use the polyphase channelizer (pfb_channelizer_ccf).
>The result will be an equally spaced set of narrowband channels.
Why the "couple of MHz" limitation? Is it because of the USRP, the USB
interface, the host computer, the polyphase channelizer, or some combination?
In short, why can't the entire 6 MHz USRP bandwidth be channelized?
Thanks,
Rob
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- Re: [Discuss-gnuradio] hi all, can I use one RX receive a wideband signal and then seperate it to many narrowband signals,
Walker, Robert CIV NWDC, Science Advisor <=