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Today's Topics:
1. Difference between set_rx_rate/set_tx_rate and
set_master_clock_rate (Pol Henarejos)
2. Re: Multiple-carrier signal with Simulink and USRP2 (Nick Pers)
3. Re: Multiple-carrier signal with Simulink and USRP2 (Nick Pers)
----------------------------------------------------------------------
Message: 1
Date: Wed, 02 Mar 2011 15:17:06 +0100
From: Pol Henarejos <[email protected]>
To: [email protected]
Subject: [USRP-users] Difference between set_rx_rate/set_tx_rate and
set_master_clock_rate
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Hi list,
Which is the difference between set_rx_rate/set_tx_rate and
set_master_clock_rate?
Thanks.
--
Pol Henarejos
Research Engineer, MSc
[email protected]
Centre Tecnol?gic de Telecomunicacions de Catalunya (CTTC)
Engineering Unit
Parc Mediterrani de la Tecnologia
Av. Carl Friedrich Gauss, 7
08860 Castelldefels
Tel: +34 93 396 71 70 Ext: 2177
Fax. +34 93 645 29 01
www.cttc.es
------------------------------
Message: 2
Date: Wed, 2 Mar 2011 16:26:53 +0200
From: "Nick Pers" <[email protected]>
To: "Mike McLernon" <[email protected]>
Cc: [email protected]
Subject: Re: [USRP-users] Multiple-carrier signal with Simulink and
USRP2
Message-ID: <5A0F3A4CC0D54CA888CB32DFD611A6F1@REX>
Content-Type: text/plain; charset="iso-8859-1"
Yes Mike, this is the demo that I use to transmit/create OFDM signals. I have
connected a USRP2 Transmitter and a FFT Spectrum Scope block.
The Scope shows the OFDM signal as it should be, but it is is different from
the USRP2 transmitted signal (monitored with a spectrum analyzer).
I am trying to figure out if there is a problem with firmware, USRP2
Transmitter block or something else.
Have you tried this?
Nick
----- Original Message -----
From: Mike McLernon
To: Nick Pers
Cc: [email protected]
Sent: Wednesday, March 02, 2011 4:03 PM
Subject: RE: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Nick,
The serialized data should be in a column vector format. To see an example
of OFDM in the Comms Blockset, type 'commwlan80211a' at the MATLAB command
prompt. That 802.11a demo shows a way to create multiple OFDM symbols, then
serialize them at the transmitter output.
Hth,
Mike
From: Nick Pers [mailto:[email protected]]
Sent: Wednesday, March 02, 2011 6:00 AM
To: Mike McLernon
Cc: [email protected]
Subject: Re: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Mick and all,
I have already tried to send serialized data to the USRP2 Transmitter block
but I dont get the desired result.
Is there a special way I should use to send the serialize data?
Could you please send me or point me a simple working example?
Thanks
Nick
----- Original Message -----
From: Mike McLernon
To: Nick Pers
Cc: [email protected]
Sent: Tuesday, March 01, 2011 4:06 PM
Subject: RE: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Nick,
It certainly is possible, but you will have to serialize the data first.
The USRP2 Transmitter block accepts only column vector inputs.
Hth,
Mike
From: [email protected]
[mailto:[email protected]] On Behalf Of Nick Pers
Sent: Tuesday, March 01, 2011 6:33 AM
To: [email protected]
Subject: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi all,
Is it possible to transmit multiple carrier signal (OFDM) with Simulink and
USRP2?
Thanks,
NIck
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Message: 3
Date: Wed, 2 Mar 2011 16:26:53 +0200
From: "Nick Pers" <[email protected]>
To: "Mike McLernon" <[email protected]>
Cc: [email protected]
Subject: Re: [USRP-users] Multiple-carrier signal with Simulink and
USRP2
Message-ID: <9D9C709A28FE4CC5993C2A9A42BFAD59@REX>
Content-Type: text/plain; charset="iso-8859-1"
Yes Mike, this is the demo that I use to transmit/create OFDM signals. I have
connected a USRP2 Transmitter and a FFT Spectrum Scope block.
The Scope shows the OFDM signal as it should be, but it is is different from
the USRP2 transmitted signal (monitored with a spectrum analyzer).
I am trying to figure out if there is a problem with firmware, USRP2
Transmitter block or something else.
Have you tried this?
Nick
----- Original Message -----
From: Mike McLernon
To: Nick Pers
Cc: [email protected]
Sent: Wednesday, March 02, 2011 4:03 PM
Subject: RE: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Nick,
The serialized data should be in a column vector format. To see an example
of OFDM in the Comms Blockset, type 'commwlan80211a' at the MATLAB command
prompt. That 802.11a demo shows a way to create multiple OFDM symbols, then
serialize them at the transmitter output.
Hth,
Mike
From: Nick Pers [mailto:[email protected]]
Sent: Wednesday, March 02, 2011 6:00 AM
To: Mike McLernon
Cc: [email protected]
Subject: Re: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Mick and all,
I have already tried to send serialized data to the USRP2 Transmitter block
but I dont get the desired result.
Is there a special way I should use to send the serialize data?
Could you please send me or point me a simple working example?
Thanks
Nick
----- Original Message -----
From: Mike McLernon
To: Nick Pers
Cc: [email protected]
Sent: Tuesday, March 01, 2011 4:06 PM
Subject: RE: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi Nick,
It certainly is possible, but you will have to serialize the data first.
The USRP2 Transmitter block accepts only column vector inputs.
Hth,
Mike
From: [email protected]
[mailto:[email protected]] On Behalf Of Nick Pers
Sent: Tuesday, March 01, 2011 6:33 AM
To: [email protected]
Subject: [USRP-users] Multiple-carrier signal with Simulink and USRP2
Hi all,
Is it possible to transmit multiple carrier signal (OFDM) with Simulink and
USRP2?
Thanks,
NIck
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