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Re: [Discuss-gnuradio] How To Change Tx Frequency During Transmission
From: |
Triet Vo-Huu |
Subject: |
Re: [Discuss-gnuradio] How To Change Tx Frequency During Transmission |
Date: |
Tue, 23 Dec 2014 21:22:49 -0500 (EST) |
Hi Ly, you might consider as an alternative solution shifting the frequency by
multiplying with a sine wave if your application can sample at high rate.
----- "Nguyễn Văn Lý" <address@hidden> wrote:
> Hi Marcus,
>
> I use bladeRF hardware, not USRP. So I have "osmocom" sink and source
> blocks in my flow graph. Do you have any idea about this.
>
> Thank you very much,
>
>
> Best Regards,
> Van-Ly
>
>
>
>
>
>
>
>
>
>
>
>
> Van-Ly Nguyen,
> Research Assistant,
> Signals and Systems Laboratory - SSL
> Faculty of Electronics and Telecommunications - FET
>
> University of Engineering and Technology - UET
>
> Vietnam National University, Hanoi - VNU
>
>
> Tel: (+84) 97 881 9406
>
>
>
> On Wed, Dec 3, 2014 at 10:28 PM, Marcus Müller <
> address@hidden > wrote:
>
>
>
> Hello Van-Ly,
>
> what hardware are you using?
> If you're using any USRP, then the gr-uhd [1] blocks [2] will allow
> you to tune using stream tags, asynchronous messages and method calls.
> From your problem description, it sounds like using stream tags is
> your best choice. If you want to know more about how to use these, I
> recommend going through the new guided tutorials [3], especially part
> 5 (which kind of relies on you having read the first four parts, but
> since I think you're already somewhat friends with GNU Radio, this
> might not be too much work).
>
> Greetings,
> Marcus
>
>
> [1] http://gnuradio.org/doc/doxygen/page_uhd.html
> [2] sink:
> http://gnuradio.org/doc/doxygen/classgr_1_1uhd_1_1usrp__sink.html
> [3]
> http://gnuradio.org/redmine/projects/gnuradio/wiki/Guided_Tutorials
>
>
>
> On 12/03/2014 04:21 PM, Nguyễn Văn Lý wrote:
>
>
>
>
> Hello everyone,
>
> Does anyone know how to change Tx frequency during transmission. I
> mean the
> transmitter operates at f0 GHz in some interval of time and then
> change to
> operate at f1 GHz.
>
> Sincerely,
> Van-Ly
>
> Van-Ly Nguyen,
> Research Assistant,
> Signals and Systems Laboratory - SSL
> Faculty of Electronics and Telecommunications - FET
> University of Engineering and Technology - UET
> Vietnam National University, Hanoi - VNU
>
> Tel: (+84) 97 881 9406
>
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