Re: [Discuss-gnuradio] usrp_spectrum_sense.py raw iq samples

[Mallesham Dasari]

Hi Julian,

Thank you so much for the response. By whole WiFi band, I mean from 2.401G to 2.473G, which is complete WiFi band. Is it possible to sweep entire band by using the approach you mentioned? I thought using gnuradio-companion, we can scan only one or few channels depending on the sample rate.

Regarding Hardware: I am using USRP B210 with a sample rate of 8Msps. 

On Wed, Jan 4, 2017 at 4:00 AM, Julian Arnold <address@hidden> wrote:

Hi Mallesham,

the easiest way would probably be to create your own simple flowgraph
using GRC like so:

|---------------------|                  |-----------------|
| USRP Source   | ----------> | File Sink       |
|---------------------|                  |-----------------|

However, remember that writing to a file can be slow. You might want to
consider using a ramdisk.
Also, what whole Wifi band are you talking about? Depending on your
hardware configuration you might run into additional problems.

Cheers,
Julian

On 01/03/2017 09:04 PM, Mallesham Dasari wrote:
> Hello,
>
> I am writing the raw IQ samples (m.raw_data) from
> usrp_spectrum_sense.py to a file. I would like to bypass the FFT
> overhead, which I will do later. I want to scan the whole wide band of
> wifi as fast as possible. Can anyone throw some light on how to take
> only raw samples without FFT?
>
> --
> Best Regards,
> *Mallesham Dasari*
> Department of Computer Science
> Stony Brook University
> USA - 11794
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> address@hidden
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

--

Best Regards,

Mallesham Dasari

Department of Computer Science

Stony Brook University

USA - 11794