Re: [Discuss-gnuradio] gr_ieee-80211 receiver

2017-04-12 Thread James Shimer
From my experience with QAM PHY, there are some basic debug tools to verify you are locked on the received signal. Personally, I like the constellation plot, it's an easy visual to see if your QAM symbols are "hitting" the right spot. Typically you have Modulation Error Ratio, SNR etc. I

[Discuss-gnuradio] BPSK Demod

2017-04-12 Thread Kacie O'Neil
I'm having trouble with a BPSK Modulation/Demodulation flowgraph I built (picture attached). I am using a Vector Source and a Constellation Modulator block with a BPSK default constellation object. I'm using a vector source because I want to verify that I can modulate and correctly

[Discuss-gnuradio] Announcing NEWSDR at Tufts University on Thr/Fri June 1/2

2017-04-12 Thread Neel Pandeya
* CALL-FOR-PARTICIPATION * NEWSDR 2017 New England Workshop on Software Defined Radio

[Discuss-gnuradio] Embedded GR-IEEE802-11

2017-04-12 Thread Thomas Wilkinson
Is anyone aware of GR-IEEE802-11 having been implemented with an embedded system? If so, what is the maximum data rate achieved? Thanks, Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org

Re: [Discuss-gnuradio] Receiving Data Packets on IEEE 802.11 a/g/p Receiver from NIC

2017-04-12 Thread Marcus Müller
IIRC, ERP is basically 802.11g. So, configure your NIC to use that. Best regards, Marcus On 12.04.2017 20:39, Ayan Chatterjee wrote: > Hi all, > > I want to send data packets from my laptop to the receiver of > https://github.com/bastibl/gr-ieee802-11 >

[Discuss-gnuradio] Receiving Data Packets on IEEE 802.11 a/g/p Receiver from NIC

2017-04-12 Thread Ayan Chatterjee
Hi all, I want to send data packets from my laptop to the receiver of https://github.com/bastibl/gr-ieee802-11. How do I put my Network Interface Card (NIC) into Extended Rate PHY (ERP) OFDM? And what will be the subsequent process for that? Eagerly waiting for your reply. Thanks. Regards,

Re: [Discuss-gnuradio] Sync short in gr-ieee802-11

2017-04-12 Thread Bastian Bloessl
Hi, On 04/12/2017 03:49 PM, Nikita Airee wrote: > Oh yes it does! But how does MIN_GAP come into the picture? Is it the > minimum gap required between 2 frames for the second to be detected as well? Yes. At the beginning of a a frame, the autocorrelation stays high for some time. This makes sure

Re: [Discuss-gnuradio] apache-thrift fails to install with Pybombs Ubunutu 16.04

2017-04-12 Thread Marcus Müller
For RFNoC itself, you don't need thrift. You might just delete the thrift line in .pybombs/recipes/gr-recipes/gnuradio.lwr and rebuild. Best regards, Marcus On 12.04.2017 16:17, sumitstop wrote: > Hello Chris & Marcus, > > Even after installing libssl-dev, the issue persist. > > I am trying

Re: [Discuss-gnuradio] apache-thrift fails to install with Pybombs Ubunutu 16.04

2017-04-12 Thread sumitstop
Hello Chris & Marcus, Even after installing libssl-dev, the issue persist. I am trying to install RFNoC thru pybombs, and its not going ahead at all :-/ Regards Sumit -- View this message in context:

Re: [Discuss-gnuradio] Sync short in gr-ieee802-11

2017-04-12 Thread Nikita Airee
Oh yes it does! But how does MIN_GAP come into the picture? Is it the minimum gap required between 2 frames for the second to be detected as well? Also if I'm not wrong the first frame is simply discarded when the one coming after is detected because there seems to be no provision for keeping the

[Discuss-gnuradio] Solved:Re: gr-ieee802_11 receiver

2017-04-12 Thread serefay
Hi all, thanks to Bastian i have solved my problem. So the problem was due to zero padding between regenerated frames as Bastian said : "The padding shouldn't be all zeros but contain a small amount of noise. If you send an all-zeros stream of samples, the receiver will constantly divide by

Re: [Discuss-gnuradio] Ettus TwinRx and Music algorithm

2017-04-12 Thread Derek Kozel
Hello Trek, The DOA demo is hosted at the following link. There are several simulation programs included in the apps directory. https://github.com/EttusResearch/gr-doa/ Regards, Derek On Wed, Apr 12, 2017 at 2:28 AM, Trek Liu wrote: > We are interested in evaluating the Ettus

Re: [Discuss-gnuradio] Sync short in gr-ieee802-11

2017-04-12 Thread Marcus Müller
Hi Nikita, I'll jump into the general_work method here, directly: switch(d_state) { case SEARCH: { int i; for(i = 0; i < ninput; i++) { if(in_cor[i] > d_threshold) { if(d_plateau <

[Discuss-gnuradio] Sync short in gr-ieee802-11

2017-04-12 Thread Nikita Airee
Hello everyone, I was trying to understand how the synchronization in gr-ieee802-11 actually works and went through: Bastian Bloessl, Michele Segata, Christoph Sommer and Falko Dressler, "An IEEE 802.11a/g/p OFDM Receiver for GNU Radio" However, it seems that the Short Sync and many other

[Discuss-gnuradio] Ettus TwinRx and Music algorithm

2017-04-12 Thread Trek Liu
We are interested in evaluating the Ettus TwinRx platform for direction finding, just wonder if the MUSIC source code is fully opened in the public domain? and can we evaluate with some sample data before we buy the hardware? thanks.___

Re: [Discuss-gnuradio] gr_ieee-80211 receiver

2017-04-12 Thread Bastian Bloessl
Hi, LiLi writes: > Hi, everyone > > I am using gr-ieee-80211 to recieve wifi packets on 2.4G. > The operating system is Ubuntu.The version of GNU RADIO is 3.7.5, and we use > USRP N210 with SBX daughterboard. > Our purpose: > Capture packets of 802.11 protocol on 2.4G

[Discuss-gnuradio] gr_ieee-80211 receiver

2017-04-12 Thread LiLi
Hi, everyone I am using gr-ieee-80211 to recieve wifi packets on 2.4G. The operating system is Ubuntu.The version of GNU RADIO is 3.7.5, and we use USRP N210 with SBX daughterboard. Our purpose: Capture packets of 802.11 protocol on 2.4G or the other band SBX daughterboard Our problems: When