Re: [Discuss-gnuradio] GR- IEEE 802.15.4 PHY Issues

2017-07-08 Thread Bastian Bloessl
The staggering of the imaginary part in combination with the half sine pulse shape, makes the constellation point move on the unit circle. During a bit period it makes a 90 degree transition to one of the neighboring constellations (encoding the 0 and 1). It doesn't actually stay at the ideal c

Re: [Discuss-gnuradio] GR- IEEE 802.15.4 PHY Issues

2017-07-08 Thread Bastian Bloessl
Hi, On 07/08/2017 05:03 AM, Tellrell White wrote: Hello Guys I'm currently using the IEEE 802.15.4 PHY. I've added a random source to the flow graph and also a qt gui time and constellation sink. I have two questions, why does the constellation plot attached show more than the usual 4 constel

Re: [Discuss-gnuradio] gr-ieee 802.15.4

2017-01-27 Thread Tellrell White
That did it. Thanks. I'm now able to see an output. Just out of curiosity, is the packet pad really needed?? I have it connected to the rx-in port of the IEEE 802.15.4 PHY. Without anyting connected to that port I'm getting a qpsk demod error. RegardsTellrell On Wednesday, January 25,

Re: [Discuss-gnuradio] gr-ieee 802.15.4

2017-01-25 Thread Bastian Bloessl
On 01/25/2017 11:19 AM, Tellrell White wrote: > I'm looking at energy detection of an IEEE 802.15.4 signal. I was hoping > to be able to utilize the development done minus the higher layer > functionality and use the physical layer transceiver sending some data > so that I could do the energy detec

Re: [Discuss-gnuradio] gr-ieee 802.15.4

2017-01-24 Thread Bastian Bloessl
Hi, > On 24 Jan 2017, at 20:41, Tellrell White wrote: > I recently installed the gnu radio based IEEE 802.15.4 based test bed. My > question is if I don't need the higher layer functionality (Application > layer, Network layer) and I just want to be able to transmit some random data > using t