Re: [Discuss-gnuradio] Channel Model and SNR

2015-07-25 Thread Francisco Albani
1) The last time I checked the code, I arrived at the same conclusion. 2) Its just a name for a complex number in which the real and imaginary parts are taken from a gaussian distribution. I think it comes from the fact that a 2D gaussian random vector radius has Rayleigh distribution. You didn't

Re: [Discuss-gnuradio] First Post - Question - GRC Repeat Block

2015-07-25 Thread Kevin McQuiggin
I should have added that I am running gnuradio version 3.7.7.1 under OSX 10.10.4. > On Jul 25, 2015, at 8:26 PM, Kevin McQuiggin wrote: > > Hi All: > > I would like to use a repeat block to stretch the duration of vectored input > dynamically. For example, (0,1,0,1,…) input should become >

[Discuss-gnuradio] First Post - Question - GRC Repeat Block

2015-07-25 Thread Kevin McQuiggin
Hi All: I would like to use a repeat block to stretch the duration of vectored input dynamically. For example, (0,1,0,1,…) input should become (0,0,0,1,1,1,0,0,0,…), the repeat count under control of a variable. In this example the Interpolation parameter would be 3. I observe that the “Inte

[Discuss-gnuradio] GNU Radio 3.7.8 Release Candidate 1, Call For Testers, and Live SDR Environment Snapshot Update

2015-07-25 Thread Johnathan Corgan
*Feature Freeze and Release Candidate* The merge window for new features for GNU Radio 3.7.8 has closed, release candidate 3.7.8rc1 has been tagged, and only bug fixes will be accepted into the tree prior to release. The planned release date is August 8. If you have any pending fixes to submit,

[Discuss-gnuradio] Channel Model and SNR

2015-07-25 Thread Richard Bell
I'm trying to figure out how to convert the channel model noise voltage value into an SNR value for a simulation I'm making. The user wants to be able to enter an SNR value and simulate the BER. So I'm looking at the source code for Channel Model, and two things happen: 1) I would conclude that th

Re: [Discuss-gnuradio] First integration (was: Re: Run graph/ scheduler overhead)

2015-07-25 Thread Dennis Glatting
On Fri, 2015-07-24 at 23:30 -0700, Richard Bell wrote: > This topic of hardware efficient designs vs general purpose processor > (GPP) efficient is very interesting. I assumed the most efficient > hardware designs would tend to translate well into a GPP, because most > good hardware designs are goo