=> GNU Radio ISDB-T DTV Transmitter (ARIB STD-B31).
On 10/14/2017 11:56 AM, Benny Alexandar wrote:
> Hi Felix,
>
> I have couple of Ides for GSOC
>
> 1. DRM digital radio receiver on GNU Radio. We have only DRM
> transmitter but no receivers are available.
> DRM is mainly used in Europe,
PS: the fact that reducing by 10 the number of samples in the FFT rises the
noise level by 10 dB definitely hints at dB/Hz rather than dB as Y-axis unit.
JM
This message was sent using IMP, the Internet Messaging Program.
Shouldn't my aliasing experiment raise the noise floor rather than keep it
constant ?
By taking only every 10th sample, you also reduce the sample rate
by a factor of 10. So you have the same power in 1/10th of the
original bandwidth. In other words, noise power per Hz has
increased by a factor
On Sun, Oct 15, 2017 at 02:03:15PM +0200, Jean-Michel FRIEDT wrote:
> Shouldn't my aliasing experiment raise the noise floor rather than keep it
> constant ?
By taking only every 10th sample, you also reduce the sample rate
by a factor of 10. So you have the same power in 1/10th of the
original
Hi Martin,
ah, yeah, can see that. We couldn't (and really, shouldn't) abuse a GSoC
student to do e.g. server maintenance, either, so yeah, infrastructure
is a dangerous area.
I think that extending the newmod template to hold the packaging
scripts, write those and write a tool to initiate local
Hi Jean-Michel,
So, what I see in your flow graph is that you have a (real signal, let's
talk about single-sided bandwidth) ca 13kHz wide piece of noise in your
16 kHz bandwidth – or, to put it so that I can forget about the absolute
(nominal) sampling rate totally, 13/16 of your band is noise
I want to demonstrate how aliasing rises the noise level upon decimation.
I have a trivial flow graph with a noise source, whose bandpass I
limit to make
sure I know its spectral characteristics, and I compare the spectral power
with and without decimation. The decimation FIR is 1 so I believe
