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Comp.dsp is a worldwide Usenet news group that is used to discuss various aspects of digital signal processing.
There are 21 threads in our archives.
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filtering random processes
alex65111 - 2010-01-16 18:22:00
Let's assume on an input of the passband filter there is a complex white
noise.
As on known spectral density on an input it is possible to calculate noise
level on an output of the passband filter?...
statistica and signal processing
alex65111 - 2009-08-27 18:23:00
Hi!
In drdc.gc.ca/PDFS/unc06/p518839.pdf the left-hand side of expression 6
displays to the right side. Can someone explain in more detail the logical
and mathematical nature of changes occurring i...frequency respons of halfband filter?
alex65111 - 2009-04-15 17:31:00
Let the halfband filter is defined
H=[0.033402 0 -0.015082 0 0.018968 0 -0.024143 0 0.031336 0 -0.042322 0
0.061361 0 -0.10468 0 0.31784 0.5 0.31784 0 -0.10468 0 0.061361 0 -0.042322
0 0.031336 0 ...Error in "manual" inverse DFT
alex65111 - 2009-03-22 08:06:00
Why do not coincide mfT and sall?, where in a code an error?
clear all
t=0:(1024-1);
f=0.4;
A=2.5;
fi=pi/4;
s0=A*exp(sqrt(-1)*2*pi*f*t+fi);
s=[zeros(1, 100) s0 zeros(1,250)];
s=s+(0.5*randn...prewhitening?
alex65111 - 2009-03-15 06:15:00
"...the optimal detector consists of prewhitening the observation before
applying a matched filter..."
What is "prewhitening"?
When the given procedure should be applied?
...Re: group delay time?
alex65111 - 2009-02-05 15:47:00
> On Feb 5, 3:08=A0am, "alex65111" wrote:
> > It is known, that non-uniformity of the frequency response of the
channel
> > influences level of ISI. And what kind of distortions is characteris...frequency response of cic
alex65111 - 2008-07-20 05:26:00
Not clearly, why instead of four petals one is drawn only
R = 8; % Decimation factor
M = 1; % Differential delay
N = 9; % Number of stages
f=0:0.001:0.5;
fcic=(abs(sin(pi*M*f)./(eps+sin(pi*f/...Parameters of mfilt.cicdecim?
alex65111 - 2008-07-11 16:47:00
y=mfilt.cicdecim (R, M, N, IWL, OWL, [50 29 24 24 24 24 24 24 24 24])
Is not clear, the physical sense of M - Differential delay and [50 29 24
24 24 24 24 24 24 24] ?
By what criterion gets o...diversity and beamforming
alex65111 - 2008-03-23 07:33:00
Spatial diversity and beamforming solves one problem or each method solves
strictly own problem?
In what these methods are similar among themselves and than differ?
...Problem in Jakes_filter...
alex65111 - 2008-02-01 17:51:00
In " Principles of Communication Systems Simulation with Wireless
Applications " it is resulted program builds up a two-tap TDL model and
computes the output for the two inpput signal of interest (c14...