Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
The noise that I am using is an impulsive noise which distribution is complex but can be approximated to a Middleton Class A distribution or an Alpha stable distribution. Those two distributions are well known but they are only approximations of my real noise.
I don't really know what is...
Shannon’s Channel Capacity Theorem (or the Shannon Hartley
Theorem) states that:
C= B* log2 (1 + S/N) bits/s.
Is this formula true only for Additive White Gaussian Noise (AWGN) or is it independent from the distribution of the noise?
In my case I have a non Gaussian noise and I want to...
I believe it may be some thing related to eps , realmax and realmin values that Matlab uses.
i Just found out that It may give very bad results . For example try to type
x=0.1+0.1+0.1
c=0.3-x
the result is -5.5511e-17 But it is obvious that 0.3-x should be equal to Zero.
But I don't know...
Actually I am using Matlab.
The (.)H denotes the conjugate transpose (Hermitian ) matrix of H is H'
Here is my matlab code:
H= [randn(2,1 ) + j*randn(2,1 )]
H =
-0.5288 + 1.4203i
-0.0406 + 1.2239i
P=H*(H'*H)^-1*H'
P =
0.6050 + 0.0000i 0.4635 + 0.1553i
0.4635 - 0.1553i...
Hello,
I tried to do the subspace projection and to use Q=I-P but the resulting matrix Q is always a null matrix!
I tried to use more receivers to increase the dimensions of the H matrix but the result is always the same (Q is null all the time).
Do you know any other ideas that I can use...
Thanks for your respond!
I just figured out that I made a mistake describing the problem;
Actually, the H2 Matrix should be 2x1 Matrix. I made a draw that may give a better representation of my problem:
and the system should be:
can we still do the subspace projection even if the H2 Matrix...
Hello,
suppose I have a 2x2 MIMO system and that the received signal is:
Y=H*X+H2*I+BBG Where H1 is my Rayleigh channel Matrices (H1(ij) are complexes random variables)
X is my original transmitted signal
H2 is an...
Actually I am more interested to the measuring of the noise density.
The measurements show that the noise is non-Gaussian: it is very Height and it have two components : a Gaussian and with some pulses and the PDF is heavy tailed.
Also if a pulse happens it is followed by resulting damped...
I have some noise measurements and 4 different models that can generate a similar noises using estimated parameters from the real measurements. To compare the estimated noises I calculated the PDF, the CCDF and the PSD.
To compare the results I used the Kull-Back Leibler divergence of the PDF...
Hello,
I have some non Gaussian noise measurements and I want to find a statistical model that best represents those measurements.
The statistical models that I used for comparison are Middleton Class A , Alpha stable and the normal Gaussian distributions.
First I calculated the PDF and the...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
