Author: Panagiotis
25
Jan
It is possible to load data from a file for plots with PSTricks in TeX. According to the
PSTricks manual all that is needed is a file with a list of coordinate pairs delimited by curly braces , parentheses, commas.
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Author: Panagiotis
24
Jun
In
[1, p. 94 exercise 4.2] we are asked to consider the estimator
where
for the process of Problem 4.1. We are informed that this estimator may be viewed as an averaged periodogram. In this point of view the data record is sectioned into blocks (in this case, of length 1) and the periodograms for each block are averaged. We are asked to find the mean and variance of
and compare the result to that obtained in
[2].
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In problem
[1, p. 94 exercise 4.1] we will show that the periodogram is an inconsistent estimator by examining the estimator at
, or
If
is real white Gaussian noise process with PSD
we are asked to find the mean an variance of
. We are asked if the variance converge to zero as
. The hint provided within the exercise is to note that
where the quantiiy inside the parenthesis is
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Author: Panagiotis
31
Jan
I recently wanted to update my OpenCV installation and try to find out why my usb camera – using the macam drivers – was not working with the libraries installed on my system. So this time i had the intention to dig into the code of OpenCV release. That meant using the easy way – mac ports – to install the OpenCV libraries was not an option.
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Author: Panagiotis
17
Mai
In
[1, p. 62 exercise 3.19] we are asked to find for the multiple sinusoidal process
the ensemble ACF and the temporal ACF as
, where the
‘s are all uniformly distributed random variables on
and independent of each other. We are also asked to determine if this random process is autocorrelation ergodic.
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