Questions on the mathematical aspects of signal processing. Please consider first if your question might be more suitable for http://dsp.stackexchange.com/
6
votes
3answers
330 views
Describing a Wave
I have this wave in front of me, and I am to describe this into a math description such as its function that is equivalent to representing this wave. I have no idea how to start and could use some ...
5
votes
3answers
314 views
How can I interpret “energy” in signals?
I am learning about various signal processing methods in my university course, and I can't seem to grasp what 'energy' in signals represent. I mean, I know that it is the integral of the absolute ...
1
vote
2answers
159 views
Combining bins of FFT ouput
I was trying to combine output of a $2n$ point Real FFT to generate custom FFT bins.
For example the FFT generates components at equally spaced frequencies $f_0,f_1,f_2 ...f_{n-1}$
$f_0$ = ...
5
votes
3answers
287 views
Looking for a Calculus Textbook
I want to start signal processing and I need a book that satisfies my mathematical requirements: I am in the third grade of high school and I don't know any useful thing about limit, differential, ...
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2
votes
3answers
357 views
Simplifying the expressions for the magnitude and phase of a Fourier transform
$$h[n] = 2( \delta[n-2]-\delta[n-1]-\delta[n-3])$$
i computed my frequency response and i have this now: $$H[e^{j \omega}] = 2[ e^{-2 j \omega} - e^{-j \omega}-e^{-3 j \omega}]$$
$$H[e^{j \omega}] = ...
2
votes
0answers
90 views
Analysing an optics model in discrete and continuous forms
A discrete one-dimensional model of optical imaging looks like this:
$I(r) = \sum_i e_i P(r - r_i)$
Here, the $e_i$ are point light sources at locations $r_i$ in the object and $P$ is a point spread ...
1
vote
1answer
313 views
Can the differentiating and squaring process in the cochlea explain a reported dichotic stimulation experiment?
On this math.stackexchange
on url What is Octave Equivalence?
in an answer on the related ( octave equivalence ) question is stated:
Mathematically, this signifies that the mammalian cochlea ...
0
votes
2answers
3k views
MATLAB interpretation of Xcorr2 - Cross Correlation function
I have two vectors of matching lengths. They are readings from two different sensors (one is from a smartphone and the other is from a wiimote) of the same hand movement. I am trying to find the time ...
