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0 votes
0 answers
45 views

Second-order variation of an integral

I was reading the paper SISAR Imaging for Space Debris based on Nanosatellites, in which the Fresnel-Kirchoff diffraction formula is applied for a scenario in which the receiver, transmitter and ...
DaDSPGuy's user avatar
0 votes
1 answer
48 views

Physical validity of taking limits inside an integrand

Consider an integral expression for the spectrum, $$I(\omega)=\int_{-\infty}^{\infty}G(\omega,t)dt\tag{1}$$ with $$G(\omega,t)=g(\omega,t)e^{t/\tau}.$$ Here $t$ is time, $\omega$ is frequency and $\...
Varun Premkumar's user avatar
4 votes
1 answer
379 views

Fractional Fourier Transform and Fresnel Propagation

I am currently trying to wrap my head around Fresnel propagation, and I understand it is mathematically linked to the Fractional Fourier Transform, but I'm having a hard time with the units and the ...
Jordan's user avatar
  • 41
0 votes
1 answer
76 views

Proving a theorem about the average value of a function over a specific region

Let's say transient phenomenon in a function. A transient phenomenon is defined as: "A transient event is a short-lived burst of energy in a system caused by a sudden change of state." So, ...
Jan Eerland's user avatar
1 vote
0 answers
52 views

Is there a Bayesian theory of deterministic signal? Prequel and motivation for my previous question

This is a prequel to my question: What's the probability distribution of a deterministic signal or how to marginalize dynamical systems? Clearly my question looks at the same time fairly ...
Fabrice Pautot's user avatar
1 vote
0 answers
180 views

What's the probability distribution of a deterministic signal or how to marginalize dynamical systems?

In many signal processing calculations, the (prior) probability distribution of the theoretical signal (not the signal + noise) is required. In random signal theory, this distribution is typically a ...
Fabrice Pautot's user avatar