All Questions
Tagged with signal-processing oscillators
9
questions
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126
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What would happen when two wave functions intersect in a Fourier series representation of periodic signals? [closed]
I saw a piece of code on github which transforms the planetary movement into the fourier wave function.
These circles are given by the x and y ordinates: x=cos(ωt) y=sin(ωt), which are periodic. ...
- 109
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53
views
Is there any known result about the "average period" of a complicated oscillating function?
Say we have some frequency spectrum, $f(\omega)$, where
$$
f(t) = \frac{1}{2\pi} \int_{-\infty}^\infty d\omega \; f(\omega)e^{-i\omega t},
$$
and we know that $f(t)$ is some sort of ...
- 188
0
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1
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34
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RLC Bandpass Filter network
Can anybody tell me what the "s" in this equation is? I am looking for the transfer function of this circuit
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1
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2k
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Help in understanding frequency vs phase difference graph
The following graph in my textbook plots the relationship of external driving frequency and phase difference of the driver and a system. From this question (Why dosn't amplitude increase when ...
- 167
3
votes
1
answer
721
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Applying Kramers-Kronig relation to a simple damped oscillator
I just discovered the Kramers-Kronig relation and am trying to apply it to a simple damped oscillator of the form subjected to an impulse at $t=0$, which is a causal system:
$$m\ddot x + c\dot x + k ...
- 734
0
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1
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654
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How to estimate the frequency of the sample rate?
I'm studying for my class of physics laboratory and I need help with something:
Let's say I need to deduce the constant of elasticity of a spring and I will do it using a dual-range force sensor, ...
1
vote
1
answer
753
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Phase Locking vs. Synchrony
Consider two cosinusoidal signals given by \begin{gather*} z_1(t) = A_1\cos\phi_1(t)\\ z_2(t) = A_2\cos\phi_2(t) \end{gather*}
with
\begin{gather*} \phi_1(t) = (\omega_1 t + \theta_1)\\\phi_2(t) = (...
- 359
1
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2
answers
539
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Electrical equivalent of inverted pendulum
Background
I am working on a summer project to design labs for undergraduate students. One of the topics is feedback and there is already quite a lot of stuff about passive feedback, so we might add ...
- 11.6k
1
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2
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814
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Why is a sine wave considered the fundamental building block of any signal? Why not some other function? [closed]
It is mathematically possible to express a given signal as a sum of functions other than sines and cosines. With that in mind, why does signal processing always revolve around breaking down the signal ...
- 113