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Instruction Manual (German)

LTI means **L**inear **T**ime **I**nvariant. The transmission behavior of an LTI-System can be fully described by its transfer function or impulse response.

$Y(f)=X(f)\cdot H(f)$

$y(t)=x(t)\ast h(t)$

The following transfer function is given:

$H(f)=\frac{1}{1+j(f/{f}_{H}}$.

This is equivalent to a RC-low pass with the 3 dB cutoff frequency

This LTI-System is analyzed by a harmonic oscillating signal with constant amplitude and variable frequency. The resulting signal is a damped and phase-shifted harmonic oscillation.

$y(t)=\stackrel{\wedge}{x}|H(f)|\mathrm{cos}(2\pi {f}_{0}t-b(f))$

You can also choose from a variety of input signals and observe how the LTI-system affects the signal.