invariant system in a sentence

If a time-invariant system is also linear, it is the subject of LTI system theory ( linear time-invariant ) with direct applications in NMR spectroscopy, seismology, Discrete time-invariant systems are known as shift-invariant systems.
In the time domain, the usual choice to explore the time response is through the step response to a bandwidth of a first-order time-invariant system, that is, the frequency at which the output signal power drops to half the value it has at low frequencies.
As this is a Fourier-based method of analysis, it is valid only for linear and shift-invariant imaging systems ( analogous to linear and time-invariant system theory but replacing time invariance with spatial-shift invariance ) involving wide-sense stationary or wide-sense cyclostationary noise processes.
In any linear time-invariant system, all of the currents and voltages can be expressed with the same " s " parameter as the input to the system, allowing the time-varying complex exponential term to be canceled out and the system described algebraically in terms of the complex scalars in the current and voltage waveforms.
The gusts generated by the Dryden model are not white noise processes and therefore may be referred to as linear time invariant system with a white noise input that has unit variance, transfer function " G " ( " s " ), and output " y " ( " t " ).

The gusts generated by the von K�rm�n model are not a white noise process and therefore may be referred to as linear time invariant system with a white noise input that has unit variance, transfer function " G " ( " s " ), and output " y " ( " t " ).

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