An unbounded space-invariant but time-varying medium conserves the wave numberkof the wave but alters the frequency of the wave. Thus a switched medium acts like a frequency transformer, the frequencies of the newly created waves (output waves) are easily computed. The amplitudes of the output waves depend on the rise timeTrof the profiles of the parameters of the switched medium.
No takes yet. Share an insight, caveat, or question.
Kalluri et al. (2009) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: