V.G. Dmitriev, A.A. Konotop, N.V. Kosyakin, G.P. Pochanin, V.I. Sergeev, Z.N. Fedorova

Any impulse can be described as the result of mixing two (or more) fluctuations, that is, the multiplication of a certain carrying (high-frequency) fluctuation and low-frequency envelope. Additional modulation of the obtained impulse by low-frequency fluctuations can lead to an increase in the amplitude (strengthening) of this impulse. Thus, due to additional modulation it is possible to govern the characteristics (by amplitude, in particular) of the initial impulse, which, with each new modulation, is included in the composition of new wave packet as its high-frequency filling. During the modulation of initial impulse by the second modulating fluctuation as a result it is possible to obtain the work of the amplitudes of impulse and second modulating fluctuation, which leads to the possibility of strengthening the impulse due to an increase in the amplitude of new envelope. The same possibility is also typical for subsequent (the third, the fourth) modulations. If second modulation can be used for strengthening the modulated impulse, then third modulation can be already used both for strengthening and for destroying the impulse. On the basis of the fact that impulse is the result of multiplication of modulated and modulating fluctuations, it is possible to be destroyed by the inverse operation - the division of the resulting signal into the appropriate modulating fluctuation (or by multiplication to the inverse function, for example, to 1/cos = sec). It is possible to restore the already destroyed pulse analogously, after multiplying the components of the destroyed wave packet to the signal, described by the function, which reverses to that, with the help of which such wave packet was destroyed. Consequently, with the help of additional and excess modulations it is possible alternately to strengthen, to destroy and to restore initial impulses. Operations with the modulating fluctuations, in this case, can be described as periodic, regular action on the transformed (strengthened, destroyed or restored) impulse. The procedure of destruction and restoration of impulses shows that even impulses, which have large amplitude, can be destroyed. Even the strongly destroyed (due to the influence of the two excess modulations) impulses also can be restored. Depending on stated problems and complexity of the form of the transformed signal for the strengthening, the destruction or restoring of the impulses can be used different circuit- technical solutions, whose examples are shown in the article. The method of destruction (restoration) of the impulses is universal and is applicable to any impulses (including mechanical, acoustic). The results shown in the present work can be used both for strengthening of different impulses and for their transformation (destruction, restoration), including the interests of thunderstorm and lightning protection, and also in the process of developing the protection systems, which help to avoid the action of mechanical and acoustic (in such cases liquid) impulses, including tsunami.