METHOD OF FORMING CHANNEL SIGNALS WITH ZERO ENERGY IN A GIVEN FREQUENCY RANGE OF FINAL DURATION

In this article problem of constructing broadband channel signals is considered in terms of usage of an orthogonal basis in the form of eigenvectors of sub-band matrices that must have a priori predetermined properties. The increasing need for users to exchange information for different distances with a high quality of service, regardless of where they were located, led to the need to develop channel signals, the use of which in telecommunication systems would ensure high reliability of reception of transmitted information in conditions of various types of interference, including narrowband interference. In this study, to improve the noise immunity of telecommunication systems it is proposed to use as a carrier of information a new class of broadband signals based on the use of eigenvectors of subband matrixes with small eigenvalues in which the distribution of parts of their energies in the frequency domain can adaptively change. The use of such signals, as shown by the results of the computational experiments, makes it possible to significantly increase the noise immunity of telecommunication systems in the conditions of spectrum-focused interference resulting from various phenomena, including the technogenic conditions of modern industrial cities, compared with the use for this purpose of known classes of broadband signals.