S.A. Metelev – Dr.Sc.(Phys.-Math.), Associate Professor, Head of Department, JSC «SPC «Polyot» (N. Novgorod) E-mail: metelev55@mail.ru

The model of generating the signals and noise in VLF is proposed in the paper. Applying this model the potentials for signal adaptive polarization processing (APP) in communication channel with natural noise and intentional interference have been defined. It has been demonstrated that the 3-channel APP canceller provides the noise improvement factor by more than 30 dB in case of simultaneous impact of the atmospheric interference and jammer. Herewith the communication range is increased by some thousand kilometers and is determined by the receiver sensitivity In case the receiver inputs are the superposition to: 1) a Gaussian-distributed atmospheric noise from remote sources, and 2) a «spikey» power-Rayleigh-distributed atmospheric noise component from local sourse, and 3) a jammer activity, the degrees of freedom of the adaptive system are insufficient for full rejection of the interferences. However, even in this case the noise improvement factor provides increasing of the communication range up to some thousand kilometers if we use APP.

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