Синтез нелинейного приемника сигналов АЛСН в условиях действия аддитивной двухкомпонентной помехи

Abstract

RU: Проведен синтез алгоритма и аппаратной структуры приемника, работающего в условиях действия аддитивной двухкомпонентной помехи. Показано, что данный приемник должен осуществлять формирование некоторых двух величин, названных взвешенной корреляционной и взвешенной энергетической суммами.

EN: The introduction of high speed traffic on railway transport stipulates for the necessity to solve the task of the improvement of the existing systems of automatic locomotive signaling which are considerably subjected to the influence of electromagnetic interferences of different nature As a rule these interferences are multicomponent and their components are statistically independent. The aim of the given work is the synthesis of the algorithm and hardware-based structure of the receiver, working in the conditions of additive two-component interference. It has been shown that the given receiver must form some two magnitudes called weighted correlated and weighted energy sums. The summation is done with weighting coefficients, nonlinearly depending on readout value of signal voltage coming to processing. The structure of the corresponding receiver is four-channel with two inertialess nonlinear converters at common input. The synthesized device ensures optimal reception of signals on the background of two-component interferences with a wide class of probability density functions of instantaneous values of their voltages.