Development of a device for the optimal reception of signals against the background of an additive three-component interference

Abstract

particularly unacceptable where a communication system is integrated into the overall system of a technological process safety system. The described situation occurs specifically during railroad transportation in the technological communication systems and subsystems that transfer signals from railroad automatics. As the saturation of industries, transport, and even households, with such integrated systems grows, solving the tasks on noise-resistant receival of information signals becomes increasingly relevant. Literature review and problem statementDecreasing the influence of multicomponent interference on the results of reception of information signals has attracted undiminished attention of specialists. Paper [1] reports

Synthesis of a device for anti-jamming reception of signals of tonal rail circuits on the background of additive five-component interference

“…It is shown that the statistically justified estimates of the parameters of the pseudo-signal are the estimates obtained by minimizing the isolated logarithms of the likelihood ratio of the signal and each of the structurally deterministic interference (ILLRN). These ILLRNs were introduced in [5]; they are the summands of both modifications of the objective function. The terms of the objective function not included in the ILLRN are calculated on the basis of the above estimates and make corrections to the values of both modifications of the objective functions.…”

“…Its presence is not a consequence of solving a single problem of synthesizing an optimal receiver. The combination of such a synthesis and taking into account structurally deterministic interference was demonstrated in [5]. It presents the results of the synthesis of a device for optimal signal reception against the background of an additive three-component interference.…”

“…Estimates of signal and noise parameters are based on the concept of "isolated logarithm of the likelihood ratio taken with a negative sign" introduced in [5]. Then, in formula (1), the first pair of terms is the ILLRN ( ) The rest of the terms make corrections to the values of the objective functions.…”

“…Then, in formula (1), the first pair of terms is the ILLRN ( ) The rest of the terms make corrections to the values of the objective functions. According to the considerations set forth in [5], when minimizing the objective function, one can be satisfied with the parameter estimates obtained by minimizing each of the ILLRN separately. Since the sets of parameters of different ILLRN do not overlap, the minimization of the objective function as a whole consists in minimization of each ILLRN separately.…”