Сomparative characteristics of noise immunity of the systems using n-dimensional multi-positional signals

DOI №______

Abstract

The problem of choosing the optimal multi-position signal for building effective digital channel management information is considered in the article. This problem can be solved by increasing the noise immunity at the expense of bandwidth and selection of the optimal signal constellation, which creates a digital transmission channel of control information. It is determined that the same way of receiving different signal constellations provide different noise immunity. This is due to the physical layout of boundary signals. The article is also considered the optimum stacking areas signals in three-dimensional space for eight, sixteen and 32 cubic positional signal amplitude phase modulation, and given their differences. The coefficients of the noise stability are shown and the curves of error probability with optimal reception in three-dimensional space above the multi-position signals are constructed.

Keywords: multiple signal, control information, signal constellation, a ratio of a noise stability.

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