Noise immunity of the invariant system of information transmission based on coherent reception by existence of weak correlation communications

The invariant system of information processing based on obtaining of the rectangular envelope using a synchronous detector is considered. The noise indexes are calculated. It is supported that the closest nearest reading of the rectangular are interfered with the adaptive noise whose readings are weakly correlated with each other. The quantitative estimation of the operation of such kind system is compared with the quantitative indexes of the known invariant system by non-correlativeness of the noise readings.