Didkowsky R. Autocorrelation multiple access communication systems utilizing noise signals

This work is devoted to the development of construction and operation principles multiple access communication systems utilizing noise signals. Methods for the performance evaluation of communication systems with noise carrier are obtained. These methods allows to determine the differential noise shift keying (DNSK) as the optimal method of entering information into noise signal. The measures to reduce the bit error probability in DNSK system, increase data rate and providing high signal structure secrecy are proposed. Collection of multiple positions and multiple access modulation schemes based on DNSK, and symbol timing synchronization methods are proposed. Methods of creating orthogonal ensembles of discrete-time noise signals based on mathematical apparatus of Clifford algebra are obtained. These methods allow to propose the effectively methods for signal forming and signal processing in multiple access communication systems with noise carrier. The performance of the proposed methods were confirmed during the development of practical radio-frequency identification system for access control and in the laboratory experimental studies.