Volkov S. Synthesis and analysis of signatures of signals for radio systems with code division multiplexing

Objects under study - signal generation devices for the systems based on WCDMA technology. Subject of study - indices and related quality characteristics of signature generation system operation in mobile radio communication systems. Objective of study - development of methods and mathematical foundations of generation and synthesis of signal signatures for use in radio and telecommunication systems. Analysis was made as to the construction of wideband signals; the estimation is given of the effect of correlation properties of the signal on asynchronous mode of transmission noise immunity; methods for the development of large ensembles of signals are methodized. New ensembles of signatures for WCDM-systems are synthesized and an optimization of signature ensembles by the minimum distance criterion is made. The procedure is developed for the construction of binary ensemble of signatures located at the Welch bound. A new signature ensemble with the time shift for the asynchronous code division aresynthesized.. Recommendations are given as to the correlation analysis of synthesized wideband signals when the violation of assumptions about the normality of laws on auto-correlated and cross-correlated functions distribution. The study of statistics distribution is made for the case of normal law and statistic distribution under the laws different from normal ones. On the basis of obtained results the models of correlation analysis statistic distribution under non-normal laws are specified. The field of use is telecommunication systems.