Анализ кодовых последовательностей, применяемых в широкополосных системах связи

Abstract

The paper discusses the correlation properties of pseudo-random sequences (PRS) used to form broadband signals in code-division coupled communication systems. The most frequently used pseudorandom sequences are considered: M - sequences, Gold codes, Walsh sequences. A comparative analysis of the correlation properties of the PRS was done in the Matlab. It is shown that orthogonal Walsh sequences have unsatisfactory correlation properties. The use of derivative signal systems - a combination of Gold and Walsh codes - makes it possible to obtain signals with the required correlation properties for communication systems. Directions for further research have been determined.