The article offers the use of a class of special signals for information security in telecommunication systems with code division of channels. By varying the parameters of the random number generator, the type of initial distribution laws and the law of transformation, it is possible to form an unlimited number of systems of pseudo-random sequences with specified properties. This approach is an improved method of forming an increased number of binary quasi-orthogonal systems of code sequences with the required statistical and correlation characteristics. The proposed method of formation of an increased number of binary quasi-orthogonal code sequence systems with the required statistical and correlation characteristics can be used to obtain expanding codes in satellite communication systems.