Industrial Automatic Control Systems and Controllers Annotation << Back Algebraically Related Sequences in Direct Spread Spectrum Systems A.N. Rudnev The application of algebraically related sequences in a direct spectrum spreading communication system is proposed. The structural-temporal properties of the sequences allow one to create an incoherent communication system with direct spreading of the spectrum with noise immunity characteristics invariant to arbitrary frequency-phase disturbances in the communication channel. The block diagrams of the signal modulator and demodulator of the proposed communication system are presented. Keywords: direct spectrum broadening; algebraically related sequences; ordered FM-4; systematic separation of sequences; PSP. DOI: 10.25791/asu.10.2021.1317 Pp. 34-37.