FIELD: satellite communication systems. SUBSTANCE: for short information units use is made of non-recursive systematic convolution codes with addition of bits to the end, for longer information units use is made of recursive systematic convolution codes. The given methods for encoding with parallel integration are used in combination with modulation with expansion of the spectrum due to which the communication system with terminals having a very small aperture satisfies the FCC limitations to the common spectral density of the power of transmitted signals and the interference between the adjacent space vehicles is reduced. EFFECT: the satellite communication system with terminals having a very small aperture uses encoding and outgoing lines, or in both of them. 15 cl, 4 dwg, 2 tbl
