FIELD: communication systems.
SUBSTANCE: coder encodes series of information bits at given encoding speed and outputs encoded symbols. Controller control coder so that when length of frame of series of information bits is first length, coder outputs encoded symbols, and when length of frame of series of information bits is second length, coder outputs partial symbols from encoded symbols, while second length is less than first length.
EFFECT: higher precision.
3 cl, 10 dwg, 2 tbl
