METHOD AND DEVICE TO GENERATE SIGNALS OF QUADRATURE AMPLITUDE MANIPULATION Russian patent published in 2012 - IPC H04L7/02 

FIELD: radio engineering.

SUBSTANCE: in the method from a pre-generated sinusoidal signal a cophased and a quadrature components are formed, which manipulate four information bits, besides, phases of the cophased and quadrature components are changed by 180° at the values of accordingly the first and second information bits r₁=r₂=1, manipulation of the cophased and quadrature components by the third r₃ and fourth r₄ information bits is carried out on the basis of generation of four voltage levels for each component by multiplication of the cophased and quadrature components manipulated by information bits r₁ and r₂ by preset appropriate coefficients a, b and c, one level is selected for every component. After manipulation the cophased and quadrature components are summed up.

EFFECT: reduced value of a peak factor of generated signals with quadrature amplitude manipulation, which makes it possible to increase noise immunity when receiving signals.

4 cl, 3 dwg