METHOD FOR CONVERTING ANALOG SIGNAL TO DIGITAL QUADRATURE CODE AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2017 - IPC G01S7/288 H03M1/12 

FIELD: physics.

SUBSTANCE: method for conversting the analog signal at the intermediate frequency (IF) down to the digital quadrature code, is characterized in that the sampling frequency is set equal to the quadruple signal frequency after dividing the original frequency by the stroboscopic coefficient. The device, implementing the method, includes an analog-to-digital converter (ADC), a digital oscillator with digital control (DODC), two multipliers (MUL), a cycle delay line (CDL), two adders (ADD) and a subtractor (SUB).

EFFECT: reducing the sampling frequency against the processed signal frequency at the IF by the stroboscopic effect, increasing the identity of the quadrature components by the linear approximation of the discrete sampling amplitudes.

4 cl, 8 dwg