PROCESS OF FORMATION OF QUADRATURE CHANNELS AND DEVICE FOR ITS REALIZATION ( VERSIONS ) Russian patent published in 2001 - IPC

FIELD: radio engineering, communication systems, radiolocation. SUBSTANCE: process of formation of quadrature channels is characterized by transfer of spectrum of received signal to required frequency, by discretization and quantization of input signal, by calculation of filtration coefficients, by transfer of spectrum to zero frequency. Device for formation of quadrature channels has analog filter, analog-to-digital converter, commutation unit and band-pass complex filter. In accordance with another version device for formation of quadrature channels has band-pass analog filter, analog-to-digital converter, complex decimator, band-pass complex filter. EFFECT: decreased requirements for analog filtration with maintenance of discretization frequency, reduced number of hardware components. 10 cl, 8 dwg