METHOD FOR MEASURING POLARIZATION CHARACTERISTICS OF TARGETS AND DEVICE WHICH IMPLEMENTS SAID METHOD

FIELD: radio ranging. SUBSTANCE: method uses four measuring cycles and involves emission of vertical polarization signal to target, measuring voltage of signal which is reflected by target and is received with same polarization, emission of horizontal polarization signal to target, measuring voltage of signal which is reflected by target and is received with same polarization, emission of linear polarization signal, which polarization plane is turned by 45 degrees with respect to vertical, measuring voltage of signal which is reflected by target and is received with orthogonal polarization, emission of round polarization signal to target, measuring voltage of signal which is reflected by target and is received with same polarization. When fourth cycle is finished, measured amplitude values of voltage of received signals are used for calculation of such polarization characteristics of target as shape electric factor ρ, target phase shift vand target orientation angle with respect to polarization basis α. Corresponding device has transmitter, antenna switch, rotating section of round waveguide, in which phase quarter-wave plate is mounted, Faraday shifter, mirror antenna, receiver, four sources of reference voltage, commutator of reference voltage levels, clock oscillator, dividing circuit, final-control mechanism for rotation of section of round waveguide, detector of angular moments of position of phase plate, register which stores angle code, matching circuit, analog-to-digital converter, decoder for choice of memory units, three subtraction units, unit which calculates polarization characteristics r, Φ, α and three indicators. EFFECT: increased precision, minimal number of measuring cycles. Изобретение относится к радиолокации и может быть использовано для измерения поляризационных характеристик радиолокационных целей. Способ измерения поляризационных характеристик радиолокационных целей использует четыре цикла измерений и заключается в том, что цель облучают сигналом вертикальной поляризации, измеряют напряжение отраженного целью сигнала, принятого на той же поляризации, цель облучают сигналом горизонтальной поляризации, измеряют напряжение отраженного целью сигнала, принятого на той же поляризации, цель облучают сигналом линейной поляризации с плоскостью поляризации, повернутой на угол 45относительно вертикали, измеряют напряжение отраженного целью сигнала, принятого на ортогональной поляризации, цель облучают сигналом круговой поляризации, измеряют на