FIELD: physics, navigation.
SUBSTANCE: invention relates to radar, particularly to an active phased antenna array. The active phased antenna array comprises first and second coherent oscillators, a central processing unit, first and second power dividers, N receiving-transmitting units, random-access memory, a programmable logic integrated circuit, non-volatile rewritable memory, a digital-to-analogue converter, an analogue-to-digital converter, a vector modulator, a quadrature demodulator, first and second band-pass filters, a power amplifier, a low-noise amplifier, a circulator and a protective device. The active phased antenna array is characterised by that it further includes a third coherent oscillator, a third power divider, a frequency divider, a directional coupler, a controlled attenuator, first and second mixers, a power controller, wherein the active phased antenna array comprises n+1 receiving-transmitting units.
EFFECT: high noise-immunity of a radar station with respect to image interference and low probability of false targets.
2 cl, 1 dwg
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Authors
Dates
2014-10-20—Published
2012-11-14—Filed