FIELD: radio engineering.
SUBSTANCE: signal processing method consists in target detection at double moving target indication with wobbulation of repetition period, involves the change of frequency and phase of signal reflected from the target relative to frequency and phase of signal of passive interference. Signal detection device includes two channels, each of which consists of in-series connected phase detector, analogue-to-digital convertor, two memory units - digital delay circuits. To the device there introduced are six subtracting units, six adder units, the first, the second and the third modulus computing units, the fifth and the sixth subtracting units; integrator, the fifth and the sixth adder units, decoder, the first, the second and the third multiplier; the first, the second, the third and the fourth comparison circuit, "2AND-NOT" logic element, AND logic element. The above devices are connected to each other in a certain way.
EFFECT: excluding penetration of information on passive interference to the display and improving observability of wanted signals, and reducing structural elements.
2 cl, 1 dwg
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Authors
Dates
2011-01-20—Published
2009-04-23—Filed