FIELD: devices for suppressing noise arriving over side lobes of antenna directivity pattern.
SUBSTANCE: proposed noise suppressing device has series-connected complex interfacing unit, first multiplier, first sample adder, divider, second multiplier, and subtracting unit. Output signal of main antenna arrives at second input of subtracting unit. Device also has series-connected third multiplier and second sample adder whose output is connected to second input of divider; output signal of first auxiliary antenna arrives at second input of second multiplier. Output signal of complex interfacing unit arrives at input of third multiplier. Newly introduced in device is second auxiliary antenna, input of third multiplier being connected to output of first auxiliary antenna and outputs of complex interfacing unit and of first multiplier, to output of second auxiliary antenna. Subtracting unit output functions as device output.
EFFECT: enhanced noise suppression level.
1 cl, 2 dwg
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Authors
Dates
2007-04-10—Published
2005-06-23—Filed