FIELD: radiolocation. SUBSTANCE: device can be employed in radars for suppression of side lobes of antenna radiation pattern and for optimization of its parameters in process of space observation and tracking of objects. Technical result of proposed invention lies in design of device securing exclusion of false detection of object because of effect of side lobes of antenna radiation pattern and in rectification of losses caused by deviation of amplitude distribution of field in antenna from uniform field. This technical result is achieved thanks to change of structure of antenna outputs and to insertion of additional unit. Device for spatial processing of signal includes antenna with two outputs, unit comparing levels of signals and decision making whose output is output of device. First and second outputs of antenna are outputs corresponding to amplitude distributions of filed in its aperture with weight functions f1(x) and f2(x). Device is supplemented with unit forming n resulting antenna radiation patterns, every n output is connected to corresponding input of unit comparing levels of signals and decision making and outputs of unit are connected to outputs of antenna. Antenna includes N radiators, N control modules, N power dividers with count-down ratio determined by weighting function of amplitude distribution of field in antenna aperture f1(x) and first signal adder. Inputs of control modules are connected to radiators and its outputs are coupled to inputs of proper power dividers which first outputs are connected to corresponding inputs of first signal adder which output is first output of antenna corresponding to amplitude distribution with weighting function f1(x). Device is inserted with second signal adder, each input of the latter is connected to second output of corresponding power divider, output of second signal adder is second output of antenna corresponding to amplitude distribution with weighting function f2(x) = 1-f1(x). EFFECT: exclusion of false detection of object. 4 cl, 6 dwg
