FIELD: radio engineering, communication.
SUBSTANCE: in radar stations (radar stations) to reduce the possible impact of passive interference caused by magnetically-oriented inhomogeneities of the electron concentration of the ionosphere, a view angle is calculated for each target in the range of heights of the possible existence of ionospheric irregularities and located in the region of small angular angles to |ψ| = 10, accumulation of grouped by certain rules is carried out, after the accumulation is completed, the height characteristics of the formed group of marks are estimated and the rate of change in the height of the geometric center of the group of marks is estimated; N>K group marks, the estimation of the angle of the ith mark is less than the threshold value of the angle, and the height of the ith mark lies within the minimum and maximum heights of the region where the ionospheric irregularities arise, while the value of K is obtained experimentally, the thickness of the obtained layer of the group of marks is further evaluated, which should be less than the threshold value calculated taking into account the height measurement error, and the rate of change in the height of the geometric center of the group of marks, the speed should be less than the rate of change in the altitude of possible targets in the range of heights of the effects of passive interference caused by magnetically-oriented inhomogeneities of the ionospheric electron concentration, The comparison conditions are calculated for the range boundaries of the interference by range, azimuth, altitude and the threshold value by the power of the marks, the marks falling In this area are not processed (blanked out).
EFFECT: reduction of blanck-out area of radar field of view under the impact of clutter caused by magnetically oriented inhomogeneities of the electron density of the ionosphere and therefore decrease the probability of missing the target signal.
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