METHOD FOR RADAR SURVEILLANCE OF SPACE (VERSIONS) Russian patent published in 2009 - IPC G01S13/00 

FIELD: physics, measurement.

SUBSTANCE: suggested technical solutions are related to the field of radiolocation and may be used in surveillance radiolocating stations (RLS) with needle beam. In method of radar surveillance of space zone based on radiation of i part of zone by wide beam that envelops n_i>1 of angular directions and reception of signals by partial channels with needle diagrams of antenna directivity, then wide beam radiates (i+1) part of zone comprising n_i+1>1 angular directions, if in i part of zone signal exceeding threshold level is not received, and if p≥1 from n_i; angular directions of signal exceeding threshold level is detected, only these p directions are surveyed, serially radiating each of them with beam width reduced n_i times; in method of radar surveillance of space zone based on radiation of i part of zone and reception of signals by wide beam, which envelopes n_i>1 angular directions, wide beam is used to radiate and receive signals in (i+1) part of zone, comprising n_i+1>1 angular directions, if in i part of zone signal exceeding threshold level was not received, and when signal exceeding threshold level is detected, RLS beam width is reduced, and sequential surveillance of angular directions of i part of zone is carried out; in process of surveillance of i part of zone wide beam is used to radiate m≥1 probing signals, and in process of sequential surveillance of n_i directions, simultaneously 1≤k<n_i directions are radiated with beam width reduced n_i/k times; if target was not detected in process of surveillance of i part of zone with reduced beam width, they change over to radiation and reception of signals by wide beam for (i+1) part of zone; in process of simultaneous radiation of 1<k<n_i directions and detection of signal exceeding threshold level, in j>1> out of n_i/k directions, these j directions are surveyed, with beam width reduced n/s times, simultaneously radiating 1≤s<j directions, etc, reaching the point when only one angular direction is radiated with beam width reduced n_i times; value of threshold level is established on the basis of calculation of permissible probability of erroneous change over to surveillance of these angular directions with beam width reduced n_i/k times, and number m/n_i - permissible probability of erroneous transition to surveillance of the subsequent angular directions by wide beam; in surveillance by wide beam narrow-band signal is used.

EFFECT: provision of possibility to survey zone of RLS space with needle beam at the rate of surveillance, when number of probing signals is less than number of angular directions.

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