Patent RU-2439606-C1 (RU)
Title: Radar space scanning method (versions)
Inventor: BELJAEV BORIS GRIGOR EVICH
IPC: G01S13/04
Filed: 2010-06-25
Granted: 2012-01-10
Abstract: FIELD: physics. 
     SUBSTANCE: in the method for radar scanning of space, based on making a decision on target detection if oscillation higher than the detection threshold is detected, deciding on possible presence of a target if the detected oscillation is lower than the detection threshold, but higher than an additional threshold, when deciding on possible presence of a target, its effective scattering area (ESA) is estimated, assuming that the detected oscillation is a signal reflected from the target with ESA which is still not sufficient for its detection, the moment in time t j  at which the assumed j-th target can reach the boundary of its detection is calculated, and part of the space is examined at moments in time at which the assumed targets might be located in that part, the probability of detection of which is not less than a given value, to calculate t j , the Doppler velocity value of the assumed j-th target is taken or the possible velocity of the assumed j-th target reached at the measured height is estimated, based on the possible type of the j-th target determined, for example, from the value of the ESA; in the method for radar scanning of space, based on exchanging information between a radar station on results of scanning areas in space, the information contains data on the effective scattering area (ESA) of the target, which is estimated under the condition that if during examination of part of space, oscillation is detected below the detection threshold, but higher than an additional threshold, assuming that the detected oscillation is a signal reflected from a target with ESA which is still not sufficient for its detection, as well as data on the ESA of the detected target and taking into account information obtained from other radar stations, the moment in time t j  is calculated, in which the j-th target which is assumed or detected by other radar stations can reach the boundary of its detection, and part of space is examined at moments in time in which the assumed targets might be located in that part, the probability of detection of which is not less than a given value, to calculate t j , the Doppler velocity of the assumed j-th target is taken or the possible velocity of the assumed j-th target reached at the measured height is estimated, based on the possible type of the j-th target, determined, for example, from the value of the ESA; in the method for radar scanning of space, based on exchanging information between radar stations through a data bank, available for several radar stations, on results of scanning areas in space, the information contains data on the effective scattering area (ESA) of the target, which is estimated under the condition that if during examination of part of space, oscillation is detected below the detection threshold, but higher than an additional threshold, assuming that the detected oscillation is a signal reflected from a target with ESA which is still not sufficient for its detection, as well as data on the ESA of the detected target and taking into account information obtained from the data bank, the moment in time t j  is calculated, in which the j-th target which is assumed or detected by other radar stations can reach the boundary of its detection, and part of space is examined at moments in time in which the assumed targets might be located in that part, the probability of detection of which is not less than a given value, to calculate t j , the Doppler velocity of the assumed j-th target is taken or the possible velocity of the assumed j-th target reached at the measured height is estimated, based on the possible type of the j-th target, determined, for example, from the value of the ESA. 
     EFFECT: more rational use of energy resources when scanning space. 
     9 cl