METHOD OF ADAPTIVE SIGNAL PROCESSING IN MODULAR PHASE ANTENNA LATTICE Russian patent published in 2017 - IPC H01Q3/26 

FIELD: radio engineering, communication.

SUBSTANCE: receive signals from a known direction by an even number of modules arranged symmetrically with respect to the phase center of the modular phased array antenna with an amplitude and complex conjugate phase distribution that is symmetric with respect to the phase center of the opening. For each pair of symmetrically located modules, the sum and difference signals of the pairs of modules are formed. Summarize the total signals of the pairs of modules by the power, forming the initial sum signal of the modular phased array antenna. The covariance matrix of the difference signals of the module pairs and the covariance coefficient vector of the initial sum signal of the modular phased array antenna and the difference signals of the module pairs are found. Summarize the covariance matrix of the difference signals of pairs of modules with a diagonal matrix. The greater the weight of the diagonal, the smaller the values of the correcting phases. A matrix of coefficients is generated and the phase vector of the pairs of modules is determined by multiplying the inverse coefficient matrix by the covariance vector of the initial sum signal of the modular phased array antenna and the difference signals of the module pairs. Change, according to the detected phase of the correcting phases, the phases of the signals of the modules and sum the signals of the pairs of modules with the changed phases, forming the output signal of the modular phased array antenna.

EFFECT: possibility of adaptive signal processing in a modular phased array that realizes signal processing based on real arithmetic, while maintaining its speed.

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