METHOD OF PROBING SPACE WITH COHERENT SIGNALS Russian patent published in 2013 - IPC G01S13/02 

FIELD: radio engineering, communication.

SUBSTANCE: method of probing space with coherent signals emitted by N elements of a transmitting array is based on determining the required amplitudes A_n and phases φ_n of the emitted signals in each m-th element of the transmitting array (n=1,…,N) to provide coherent summation of signals in the given region in space, coherent reception of reflected signals with each m-th receiver with measurement of amplitude and phase. The novelty lies in that probing is carried out with signals emitted by separate elements of the transmitting array with an arbitrary amplitude A_0n and phase φ_0n and the signal S_m in each m-th receiver, which corresponds to coherent summation of emitted signals in the probed region of space, is calculated using the formula where A_0nm, φ_0nm are the measured amplitude and phase in the m-th receiver when probing space with a signal of the n-th element of the transmitting array with selected amplitude A_0n and phase φ_0n.

EFFECT: high stealthiness of probing space with coherent signals.

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