METHOD OF THE VIRTUAL PHASED ANTENNA ARRAY CREATING Russian patent published in 2018 - IPC H01Q3/26 H01Q21/00 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to radar ranging equipment and can be used in short-range radars. To obtain the virtual array, it is necessary that the transmitting antennas phase centers were shifted relative to each other in the azimuth plane by where N is the number of receiving channels, λ is the wavelength. Receiving antennas should be shifted relative to each other by Also, all receiving channels should be coherently digitized by the master oscillator clock cycle. Transmission antenna number emission operation is determined by the cyclogram shown in Fig. 1. When using 7 transmitting antennas, which are spaced apart relatively to each other by in this case the signal from the target phase shift in the outermost receiving antenna will be equal to which allows to synthesize the virtual phased array according to the Fourier distribution

where D_m – one receiving antenna directivity function, S_i is the digitized data complex values, d is the distance between the receiving antennas, k is the wave number, N is the number of synthesized sub-arrays on each receiving antenna.

EFFECT: technical result consists in increase in the radar equipment resolution by the angular coordinates.

1 cl, 2 dwg