Method for creating at least one virtual reception channel by the use of a radar antenna and radar system

摘要

Method for creating a virtual reception channel in a radar system (20) comprising an antenna having two physical reception channels (1r, 2r) spaced by a distance d in a direction x, two transmission channels (1e, 2e) spaced by the same distance d in the same direction x and processing means (26), the method comprising: dynamic selection of two different waveforms, orthogonal to each other; generating a radar pulse (41, 42) of the same central wavelength in each transmission channel, each of the transmission channels transmitting one of said two different waveforms; the acquisition by the reception channels of the echoes originating from the pulses emitted by the emission channels and reflected by at least one target (4); and compressing the pulses by suitable filtering of the echoes acquired by each physical reception channel by realizing their correlations with each of the waveforms generated in the transmission channels and radar system (31) for the implementation of such a process.