Nonlinear array antenna radar and method thereof

摘要

The present disclosure relates to a array radar system. More particularly, to a technique for determining a ghost target in a radar equipped with a nonlinear array antenna. There is provided a radar apparatus including a receiver configured to receive real non-linear array signals of N channels through N channel non-linear array antennas arranged at mutually different intervals, a signal generator configured to generate virtual non-linear array signals of M channels capable of spacing equal intervals between the adjacent channels together with the N channels based on N real channel non-linear array signals, and configured to generate virtual linear array signals of M+N channels including the real non-linear array signals of N channels and the virtual non-linear array signals of M channels M channels, and a determiner configured to determine a ghost target based on the virtual linear array signals of M+N channels.