MIMO radar method for phase control frequency diversity and polarization diversity

The invention provides a phase control frequency diversity and polarization diversity MIMO radar method. The method comprises the following steps: giving an MIMO radar comprising a transmitting array and a receiving array; reasonably dividing the whole emission array into a plurality of emission sub-arrays; setting the transmitting beam direction, transmitting polarization and transmitting signal frequency of each transmitting sub-array; all transmitting sub-arrays transmit signals outwards at the same time, and all transmitting sub-beams point to an expected target direction; each array element in the receiving array receives a horizontal polarization component and a vertical polarization component in the echo signal at the same time; performing matched filtering on each path of echo signal; performing receiving beam forming on the echo signal after matched filtering; according to the method, the system output SNR and SINR after receiving beam forming are improved, and the method can be used for a centralize