By the limit of transmitter power and waveform energy,modern radar generally chooses constant modulus waveform to achieve the goal that maximum use of transmission power.We address the optimization problem of constant modular orthogonal waveform design for Phased-multiple input multiple output(MIMO)radar,and a new waveform optimal design framework for Phase-MIMO radar based on the matrix spectral approximation is presented.First,the number of sub-array can be obtained by the requirements of signal to noise ...