Constant Modulus Waveform Design for Wideband MIMO Radar Beampattern

We consider the wideband Multiple-Input Multiple-Output (MIMO) radar waveform design to concentrate the radiation power in a spatial region of interest as well as achieve prescribed space-frequency nulling to allow for spectrum cohabitation with other users. Besides, we enforce the constant modulus restriction on the probing waveform to ensure the radio frequency amplifier to work close to the saturation mode. The resulting design is a non-convex optimization problem then efficiently solved via a fast iterative algorithm sharing a polynomial computational complexity and ensuring that the objective value monotonically decreases and converges to a finite value. Numerical results are provided to assess the performance of the proposed algorithm.