Joint Design of Transmit Waveform and Receive Beamforming for LPI FDA-MIMO Radar

This letter considers the joint design of transmit waveform and receive beamforming for low probability of intercept (LPI) of multiple-input multiple-output with frequency diverse array radar in cluttered environments. The goal is to maximize the output signal-to-interference-plus-noise ratio while controlling the transmit power at the target region which enhances LPI capability, subject to peak-to-average power ratio and similarity constraints. To tackle the formulated non-convex optimization problem, an alternating optimization algorithm based on the alternating direction method of multipliers is proposed. Simulation results are provided to validate the effectiveness of the developed method in terms of the objective function values as well as the transmit and receive beampatterns.