Transmit Signal Design of MIMO Dual-Function Radar Communication With 1-bit DACs

In this paper, the transmit signal design of dual function radar communication (DFRC) with 1-bit digital-to-analog converters (DACs) is studied, where one multiple-antenna DFRC base station tracks and communicates with multiple users simultaneously. Concretely, the 1-bit transmit signal design is formulated as an optimization problem with weighted radar and communication mean-square errors as the objective function. To solve this problem efficiently, the alternating minimization framework is employed. Specifically, the alternating direction method of multipliers algorithm and the coordinate descent method algorithm are presented in the optimization of transmit signal. Finally, computer simulations are given to demonstrate the effectiveness of the proposed method.