In this work we consider a multiple-input multiple-output (MIMO) dual-function radar-communication (DFRC) system that employs an orthogonal frequency division multiplexing (OFDM) and a differential phase shift keying (DPSK) modulation, and study the design of the radiated waveforms and of the receive filters employed by the radar and the users. The approach is communication-centric, in the sense that a radar-oriented objective is optimized under constraints on the average transmit power, the power leakage towards specific directions, and the error rate of each user, thus safeguarding the communication quality of service (QoS). We adopt a unified design approach allowing a broad family of radar objectives, including both estimation- and detection-oriented merit functions. We devise a suboptimal solution based on alternating optimization of the involved variables, a convex restriction of the feasible search set, and minorization-maximization, offering a single algorithm for all of the radar merit functions in the considered family. Finally, the performance is inspected through numerical examples.
翻译:在这项工作中,我们考虑采用一个多投入多输出(MIMO)双功能雷达通信(DFRC)系统,该系统采用正方位频率分多路和不同阶段转换键调制(DPSK),研究辐射波形的设计以及雷达和用户使用的接收过滤器的设计。这种方法以通信为中心,即雷达导向的目标在平均传输力、向特定方向的能量渗漏和每个用户的错误率的限制下得到优化,从而保障了通信服务质量。我们采用了统一的设计方法,允许一系列广泛的雷达目标,包括估算和探测导向的功绩功能。我们设计了一个亚最佳的解决方案,其基础是相关变量的交替优化、对可行的搜索集的连接限制以及细化-氧化,为所考虑的大家庭中的所有雷达功绩功能提供单一的算法。最后,通过数字实例对绩效进行检查。