论文标题
雷达和通信系统的共存设计
Coexistence Designs of Radar and Communication Systems in a Multi-path Scenario
论文作者
论文摘要
这项研究的重点是多路径环境中多输入多输出（MIMO）通信和共同存在的MIMO雷达系统之间的频谱共享。主要的挑战是抑制两个系统之间的相互干扰，同时结合每个系统中收到的有用的多路径组件。我们通过共同设计通信预码器，雷达传输波形并接收过滤器来应对这一挑战。具体而言，雷达接收器处的信噪比加上噪声比（SINR）受到雷达波形，通信速率和传输功率的约束而最大化。多路径传播使雷达sinr和通信率的表达复杂化，导致了非凸面问题。为了解决它，使用基于交替的最大化的亚最佳算法用于优化预编码器，雷达传输波形并迭代接收过滤器。提供仿真结果以证明拟议设计的有效性。
The focus of this study is on the spectrum sharing between multiple-input multiple-output (MIMO) communications and co-located MIMO radar systems in multi-path environments. The major challenge is to suppress the mutual interference between the two systems while combining the useful multi-path components received at each system. We tackle this challenge by jointly designing the communication precoder, radar transmit waveform and receive filter. Specifically, the signal-to-interference-plus-noise ratio (SINR) at the radar receiver is maximized subject to constraints on the radar waveform, communication rate and transmit power. The multi-path propagation complicates the expressions of the radar SINR and communication rate, leading to a non-convex problem. To solve it, a sub-optimal algorithm based on the alternating maximization is used to optimize the precoder, radar transmit waveform and receive filter iteratively. Simulation results are provided to demonstrate the effectiveness of the proposed design.
