基于峰均比约束的双功能雷达通信波形折中优化设计  

Dual-functional radar-communication waveform trade-off optimal design with peak average power ratio constraint

作　　者：侯跃峰 赵晓 刘嘉宁 周荣康 王文博 田峰[1] HOU Yuefeng;ZHAO Xiao;LIU Jianing;ZHOU Rongkang;WANG Wenbo;TIAN Feng(Key Lab of Broadband Wireless Communication and Sensor Network Technology,Ministry of Education,Nanjing University of Posts and Telecommunications,Nanjing 210003,China)

机构地区：[1]南京邮电大学宽带无线通信与传感网技术教育部重点实验室,江苏南京210003

出　　处：《物联网学报》2023年第2期109-117,共9页Chinese Journal on Internet of Things

基　　金：广东省促进经济高质量发展专项资金海洋经济发展项目(粤自然资合[2023]24号);国家自然科学基金资助项目(No.61671252,No.61772287);江苏省高等学校自然科学研究重大项目(No.18KJA510004)。

摘　　要：双功能雷达通信(DFRC,dual-function radar-communication)技术利用相同的硬件平台、频谱资源和发射波形同时实现雷达和通信功能,为实现通信感知一体化功能提供强有力的支撑。针对双功能雷达通信系统,研究了雷达和通信的波形折中优化设计,同时考虑在传输能耗和峰均比约束下,构建具有二次等式和不等式约束的非凸优化问题,并利用非线性等式约束交替方向乘子算法将非凸优化问题分解为3个子问题实现优化求解。仿真结果表明,优化设计的双功能雷达通信波形可逼近理想雷达波形,同时实现了雷达性能和通信性能之间的折中优化。Based on the same hardware platform,spectrum resources,and transmit waveforms,dual-function radar-communication(DFRC)can achieve radar and communication functions at the same time,which provides a strong support for realizing integrated sensing and communication(ISAC).Aiming at the dual-function radar communication system,radar and communication waveform trade off optimal design was studied,and a non-convex optimization problem was constructed with quadratic equality and inequality constraints under the constraints of transmission energy consumption and peak-to-average ratio(PAPR).The nonlinear equality constrained alternative direction method of multipliers was used to decompose the non-convex optimization problem into three sub-problems.The simulation results show that the optimized dual-function radar communication waveform can approach the ideal radar waveform and realize the optimal performance tradeoff between radar and communication.

关 键 词：双功能雷达通信 非凸优化 峰值平均功率比约束 折中设计 

分 类 号：TN919[电子电信—通信与信息系统]