NC-OFDM雷达通信一体化设计  

Design of radar communication based on NC-OFDM

作　　者：朵琳[1] 刘毅 DUO Lin;LIU Yi(Faculty of Information Engineering and Automation,Kunming University of Science and Technology,Kunming 650504,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650504

出　　处：《陕西理工大学学报（自然科学版）》2024年第1期56-64,共9页Journal of Shaanxi University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(61962032)。

摘　　要：雷达通信一体化有利于提高设备硬件资源利用率和频谱利用率,已成为近年来的研究热点。针对目前频谱资源稀缺的情况,结合认知无线电的概念,提出了基于非连续正交频分复用(NC-OFDM)的雷达通信一体化设计,对NC-OFDM雷达通信一体化信号测量目标特征进行了距离及速度的估计,并对基于NC-OFDM雷达通信一体化信号模糊函数、雷达成像的距离分辨率和方位分辨率、自相关性及误码率进行了分析,同时,选取互信息作为指标,利用优化算法进行波形设计。仿真结果表明,NC-OFDM雷达通信一体化信号具有较好的雷达探测性能和更为优良的无线通信性能。Radar communication integration has become a research hotspot in recent years because it is conducive to improving the utilization rate of equipment hardware resources and spectrum utilization.In view of the current scarcity of spectrum resources and combined with cognitive radio concept,this paper proposes an integrated design of radar and communication based on non-contiguous orthogonal frequency division multiplexing(NC-OFDM)and estimates the distance and speed of NC-OFDM radar and communication integrated signal measurement target characteristics.The ambiguity function of radar communication integrated signal based on NC-OFDM,the range resolution and azimuth resolution of radar imaging,autocorrelation and bit error rate are analyzed.At the same time,mutual information is selected as the index,and the waveform design is carried out by using the main optimization algorithm.The simulation results show that the NC-OFDM radar communication integrated signal has better radar detection performance and better wireless communication performance.

关 键 词：雷达通信一体化 认知无线电 非连续正交频分复用 雷达探测 无线通信 

分 类 号：TN957.51[电子电信—信号与信息处理]