一种OFDM雷达通信一体化的距离超分辨方法

针对雷达通信一体化中的共享信号设计问题，设计了一种脉冲体制正交频分复用（OFDM）波形，并提出了一种基于OFDM共享信号的雷达通信一体化距离超分辨方法。每一脉冲为通信中的一帧，实现通信信息调制，并讨论了利用雷达副瓣进行通信信息传输的可行性。在雷达相干处理时间内，利用脉间通信调制信息的随机性实现距离解模糊，然后在通信信息补偿后构建距离的稀疏重构模型，并利用实现距离的超分辨估计。理论分析和仿真实验说明，所提方法能有效提高距离分辨力，并实现Mbit/s的数据通信。

A range super-resolution method for integration of OFDM radar and communication

A new range super-resolution method is proposed for the integration of orthogonal frequency division multiplexing(OFDM) radar and communication. And an OFDM pulse pattern is designed to achieve long distance ranging. In the transmitted pattern,the communication function is realized within the pulse,and the possibility of using radar beam side-lobes to transmit communication signal is discussed. During the coherent processing interval,the randomness of the communication modulated information is applied to solve range ambiguity,then the range sparse reconstruction model is formed after communication information is compensated,and finally,the L1-SVD method is applied to obtain the super-resolution estimation of ranges. Theoretical analysis and simulation results indicate that the proposed method can enhance the range resolution and guarantee the communication function.