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Adaptive OFDM Integrated Radar and Communications Waveform Design Based on Information Theory

机译:基于信息论的自适应OFDM集成雷达与通信波形设计

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摘要

To improve the effectiveness of limited spectral resources, an adaptive orthogonal frequency division multiplexing integrated radar and communications waveform design method is proposed. First, the conditional mutual information (MI) between the random target impulse response and the received signal, and the data information rate (DIR) of frequency selective fading channel are formulated. Then, with the constraint on the total power, the optimization problem, which simultaneously considers the conditional MI for radar and DIR for communications, is devised, and the analytic solution is derived. With low transmit power, the designed integrated waveform outperforms the fixed waveform (i.e., equal power allocation). Finally, several simulated experiments are provided to verify the effectiveness of the designed waveform.
机译:为了提高有限频谱资源的有效性,提出了一种自适应正交频分复用集成雷达与通信波形设计方法。首先,制定随机目标冲激响应与接收信号之间的条件互信息(MI),以及频率选择性衰落信道的数据信息速率(DIR)。然后,在总功率的约束下,设计了同时考虑雷达的条件MI和通信的DIR的优化问题,并得出了解析解。在低发射功率的情况下,设计的积分波形优于固定波形(即相等的功率分配)。最后,提供了几个模拟实验来验证设计波形的有效性。

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