This study investigates the feasibility of pilot-based detection for passive coherent location (PCL) radars exploiting digital video broadcasting-terrestrial (DVB-T) signals. The DVB-T signal is formed by two parts: a data signal and a pilot signal. The parameters of the pilot signal are known thanks to the DVB-T standards that permit the generation (at the receiver) of the pilot signal. The pilot recovery technique, based on the known DVB-T standard, is utilised in DVB-T based PCL systems to reduce the number of the reception channels by considering a locally generated pilot signal as a reference signal. Consequently, no reference channel is required, which reduces the cost and the complexity of the resulting PCL system. In this work, the authors propose a signal processing method to achieve this goal. They consider theoretical analysis, simulations and real-data results to validate the feasibility of such a system.

中文翻译：

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DVB-T无源相干定位雷达的基于飞行员的检测

本研究调查了利用地面数字视频广播（DVB-T）信号对无源相干定位（PCL）雷达进行基于飞行员的检测的可行性。DVB-T信号由两部分组成：数据信号和导频信号。借助DVB-T标准，已知了导频信号的参数，该标准允许在接收器处生成导频​​信号。基于已知的DVB-T标准的导频恢复技术被用于基于DVB-T的PCL系统中，通过将本地生成的导频信号视为参考信号来减少接收信道的数量。因此，不需要参考通道，这降低了所得PCL系统的成本和复杂性。在这项工作中，作者提出了一种信号处理方法来实现这一目标。他们考虑理论分析，