In this paper, an orthogonal frequency-division multiplexing (OFDM) waveform radar sensing approach is demonstrated based on field measurements at C-band. We demonstrate a concept that is based on the exploitation of typical wireless communication transmissions to perform passive, distributed radar sensing. Our concept is based on an OFDM radar that operates in the modulation symbol domain and can be well integrated into existing OFDM receivers. The measurement setup and the signal processing steps for the OFDM radar are described. The results show that the passive, distributed radar sensing approach can be used to detect and localize moving cars and even pedestrians in automotive intersection scenarios.

中文翻译：

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用于汽车场景中分布式雷达传感的 OFDM 波形

在本文中，基于 C 波段的现场测量演示了一种正交频分复用 (OFDM) 波形雷达传感方法。我们展示了一个基于利用典型无线通信传输来执行无源分布式雷达传感的概念。我们的概念基于在调制符号域中运行的 OFDM 雷达，并且可以很好地集成到现有的 OFDM 接收器中。描述了 OFDM 雷达的测量设置和信号处理步骤。结果表明，被动分布式雷达传感方法可用于检测和定位汽车交叉路口场景中的移动汽车甚至行人。