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Design of an FMCW radar baseband signal processing system for automotive application

机译:汽车应用FMCW雷达基带信号处理系统的设计

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摘要

For a typical FMCW automotive radar system, a new design of baseband signal processing architecture and algorithms is proposed to overcome the ghost targets and overlapping problems in the multi-target detection scenario. To satisfy the short measurement time constraint without increasing the RF front-end loading, a three-segment waveform with different slopes is utilized. By introducing a new pairing mechanism and a spatial filter design algorithm, the proposed detection architecture not only provides high accuracy and reliability, but also requires low pairing time and computational loading. This proposed baseband signal processing architecture and algorithms balance the performance and complexity, and are suitable to be implemented in a real automotive radar system. Field measurement results demonstrate that the proposed automotive radar signal processing system can perform well in a realistic application scenario.
机译:对于典型的FMCW汽车雷达系统,提出了一种新的基带信号处理架构和算法设计,以克服多目标检测场景中的幻影目标和重叠问题。为了在不增加RF前端负载的情况下满足较短的测量时间约束,使用了具有不同斜率的三段波形。通过引入新的配对机制和空间滤波器设计算法,所提出的检测架构不仅提供了高精度和可靠性,而且还需要较短的配对时间和计算量。提出的基带信号处理体系结构和算法在性能和复杂性之间取得了平衡,适合在实际的汽车雷达系统中实现。现场测量结果表明,所提出的汽车雷达信号处理系统在现实的应用场景中可以很好地运行。

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