Design of an FMCW radar baseband signal processing system for automotive application.
Design of an FMCW radar baseband signal processing system for automotive application.
复制标题
用于汽车应用的FMCW雷达基带信号处理系统的设计。
DOI：
10.1186/s40064-015-1583-5
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Lee TS
中科院分区：
文献类型：
--
作者：
Lin JJ;Li YP;Hsu WC;Lee TS
针对典型的FMCW汽车雷达系统，提出了一种新的基带信号处理体系结构和算法设计，以克服多目标检测场景中的幽灵目标和重叠问题。为了在不增加射频前端负载的情况下满足短的测量时间约束，采用了不同斜率的三段波形。通过引入一种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具有较高的准确性和可靠性，而且需要较少的配对时间和计算量。所提出的基带信号处理架构和算法在性能和复杂度上取得了很好的平衡，适合在实际的汽车雷达系统中实现。实测结果表明，所提出的汽车雷达信号处理系统在实际应用场景中具有良好的性能。
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.