汽车雷达探头必须解决干扰问题

11：被测雷达探头测得的功率谱

总结

汽车雷达支持追求额外的驾驶舒适性、安全性甚至自动驾驶的趋势。在街道上穿梭的汽车雷达探头数量正在迅速增加，并将在未来几年进一步增长。因此，在24 GHz、77 GHz和79 GHz频带中分配的频谱要由不同类型的探头和信号共享。作为保证安全性的关键元件，雷达探头需要克服相互干扰，提供信号分集和干扰抑制技术，以便测量、检测、分辨和分类雷达回波信号，即使在高密度占用的频谱中。例如，现在有针对导航雷达的关于干扰测试和抑制的规范和标准，但对于汽车雷达还没有要求。

为了满足这些需求，本文介绍了最先进的下一代汽车雷达的理论背景和干扰对其造成的影响。对于验证任意射频环境中的干扰抑制技术，提出了测试和测量的可能性。使用最先进的商用77 GHz雷达探头验证了干扰的影响。这些测试装置应该可以帮助研究人员和开发人员，按照技术规范，即使在恶劣的射频环境下也能确保他们雷达的功能。

参考文献

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