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Method for setting a detection threshold for a received signal of a frequency-modulated continuous wave radar sensor of a motor vehicle on the basis of the noise level, radar sensor and motor vehicle
Method for setting a detection threshold for a received signal of a frequency-modulated continuous wave radar sensor of a motor vehicle on the basis of the noise level, radar sensor and motor vehicle
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机译:基于噪声水平设置机动车的调频连续波雷达传感器的接收信号的检测阈值的方法,雷达传感器和机动车
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摘要
A method for setting a detection threshold for a received signal of a frequency-modulated continuous-wave radar sensor of a motor vehicle is disclosed. In successive measuring cycles of the radar sensor in each case a radar signal is emitted into a capture zone of the radar sensor and a received signal is received, in each measuring cycle a frequency spectrum relating to the respective received signal is determined, wherein individual frequency bins of the frequency spectrum each correspond to a signal level in a range-resolution cell, and the detection threshold is set individually in each case for a subset consisting of at least one frequency bin, and in order to set the detection threshold, a noise level is determined from frequency bins of temporally preceding measuring cycles and/or from frequency bins of adjacent Doppler-resolution cells of the frequency spectrum.
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