Unverified50% confidenceFactExact time
毫米波雷达通过发射高频段无线电波,捕捉反射信号的多普勒频移来判断运动方向与速度,精度达毫米级,且不受光线干扰
1
Sources
50%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
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