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[course] 日常
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YDX-2147483647 committed Mar 10, 2024
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> :material-clock-edit-outline: 2024年3月5日。
此处的杂波并非天线接收到的总杂波,而是无法与目标分辨的杂波,即分辨单元内的杂波——方程由此引入了分辨率。

# 后备箱

- 区分 $\mathrm{B}$ 和 $\mathrm{dB}$,差的 deci-(from Latin _decimus_ tenth)表示十倍。
- 雷达是主动式传感器,往返双程导致天线面积、距离等因素的影响翻倍。
- 关于采样导致的歧义(ambiguity,通译模糊)问题,测距一般只考虑正距离,而测速考虑的速度范围一般正负对称。

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