frequency weighting (Wf)
频率加权（Wf）：施加于加速度或振动信号上的滤波函数，用以反映人体对不同频率刺激敏感度的差异；Wf 专门用于晕动症预测。
English Definition
"A filter function applied to acceleration or vibration signals that accounts for human sensitivity varying across different frequencies; the Wf weighting is specifically tuned for motion sickness prediction."
用法说明 · 针对中文母语者
源自 ISO 2631 与 BS 6841 等国际人体振动标准；在设计评估中用于把原始物理测量值转化为与人因相关的感知量。
真实用例 · 2 条
"For every journey, the acceleration, a(t), was frequency-weighted using the Wf frequency weighting and band-limiting filters defined in British Standard 6841 (1) and International Standard 2631 (9)."
"The 'motion sickness dose value' (MSDV) and the frequency weighting (Wf) were developed for the prediction of motion sickness caused by vertical oscillation and may not be optimum for the prediction of motion sickness caused by horizontal acceleration."