1) Frequency-dominant
频率占优
2) frequecny capture
频率占据
3) occupancy ratio of spectrum
频带占有率
4) frequency optimization
频率优化
1.
The paper confirms sampling frequency optimization of total amount monitoring of pollutant, adopting spot sampling, analysis of discharge curve and research of sampling frequency optimization with 21 typical wastewater sources.
通过对21家有代表性的废水污染源进行现场采样、排放曲线分析、采样频率优化的研究,确定总量监测中采样频率优化结果,为污染源总量控制监测提供技术指导。
2.
The second order sensitivity for evolutionary structural frequency optimization reflects the change of element s sensitivity value due to the structure modification.
渐进结构频率优化中的二次灵敏度反映了结构变化后单元灵敏度的变化情况,利用二次灵敏度的二次删除法能够在一定程度上解决标准渐进结构频率优化方法中效率和精度的矛盾,是一种可行的折衷算法。
3.
The balance between computational efficiency and accuracy is hard to reach when standard evolutionary structural optimization(ESO) method is used for frequency optimization.
针对标准渐进结构优化方法用于频率优化时难以达到计算效率和准确性之间的平衡,提出了二次灵敏度的概念,给出其计算公式,并且提出了一种利用二次灵敏度的频率优化算法。
5) dominant frequency
优势频率
1.
Recursive noise elimination in f-x domain and spectrum equalization under dominant frequency restriction;
优势频率约束下的递推f-x去噪和谱均衡方法
2.
The results show that the dominant frequencies are mainly located at low and intermediate frequency from 0 to 400 Hz, and different part of the floor has different dominant frequency.
该文通过对商务车白车身底板的动态性能测试,分析了底板3个不同区域的优势频率。
补充资料：频率计量(见时间频率计量)
频率计量(见时间频率计量)
frequency metrology: see time and frequency metrology
口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条