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- Fourier spectrum ratio 傅立叶谱比
- It analyses the content of a sound and derives the Fourier spectrum. 该曲线分析了声音的构成并推出傅里叶频谱。
- The Collins formula and tensor ABCD law in spatial frequency domain provide the relation between the input spatial Fourier spectrum and the output spectrum directly. 空间频率域中的柯林斯公式和张量ABCD定律直接给出了像散光束的空间傅里叶频谱的传输规律。
- The kinematic error for ball screws is analyzed by means of Fourier spectrum and time series spectrum analysis. The error sources have been diagnosed. 本文应用Fourier谱分析和时序分析中的谱分析技术,对滚珠丝杆及其副进行了运动误差分析,诊断出相应的误差源;
- Based on the lateral Moire fringe of the gratings, the change of Moire fringe was researched by using Fourier spectrum while the frequency of a grating was changed. 用傅里叶频谱分析方法研究了横向莫尔条纹中一个光栅倍频时莫尔条纹的变化 .
- The structure of collagen was identified with Fourier Spectrum, and the aminophenol of collagen was assayed with high performance liquid chromatography. 并利用傅立叶变换红外光谱对胶原结构进行鉴定,同时采用高效液相色谱对所提胶原蛋白进行氨基酸组成分析。
- In analysis stage, each frame of Fourier spectrum is subtracted with its cepstrally smoothed version in order to extract harmonics parameters more precisely. 在分析阶段,对于音源音节各音框的傅立叶频谱作倒频谱滤波,以撷取较为准确的谐波参数;
- A.Anstry (1997).Horizontal-to-vertical spectrum ratio of earthquake ground motion for site characterization, Earth-quake Eng.And Struct.Dyn. 26, 671-689. 以地震资料研究高屏地下之浅部地层构造,国立中央大学地球物理研究所博士论文。
- On the basis of CGH, it can encode two objects simultaneously by adding negative quadratic phase factor on the conjugate Fourier spectrum of one object and adding positive quadratic phase factor on the Fourier spectrum of the other. 它是在计算全息的基础上 ,通过对两个物的傅里叶谱或共轭谱分别加正的或负的二次相位因子 ,求和后进行编码、制图、缩微而得 ,该滤波器可以分别对两个物实现匹配。
- If there is hydrocarbon in the formation, an abnormal value will occur in the low frequency part of the amplitude spectrum ratio eurve o On the contrary, when no hydrocarbon exists in the formation there will be no abnormal value on the curve. 当地层含有油气时,在振幅谱比曲线的低频部分就出现异常值; 反之,不含油气时,就不出现振幅谱曲线异常。
- Fourier Spectrum Analysis to Line Dot Image 线条形网点图像的频谱分析
- cross stochastic Fourier spectrum 互随机Fourier谱
- energy spectrum ratio and intersection technique 能谱比值交会技术
- Light coherence and Fourier spectrum analyzing experimental system 光的时间相干性及傅里叶变换光谱分析实验系统的研制
- The survey covered a broad spectrum of topic. 这本简史涉及的话题范围很广。
- The ratio of students to teachers is 35:1. 学生和老师的比率是三十五比一。
- The ratio of schoolboys to schoolgirls is 2 to 1. 男学生和女学生的比例是2比1。
- Men outnumber women here in the ratio of three to one. 此地男子数量以三比一超过女子。
- Fourier spectrum energy ratio 傅里叶频谱能量比
- The first or last term of a ratio or a series. 首项,末项比率或数列中第一个或最后一个项