Fourier synthesis 傅里叶合成 ; 傅里叶综合法 ; 傅立叶合成 ; 富利业合成 fourier expansion 傅里叶展开 ; 傅里叶级数展开 ; 傅立叶展开 ; 富氏展开 Charles Fourier 傅立叶 ; 夏尔·傅立叶 ; 查尔斯·傅立叶 ; 傅利叶 ..
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Three kinds of the basic Fréedericksz transition are investigated by means of the Fourier series expansion of variables describing the orientation of the director, upon which threshold magnetic field of TN liquid crystal cells is mainly studied.
采用对描述指向矢取向的变量进行傅里叶级数展开的方法,研究了三种基本的Fréedericksz转变,并在此基础上重点讨论了TN液晶盒的阈值磁场。
参考来源 - 空间各向异性势向列液晶盒的Fréedericksz转变·2,447,543篇论文数据，部分数据来源于NoteExpress
采用傅里叶级数展开计算法、实现对电压、电流、功率因数和电量的测量和计算；
It uses Fourier series in expanding calculus, to achieve the measuring and calculation of volt, current, power factor and quantity of electricity.
研究表明，只要傅里叶级数项数不少于30，改进后的算法比直接用复高斯函数展开具有更高的计算精度。
It is shown that the improved algorithm provides more accurate calculation results than the complex Gaussian function expansion, so long as the number of Fourier series is no less than 30.
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