English translation for "选择频率"

select frequency
selection frequency

Example Sentences:

	1.	Preferred frequencies , frequency levels , and band numbers for acoustical measurements 声学测量的优先选择频率频率级和频带数
	2.	By means of fourier integral for analysis of plus mag netic field frequency spectrum . it provides relation of magnetic field with maxim um frequency 利用付立叶积分对脉冲磁场进行频谱分析，讨论了脉冲磁场大小随所选择频率上限之间的关系
	3.	A frequency selective surface ( fss ) is a metallic periodic structure with frequency selective properties . depending upon design , it may be low - pass , high - pass , band - pass , band - stop filter 频率选择表面( fss )是具有选择频率功能的一块金属周期结构，它可以被设计成低通、高通、带通、带阻滤波器。
	4.	The equation including the nonlinear dispersion , i . e . the modified nonlinear schrodinger ( mnls ) equation , is a better model . in this thesis , we take mnls solitons as a model for femtosecond soltions . then based on the recently developed direct perturbation theory for perturbed mnls equation , we study the raman self - frequency shift of femtosecond solitons and its suppression by the means of frequency filters . for this purpose , first , we define the physical parameters of mnls solitons ; next , through the direct perturbation theory for perturbed mnls equation , under adiabatic approximation , we obtain the evolving parameters of mnls soliton on our questions and then choose the parameters of frequency filters based on it ; at last , we directly numerically simulated our questions by split - step fourier ( ssf ) method after improving the arithmetic of the differentiation of the nonlinear item for satisfying mnls equation 本论文以mnls孤子作为光纤飞秒孤子的模型，通过新近建立的mnls孤子直接微扰理论，研究光纤中由拉曼效应引起的飞秒孤子在传输中的自频移，以及通过频率滤波对自频移的抑制。为此，首先给出描述mnls孤子的各物理量，然后用mnls孤子直接微扰理论，解析地得到这些问题绝热近似下的孤子参数演化，并由此选择频率滤波的参数，最后用分步傅里叶方法，在对非线性项微商的算法做出了适合于mnls孤子的改善后，对拉曼效应及频率滤波进行了直接数值模拟，其中频率滤波参数用微扰理论确定。

Similar Words：

"选择匹配的多边形" English translation, "选择篇关" English translation, "选择偏小割缝尺寸的设计概念" English translation, "选择偏倚" English translation, "选择偏倚和自选择" English translation, "选择频率控制" English translation, "选择品" English translation, "选择品，精选品" English translation, "选择评估" English translation, "选择屏" English translation