modulation parameter meaning in English
调制参数
Examples
- Given a received communication signal , the objective of modulation recognition is to decide the modulation format and estimate the modulation parameters of the communication signal without any priori knowledge about the signal information content
给定一段接收的通信信号，调制识别的目的就是在未知调制信息内容的前提下，判断出通信信号的调制方式，并估计出相应的调制参数。 - Some modulation parameters , such as the carrier frequency and the symbol rate , can be estimated prior to the recognition of modulation types . such other parameters as the modulation index , the modulation frequency deviation , and the signal broadband can be further estimated after recognition
部分调制参数如载波频率、符号速率在识别之前获得，在识别完成之后可以进一步估计调制指数、调制频偏、信号带宽等其余参数。 - The numerical results of the dispersion relation show some nonlinear effects : for a fixed geometry of a waveguid , beam parameters and plasma density , the increment of the modulation parameter may lead to a slight increment of the operating frequency , however , as the modulation parameter increases further , saturation may occur and the dispersion relations are hard to be separated , it is due to the overmodulation of the microwave power , this phenomenon itself belongs to the nonlinear effects
对于一定的波导、电子注参量和等离子体密度值，等离子体调制系数的增加，使工作频率略微升高。但是，随着等离子体调制系数的进一步增加，色散曲线变得彼此之间不可分辨，可以认为是等离子体的过调制导致了栅的饱和。这一现象是非线性的，可见，等离子体栅和调制场中文摘要是非线性关系，等离子体栅是非线性j 。 - 3 . in order to show the fact that the - licrowave modulates the background plasma density and the density grating influences the propagation of the microwave in return , the dispersion relation of the dielectric cerenkov maser filled with plasma grating is derived when the modulation parameter is varied
三、为了反映等离子体被微波场调制从而形成密度周期性分布的等离子体栅，反过来影响电磁波的传播这一物理事实，在调制系数变化的情况下，从等离子体栅的等效模型出发，推导了等离子体栅填充的介质cerenkov脉塞的色散方程。