叠加器 meaning in Chinese

averager
superimposer

Design of a new type of video character inserter
一种新型的视频字符叠加器的设计
It consists of three parts : accurately controlled signal source , time signal stacker and " sompi " cepstrum method
它包括三部分：精密可控震源、信号叠加器和“存否”倒谱方法。
The accurately controlled signal source generates sinusoidal elastic wave accurately controlled in frequency and stable in phase to " illustrate " underground media . time signal stacker receive signal by stacking and doing fft to measure the transfer function of media . " sompi " cepstrum method retrieve group velocity travel times and decayed factors of wave element from observational data of transfer function in a limited frequency window
精密可控震源用于产生频率精确相位稳定的正弦弹性波以照射地层内部，信号叠加器通过对接收信号进行叠加和进行傅立叶变换的方式实现对介质传递函数的精密测量， “存否”倒谱方法能够根据一段窄带频域传递函数数据获得时域上各个波成分的群速度传播时间和介质衰减因子。