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Part I deals with background material in the acoustic theory of speech production, acoustic-phonetics, and signal representation. 第一部分讲述有关语音生成的声学理论的背景知识，声学-语音学，及信号表达。
The definition of the complex signal, real modulation and complex modulation, the complex low-pass signal representation of real bandpass signal, SSB complex mo. 文中介绍了复信号的定义、实调制与复调制、用复低通信号表示带通信号、单边带复调制与解调,以及数字单边带韦瓦复调制在数字化载波机中的应用。
The FRFT has signal representation property both in space and frequency domain.The original image and the wate-rmark is transformed with different orders to improve watermarking security. 分数傅里叶变换具有空域和频域双域表达能力,可以对原始图像和水印信号分别进行不同阶次的分数傅里叶变换以增强水印安全性。
This paper presents a synthesis methodology for ECL circuits based on a mixed voltage-current signal representation and operation denned on the voltage and current signals. 基于混合电压-电流的信号表示及对电流、电压信号定义的运算,本文提出了一种ECL电路的混合综合技术。
Complex analytical signal representation 复解析信号
quadriphase signal representation 四相信号表示法
It is concluded that both of the representations are applicable to study narrowband pulse, but for broadband pulse only rigorous complex analytical signal representation should be adopted. 因此,窄带脉冲光束可以采用复振幅包络和复解析信号两种表示式来研究,而对于宽带脉冲光束,必须采用严格的复解析信号表示式。
A red light is usually a signal of danger. 红灯通常是危险的信号。
I stood watching for the signal to change to green. 我站着等待交通信号转为绿灯。
Let's set the clock by the radio time signal. 咱们照着收音机的报时信号把钟对一对。
A red lamp is often a danger signal. 红灯常常是危险的信号。
A reflected signal on a communication channel. 一种在通信信道上反射回来的信号。
The rise in prices was a signal for rebellion. 物价上涨引起了叛乱。
A channel over which pilot signal is transmitted. 可在其上传输导频信号的一种信道。
The signal was picked up by a downrange radar station. 该信号被试验飞行方向之内的雷达站收到了。
The driver is winking his lights to signal a turn. 驾驶员打着一闪一闪的灯光信号表示要转弯。
Everyone uncovered when the signal sounded. 信号响时，人人脱帽致敬。
The train must stop when the signal's red. 信号机是红色时,火车必须停驶。
A red lamp is used as a danger signal. 红灯用作危险信号。
Send out a distress signal; the ship is sinking. 船正在下沉，发遇险信号吧。