查询词典 Signal-to-Noise

In the experiment, 40 Gb/s DPSK signal was demodulated successfully, and the extinction of the demodulated signal is 14.5 dB.

实验中实现了40 Gb/s差分相移键控信号的解调，解调信号消光比为14.5 dB，温度控制实现了输出结果的长时间稳定，并可在相长干涉和相消干涉之间转换。

A demodulator demodulates the received reflected signal, which has superimposed on it the microwave signal which originates from the microwave generator.

解调器解调接收的反射信号，该信号叠加在微波发生器产生的微波信号上。

The receiver demodulates the received signal by the modern signal processing technology which does not affect the user in common cooperative communication.

非协作通信是一种非授权接入通信模式。

Our demodulation system demodulates signal with ARM, and has many merits: First, high process capability improve the signal demodulation's precision and speed; Second, abundant interfaces make the demodulation system has a good man-machine interface, such as LCD display,keyboard input.

本解调系统采用ARM处理器做信号解调，使得系统具有很多优点：首先，高速的处理能力提高了信号解调的精度与速度；其次，丰富的外部接口使整个系统具有更好的人机交互界面，如具有LCD显示、键盘输入等；最后，由于集成部件多，降低了整个解调系统的成本。

Demodulates the FM modulated signal Y at the carrier frequency Fc. Y and Fc have sample frequency Fs. FREQDEV is the frequency deviation of the modulated signal.

Josephus 问题的解答。n个孩子围成圆圈，选任一个数m，从第一个孩子开始数，数到m停止，这个孩子离开，再从第一个开始数，直到剩下一个孩子。

From the view point of signal filtering,the principle of vibration signal demodulation method based on STFT is described and some factors affecting the demodulating performance are discussed.

从信号滤波角度，对基于STFT的振动信号解调方法的原理和影响其解调性能的各种因素进行了严格的理论分析，指出该解调方法实质是基于复解析带通滤波的H ilbert变换解调法。

The relationship between displacement of double diffracting gratings and the intensity of Moiré signal is studied by applying theories of physics optics and Fourier optics, a mathematical model of linear displacement measure based on the Moiré signal is established, and computer-simulated pattern changes are obtained.

应用物理光学和傅立叶光学理论，分析了双级光栅衍射时的相对位移与激光莫尔信号强度的关系，建立了基于激光莫尔信号的精密位移测量数学模型。

Based on the analysis of short-time calm characteristics of audio signal educing from produce-mechanism of audio signal , and the Linear Prediction coding technology , the basic principle of Code-Excited Linear-Prediction coding is discussed .

本文在分析了由语音信号的产生机理所得出的短时平稳特性的基础上，利用线性预测编码技术，分析了码激励线性预测编码的基本原理。

The factory adjusted output signal of the gyros may vary slightly, we must therefore sometimes correct the signal.

工厂调整的陀螺仪输出信号可能很小，因此有时候我们必须校准这个信号。

Based on the "Time Difference of Arrival Principle", the system locates the source of signal position in two or three dimensions by solving for the mathematical intersection of multiple hyperbolas based on the Time Difference Of Arrival between the signal reception at multiple sensors.

基于&抵达时差原则&，系统在两或三维定位信号源位置通过基于在多传感器信号接收之间&信号差异到达&的数学上多重双曲线交叉来解决。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。