查询词典 Signal-to-Noise

A method of keying a radio carrier for transmitting binary data or teletypewriter signals, which consists of shifting the carrier frequency in one direction for a marking signal and in the opposite direction for a spacing signal.

对无线载波频率进行键控用于传输二进制数据或电传打字机信号的一种方法。这种方法是在某一方向上对载波频率进行漂移用于传输标记信号，而在相反方向上对载波频率进行漂移用于传输空格信号。

This instrument provides not only local pressures with indication but also continual output of 4～20mA direct current signal with linear relationship with its testee pressure signal.

带上隔膜部分后，可测量粘度大、有腐蚀性介质的压力。本仪表除就地进行压力指示外，还连续输出与被测压力信号成线性的4～20mA或0-10mA直流信号。

As a result, retransmission signal error rate characteristics are improved on the receiving side by despreading this code division multiplexed signal using the same plurality of spreading codes as on the transmitting side, and selecting or combining the despreading results with the greatest correlation power thereamong.

其结果，在接收端使用和在发送端相同的多个扩频码解扩该码分复用信号，选择其中相关功率最大的解扩结果或者是加以合成就能够提高重发信号的差错率特性。

By the theoretical analysis and computer simulation,several characteristics of radar signal have been discussed,such as ambiguity graph,distance resolution,velocity resolution and low probability of intercept performance.The simulations show that the hybrid signal has a "thumbtack" ambiguity graph and a better performance for the distance resolution and the velocity resolution.

通过理论分析和计算机仿真，给出信号的模糊图、距离分辨力、速度分辨力以及低截获概率(LPI，Low Probability of Intercept)特性分析，结果表明该信号波形具有近似"图钉"型的模糊图和良好的距离及速度分辨力。

The content of time signal protocol of the four important time signal transmitters in the world is researched.

通过对发射协议的解读，了解了时间信号的详细编码形式，从而为时间信号的解码提供了相对应的算法。

This is on digital signal processing toolbox, which contains a large number of digital signal processing procedures of Matlab.

这是关于数字信号处理的工具箱，里面包含了大量的数字信号处理的matlab程序。

MATLAB and the signal processing toolkit also with the signal processing theory and method of development and development.

而MATLAB的信号处理工具箱也随着信号处理理论与方法的发展而发展。

Smo protein is a transcriber in the Sonic hedgehog signaling pathway. Its anactivator that change extracellular Shh signal into intracellular Gli1 signal, thusinitiate the gene transcription in the cell nucleus.

Smo蛋白是Sonic hedgehog信号通路中的信息转换器，它能够把细胞外的Shh信号转换成细胞内的Gli1信号，从而启动细胞核内基因的转录，对Sonic hedgehog信号通路具有激活作用。

The ratio of the transmission signal and second - harmonic signal can be used for eliminating optical interference.

利用二次谐波与光纤光栅透射光强的比值来消除光路干扰。

The signal channel description is decided based on signal transportation route.

信号通道描述通过信号传输路径决定。

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％。