信噪比

Under certain ratio of signal-to-noise and through the computer simulations and calculations, the performances in Mbius digital base band communication system of five often used modem function set, those are the even and odd symmetrical triangle wave, even and odd symmetrical square wave and saw-tooth wave and their inverse transforms, are simulated 10000 times, and the fluctuation ranges of the error rate P(subscript b are observed.

在一定信噪比的前提下，通过计算机仿真和编程计算，对Mbius数字基带通信系统中偶对称三角波、奇对称三角波、偶对称方波、奇对称方波和锯齿波这5种常用的调制解调函数族及其逆变换进行仿真1万次，观察错误概率P

The design and manufacturing processes of ultrasonic TR probes for manual and automatic inspection of the wheel rim s were introduced.

介绍了用于车轮轮辋超声波检测用的手动和自动探伤TR探头的设计和制造工艺，制造出了灵敏度高、盲区小、信噪比高的TR探头，在现场轮辋探伤中取得了良好的结果。

The PBR and PD of propeller shaft frequency with different sound pressures and acoustic vector signals were calculated under various noise backgrounds and different SNR.

不同输入信噪比的常规声压与声矢量信号非整数维谱的轴频PBR及PD进行了详细计算。

The results show that using the new algorithm, veracity of arriving time for sky-wave and ground-wave can get up to 99.6% and no less than 98.6% respectively,and signal to noise ratio can be improved 6dB relative to the standard of USCG.

结果表明，利用该算法，天地波自动识别的准确率分别可达99.6%和98.6%以上，相对USCG标准可改善信噪比6dB。

First, the atmospheric influence on FSO system and the character of atmospheric channel are analyzed, the SNR of atmospheric channel versus the weather visibility is deduced, and the coding and decoding principles of twofold turbo code are analyzed.

从研究大气对自由空间光通信系统的影响出发，在分析了大气信道特性后建立了大气信道信噪比和能见度的关系，详细阐述了双模turbo码的编码、译码原理。

The target formation in this area is Ordovician carbonate reservoir. Its anisotropies are strong and its dominant frequency and Signal-to-Noise are low. The describe of reservoirs using the tradition resolution method is very difficult.

研究工区主要目的层为奧陶系碳酸盐岩储层，非均质性强，横向变化快，而地震资料主频和信噪比都较低，用常规方法难以描述碳酸盐岩储层分布。

The design of signal-to-noise ratio in the circuit was raised to make measurement more stable and reliable.

驱动系统的设计从硬件角度提高了回波信号的信噪比和稳定性。

The ratio of signal-to-noise is raised and the system reliability is improved by using the digital signal processing technology.

采用的数字信号处理技术，有效地提高了采样信号的信噪比，增强了系统的可靠性。

Improving the signal-to-noise ratio and resolution of the seismic section is the important content in seismic data processing.

提高地震剖面的信噪比和分辨率始终是地震数据处理中研究的重要内容。

In addition, each pixel has its own amplifier for highest possible signal-to-noise ratio.

此外，每个像素都有自己的放大器最高信号的信噪比。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。