查询词典 signal to noise ratio

In this paper, a different measurement method for CEO is demonstrated and subsequently a better beat frequency signal with the signal-to-noise ratio greater than 40 dB is obtained.

为了实现对锁模飞秒钛宝石激光器的相位控制，采用改进的相移测量装置，使载波包络频移信号的信噪比提高到了40 dB以上。

CCD works in field readout mode which can be realized as binning-technology in vertical direction and the noises of video signal are filtered by Correlated Double Sampling, the signal-to-noise ratio of system was enhanced.

采用相关双采样技术滤除了视频信号中的相关噪声，提高了系统的信噪比。

The results show that, all the three methods can effectively correct the frequency, the energy centrobaric correction has the lowest precision and the ratio correction is the fastest and its precision is almost not affected by the change of signal to noise ratio.

结果表明：3种算法都可以使信号的频率更接近于真实值，其中能量重心法校正精度相对较低，比值法和相位差法精度较高，尤其是比值校正算法处理速度更快，校正的精度基本不受信噪比的影响。

The signal processing of narrow-beam radars are in the given direction to which the beam is pointing, so the received interferences and clutters only come from that direction and thus the signal-to-noise ratio is relatively high, and target detection is only need to be performed on the range-Doppler spectra, which has a relatively low demand.

而宽波束雷达则会接收到所有方位上的干扰和杂波，信噪比较低，除了需要在距离-多普勒谱上检测出目标外，还需要分别形成目标的阵列快拍以获取其空间谱估计。

The high signal-to-noise ratio and large dynamic range measurement of light signal returned from long distance is realized.

实现了对远距离弱光信号的高信噪比、大动态范围测量。

The wind profile radar received signal processed by the method can significantly improve the signal-to-noise ratio through the actual measurements.

经过实测，经此方法处理的风廓线雷达接收信号能够显著的改善信噪比。

The effects of the noise source and its direction of Chinese speech average frequency spectrum on the intelligibility of Chinese speech were discussed in different room acoustical characteristics and signal-to-noise ratio conditions.

在不同室内声学特性、不同信噪比条件下探讨汉语语言平均频谱干扰噪声及其方向对汉语语言清晰度的影响。

The adaptive processing method for diesel vibration signal is proposed, which can improve signal-to-noise ratio.

提出了用于柴油机振动信号的自适应处理方法，可进一步提高信噪比。

And can improve signal-to-noise ratio and resolution of reflecting signal from stratum sections.

提高了地层剖面反射信号的信噪比和分辨率。

Noise in optical coherence tomographic imaging degrades the quality of images, so improving image's signal-to-noise ratio is a focal problem in the development of OCT system.

光学相干层析成像过程中产生的噪声恶化了其成像质量。提高图像的信噪比一直是光学相干层析系统研制中一个焦点问题。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。