信噪比

The theoretical prediction of the resolution of the sysytem should be in the order of 10 fs.

进一步的工作正在进行，以提高信噪比和系统的稳定性。

The innovative points include of this dissertation is introducing the x-p transformation into transient Rayleigh wave method to improve the extracting effect of fundamental surface wave; utilizing several methods to suppress alias and leverage point effects to raise the signal-to-noise.

本文的主要创新点：在瞬态瑞雷面波资料处理过程中入τ-p正、反变换，提高了面波基波的提取效果；综合使用多种压制假频和端点效应的方法，提高了地震资料的信噪比。

The theory of range gating is described and the key techniques for range gating are analyzed in this paper.

距离选通技术是克服大气后向散射，提高主动成像系统信噪比的有效方法。

In order to avoid the inaccurate measure of the positions of the CTF zero blurred by attenuation at high frequency, we used a Gaussian curve to compensate the attenuation of Fourier transform of image at high frequency in such way that the amplitudes of two CTF zeros at the curve were compensated to the same value.

由于冷冻电子显微图像通常信噪比很低，衬度函数曲线的零点的位置不容易分辨。

It is important that the effect of the diagonal loading upon the GIP performance be analyzed particularly in theory, namely the rational diagonal loading can improve the detection probability and the output signal-to-noise ratio.

从理论上详细分析了对角加载对GIP性能的影响，即合理的对角加载可以提高检测概率和输出信噪比。

Compacted with typical spectrometers as Ebert-Fastie spectrometer, Czerny-Turner spectrometer and Aberration corrected concave holographic grating spectrometer, we are going to do detail research especially on their working theory, structural parameters and function, such as the source of stray light, the analysis of signal to noise ratio, the placing of detector, aberration's theory, aberration's caculation and it's elimination.

结合比较典型的Ebert-Fastie型光谱仪、Czerny-Turner型光谱仪及凹面像差校正全息光栅光谱仪进行了详细分析，尤其对它们的工作原理、结构参数和性能指标进行了深入分析，如杂散光的来源、信噪比的分析及其改善方法、探测器的置放、像差理论、像差计算及其消除的办法。

In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.

除线性度、满量程和失调误差等传统直流精度规格外，该器件的动态性能参数也做了详细规定，包括谐波失真和信噪比。

If we increase headroom, we decrease signal-to-noise ratio.

如果我们增加Headroom，就得减小信噪比。

For convenience, we often divide dynamic range into two more specific ranges: signal-to-noise ratio and headroom.

为了方便，我们经常把动态范围分成两个更小的范围：信噪比和headroom。

If we improve signal-to-noise, we decrease headroom.

如果我们改善信噪比，就得减小Headroom。

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。