The best signal depends not only on its brightness but also on how well it contrasts with the background against which it must be seen.
最好的信号不仅取决于它的亮度，还取决于它与背景的对比度。
CLIA using acridinium ester derivatives as chemiluminescent label has advantages of low background and high signal-to-noise ratio.
以吖啶酯衍生物为发光标记物的CLIA的特点是：自然本底低和信噪比高。
The bright colors on the blue background indicate that an anomalous signal was received here on Earth by a radio telescope involved in a Search for Extraterrestrial Intelligence (SETI).
在蓝色背景上的明亮颜色表明在地球上收到了一个不寻常的信号，它来自于搜寻地外文明计划（SETI）的一台射电望远镜。
This could be because an excess of emissions creates enough background noise to mask the signal for certain predators, said Holopainen.
Holopainen说，这可能是因为过多的排放使背景噪音掩盖了授粉的信号。
The round signal is on top of a regular traffic signal and shows a white vertical bar on a dark background.
交通优先信号灯是圆形的，安装在普通信号灯的顶瑞，在深色背景上显示白色竖条信号。
Online monitoring of power system test signal contains a lot of background noise, not easy to detect.
电力系统在线监测中的检测信号含有大量的背景噪声，不便于检测。
It appears that the greatest difference between the background and the signal is in the red channel, but there are stripes on the image.
目测在红色通道中背景和标志间的差异最大，但是图像中仍然有条纹。
Traditional methods of signal detection and estimation were based on the assumption that the background noise is white.
传统的信号检测和估计方法一般是建立在背景噪声是白噪声这一假设基础之上。
We theoretically discussed the synchronization sample gate time determination by considering the optimal Signal-to-Noise Ratio (SNR) where the background showed time-uniformity distribution.
本文通过最佳信号噪声比分析，讨论了单分子辐射单光子在具有时间均匀分布背景信号时对同步取样时间的选取。
A key mode which allows use of a wipe pattern generator to prevent some undesirable portions of the key cut signal from cutting holes in the background video.
一种键模式，它答应使用划像图案产生器来避免背景图像的切割空洞中某些键切割信号不合需要的部分。
By means of the principle of correlation analysis, this paper introduces an approximate method for estimating signal-to-noise ratio on random noise background.
本文利用相关分析的原理，提出一种在随机噪音的背景上估算信噪比的近似方法。
Based on the PSD analyses, it is found that the signal of PSD is nonlinear when there exist background light.
根据光电位置敏感器件的原理及特征方程，分析了存在背景光时它的输出信号是非线性的。
In these methods, we use the optimum Wiener filtering and Window filtering deconvolution technique to process the background conductivity signal.
包括了最佳维纳滤波反褶积与窗函数滤波反褶积对于背景电导率信号还原的处理方法。
CFAR detection of radar targets in heavy clutter background is an important part in radar signal processing.
强杂波背景中的雷达目标恒虚警检测是雷达信号处理的重要组成部分。
CFAR detection of radar targets in heavy clutter background is an important unit in radar signal processing.
强杂波背景中的雷达目标恒虚警检测是雷达信号处理的重要组成部分。
Photo signal test could examine strong photo signals in dark background so that it was able to improve sensitivity of experiments, widen the range of application, and reduce specimen amount.
光信号检测是属于发出光并在暗背景检测强光信号，从而提高了实验灵敏度，拓宽了应用范围，减少了标本用量。
The key problem of the loose parts monitoring system for primary loop of pressurized water reactor is how to extract loose parts impact signal from complex background noise.
压水堆一回路松动件状态监测系统的关键环节在于如何从复杂背景噪声中提取松动件冲击信号。
The detection of fuze signal in strong background noise is an important topic in fuze signal process.
强背景噪声中引信信号的检测，是引信信号处理中的一个重要课题。
Under such background, this paper first introduces the principles of model order reduction and the significance of signal integrity analysis.
在这一背景下，本文首先阐述了模型降阶的基本原理，以及信号完整性分析的意义。
Firstly, the paper introduces the basic concepts of DMIS and signal computer monitoring system, and the developing background of the software route technology.
本文首先介绍了DMIS及信号微机监测系统的基本概念，并简介了软件路由技术的产生背景。
This filter can effectively restrain background noise and acquire clear speech signal when applied in speech signal pick-up from the background with complex noise.
将此滤波器应用于复杂噪音背景的话音信号提取，能很好地抑制背景噪声，从而获得清晰的话音信号。
Bilinear time-frequency transform possesses a high resolution both in the time domain and the frequency domain. It can be utilized to detect weak transient signal in complex background.
双线性时间-频率变换在时间域与频率域都具有较高的分辨率，有利于复杂背景条件下微弱瞬时信号的探测。
Tracking laser signal is very difficult under natural background condition due to the interference of environment and background noises.
在自然背景条件下，由于环境噪声和背景噪声的干扰，使激光信号的跟踪变得困难。
Then proposes a method to detect the arrival time of instantaneous signal and the frequency composition under strong noise background.
提出了在强噪声背景下检测瞬时信号的到达时间和频率成分的方法。
Fixed with application software based on SR, the system can collect and process the faint signal on real-time on the background of strong noise.
固化基于随机共振原理的应用软件，使系统能实时采集和处理强噪声背景下的弱信号。
A method on weak signal detection in a stronger noise background based on high-order statistics is presented in this paper.
提出了一种利用高阶统计量对强噪声背景下的弱信号进行检测的方法。
A method on weak signal detection in a stronger noise background based on high-order statistics is presented in this paper.
提出了一种利用高阶统计量对强噪声背景下的弱信号进行检测的方法。
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