signal-to-noise ratio

noun

1. 信噪比；信号噪声比
   the strength of an electronic signal that you want to receive, compared to the strength of the signals that you do not want
2. 讯杂比；讯息对杂讯比
   a measure of how much useful information you receive, compared to information which is not useful

1. To the question of Carrier Synchronization with low signal-to-noise ratio ( SNR) and High Dynamic, using the method of combining FLL with PLL to actualize the carrier tracking.
   针对极低信噪比高动态条件下载波同步问题，采用锁频环（FLL）和锁相环（PLL）相结合的方法来实现载波跟踪。
2. Signal-to-noise ratio of cylinder head vibration signal was enhanced by using wavelet's soft threshold value de-noising method.
   用小波软阈值降噪的方法提高了柴油机缸盖振动信号的信噪比。
3. The relationship between the probability of error, the signal-to-noise ratio of detector and the resolution of amplitude was deduced.
   推导了无线测量系统的接收机信噪比与检测错误概率以及幅度分辨率的关系。
4. At the same time, we combine the dynamic filter technique which chose different passband with different depth to hold the high signal-to-noise ratio.
   同时融入动态滤波技术，根据不同深度选择了不同的通带范围，有效地保证了信号的信噪比。
5. Quantitative image analysis involved calculation of signal-to-noise ratio, contrast-to-noise ratio and relative contrast.
   分别测量半月板、肌肉、脂肪和骨骼的信噪比、对比噪声比和相对对比度，进行定量分析。
6. Comparative Study on Continuous and Discrete Wavelet Transform for Low Signal-to-noise Ratio Signal
   低信噪比信号的连续与离散小波变换比较研究
7. The photometric signal-to-noise ratio is roughly proportional to the square root of the signal intensity.
   光度计的信噪比与信号强度的平方根粗略成比例。
8. A new digital modulation recognition method based on instantaneous information is proposed for the application under the low signal-to-noise ratio ( SNR).
   针对数字调制识别在低信噪比下的应用，提出一种新的基于瞬时信息的调制识别算法。
9. The relation of precision improving with signal-to-noise ratio is exponential function.
   反之补偿就小.而且定标精度与信噪比是指数函数关系。
10. Noise, an important factor which impact on the performance of ultrasonic online testing system, has a direct influence on the signal-to-noise ratio's level of ultrasonic signal acquisition.
    噪声是影响超声在线检测系统性能的一个重要因素，对超声采集信号信噪比的高低有直接影响。
11. Experimental results show that the algorithm outperforms the traditional one on both visual quality and Peak Signal-to-Noise Ratio ( PSNR).
    实验结果表明，该算法在主观视觉质量和客观峰值信噪比（PSNR）上都优于传统方法。
12. A method to classify neural spikes under low signal-to-noise ratio was investigated by using artificial neural networks and template-matching.
    基于人工神经网络和模板匹配，提出了对低信噪比神经元信号分类的方法。
13. In order to evaluate results of pretreatment, two definitions of signal-to-noise ratio and background suppression factor were given.
    为了评价预处理结果，定义了两个评价参数&信噪比和背景抑制因子。
14. 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。
15. Low Signal-to-Noise Ratio Radar Detection Based on DSP and FPGA Technology
    基于DSP和FPGA技术的低信噪比雷达信号检测
16. Stochastic resonance occurs in a certain case due to the co-operation of the system, signal and noise; and it is demonstrated by the signal gain and the signal-to-noise ratio gain in a certain noise.
    在一定条件下，由于系统、信号和噪声的协同作用而产生随机共振现象，并通过某一噪声强度下的信号增益及信噪比增益表现出来。
17. Experimental results showed that the algorithm could not only keep edge information of image, but also could improve signal-to-noise ratio of an image.
    实验结果表明，谊方法不但可以保持图像的边缘信息，而且能够提高去噪后图像的信噪比。
18. The experimental results show that the proposed denoising method can achieve high Peak Signal-to-Noise Ratio ( PSNR).
    实验表明该方法能取得较高的信噪比，并能保存图像的一些细节信息。
19. While, the system signal-to-noise ratio ( SNR) value decreases with the increase of the glass thickness and the detection distance.
    随着玻璃厚度的增加和探测距离的改变，系统的信噪比会随之变化。
20. The influence of Signal-to-noise Ratio ( SNR) of low-resolution images and registration error among them on the super-reconstruction of images is the bottle-neck in the field of remote sensing.
    低分辨率图像的信噪比（SNR）和图像之间的配准误差对超分辨率重构效果的影响是该技术应用在遥感领域的瓶颈。
21. The results also show that significant performances the estimator in extreme low signal-to-noise ratio can be obtained.
    同时该结果也显示在低信噪比下的估计器的卓越性能。
22. High signal-to-noise ratio have important meaning in the ultra-short laser interacting with material.
    高信噪比在超短脉冲强激光与物质相互作用中有重要意义。
23. Signal-to-noise ratio ( SNR) is one of the key parameters to quantitatively evaluate the image quality and radiometric performance of an imaging spectrometer.
    信噪比是定量评价成像光谱仪成像质量和辐射性能的的一项重要指标，信噪比的估算和测量对成像光谱仪的研制至关重要。
24. QPSK the additive white Gaussian noise environment, and the signal-to-noise ratio of the simulation.
    QPSK在加性高斯白噪声环境下，信噪比和误码率的仿真。
25. The demodulation process of the generated DPASK pulses is investigated and the relationship between optical signal-to-noise ratio ( OSNR) penalty and the input ASK power is presented.
    我们研究了DPASK脉冲的解调过程以及输入ASK信号功率与光信噪比代价之间的关系。
26. Conventional methods which stimulate seismic records cannot increase frequency components and improve signal-to-noise ratio at the same time.
    常规方法产生的地震记录难以在提高记录频率成分的同时提高记录的信噪比。
27. It is concluded that at low frequencies there is more deviation if signal-to-noise ratio is low or the reverberation time is short.
    结果表明，不同的数据处理方法在低频段、信噪比较小以及混响时间较短的情况下对声学参量的影响较大；
28. All analysis and conclusions build on monopulse radar and high signal-to-noise ratio hypothesis.
    所有结论及分析都是在高信噪比假设下针对单脉冲测角体制而言的。

noun

1. the ratio of signal intensity to noise intensity

   Synonym:    signal-to-noisesignal/noise ratiosignal/noiseS/N