实验证明，增强后的语音信号信噪比有一定提高，且优于传统的LPC模型。
The experimental results show that the SNR of enhanced speech signal is improved to some ex-tent, and the Unvoiced-Voiced model is more effective than LPC model.
信号信噪比来自外地所谓信号的进程，如果你愿意的话，是一个相当的技术概念。
Signal to noise ratios come from the field called signal process and that, if you like, is a quite a technical concept.
实验结果表明利用该方法产生的中频信号信噪比模拟精度远优于传统的实现方法。
The experimental results show that the precision of IF signal generated by this algorithm is much better than it generated in traditional way.
采用一种IIR自适应格型陷波滤波技术，调整陷波器的深度，提高了输出信号信噪比。
The depth of the notch is adjusted by using the adaptive lattice IIR notch filter, so as to improve the SNR of output signal.
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。
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.
与一般的噪声修正法相比，当信号信噪比不足时，对中后期的脉冲响应进行非线性拟合的方法更具优势。
Compared to ordinary noise correction methods, non-linear fitting with a middle and later impulse response function is more advantageous when SNR is relatively low.
为提升NQR信号信噪比，根据NQR信号的特点，提出了一种基于改进阈值函数小波变换的NQR信号去噪方法。
In this work, a signal process method for NQR signals is presented, which is based on wavelet transform and specially designed for the detection of pentaerythritol tetranitrate with NQR.
仿真实验表明，在中频信号信噪比较低的情况下，该方法具有较小的测距测速误差和较小的运算量，从而具有一定的实用性。
Results of simulation experiment show that the method has low calculation errors and calculation amount when the IF signal is in low SNR. These indicate the practicability of the method.
针对直接序列扩频信号工作中信噪比较低的特点，提出了一种通过求解接收信号相关矩阵的特征值来估计信号信噪比的方法。
In consideration of the low signal-noise-ratio (SNR) of DSSS signals, a method of estimating the SNR was given by resolving the eigenvalue of the received signal correlation matrix.
分析了在相同数据和随机数据扩频调制条件下接收信号信噪比估计的计算方法，并对于有频差情况下的计算方法进行了说明。
The two cases of pilot modulated data and random modulated data were theoretically analyzed, and the calculating method was also presented when the frequency offset existed.
目的采样得到的脉搏波信号信噪比较低，这给后续研究带来了困难，因此消除噪声的干扰是准确进行相关医学测量的关键前提。
Objective The directly sampled pulse wave signals have always a low signal to noise ratio, which leads to difficulties in the following research.
本章首先分析了各种数字载波调制方法，从调制信号信噪比的角度分析说明基于相位调制的方法适合作为双绞线载波调制的方法。
From signal to noise ratio analysis of the modulation signal, we choose the phase modulation method as the suitable carrier modulation for the twisted-pair.
研究结果表明，当信号信噪比较小时散射体移动不会对系统性能产生太大的影响，同时缓慢移动的散射体对系统性能的影响也不大。
It showed that the scatterers movement has slight effect on the UWB system when the signal-to-noise ratio (SNR) is small and the effect is mild when the velocity of scatterers is slow.
该文从时域连续信号角度出发，按照高斯随机过程模型，分析了时钟抖动对基带和中频线性调频信号信噪比的影响并给出了近似公式。
Based on Gaussian random process model and continuous-time system in time domain, this paper analyzes the effect on baseband and intermediate frequency sampling due to clock jitter.
结果表明：在消耗同样多硬件资源产生正弦信号时，采用该方法可以比采用DDS技术获得更好的输出信号信噪比，比采用直接CORDIC算法获得更高的输出信号频。
The simulation result also confirms that this method has the better SNR of output signal than DDS, and higher output signal frequency than direct CORDIC algorithm.
叠加提高了信号的信噪比，使研究人员能够更清楚地跟踪每一个独特的信号在月球内部传播的路径和行为。
Stackingimproved the signal-to-noise ratio and enabled the researchers to moreclearly track the path and behaviour of each unique signal as it passedthrough the lunar interior.
在尝试记录头皮以下的大脑电活动时，他补充说，“人们想当然的认为信号的信噪比和这些信号的信息内容是有限的。”
In trying to record the brain's electrical activity off the scalp, he adds, "people assumed that the signal-to-noise ratio and the information content of these signals were limited."
如果某个量化字长能反映出输出弱信号的变化，输出信噪比主要取决于自适应运算的字长。
If the variation of input weak signal can be reflected by certain word length, the output SNR mainly depends on the word length of adaptive operations.
本文对低信噪比直接序列扩频（DS／SS）信号的检测提出了设计方案和算法。
One detection design block diagram and algorithms for low S/N DS/SS signal are presented in this paper.
选择采样电阻，既要信噪比好，又要避免产生过大的测量信号。
Sampling resistance is both the signal to noise ratio to be good and avoiding to produce the oversized survey signal.
并在掺杂铌酸锂晶体中获得了高信噪比，信号光增益高达1583倍的光像放大。
We obtain a optical image amplification with high gain factor of 1583 in doped lithium niobate crystals.
根据三脉冲激光雷达回波信号的特点，对信号进行差分滤波和匹配滤波处理，信噪比提高约1.5倍；
According to laser radar echo characteristic, the difference filter and the match filter were adopted. As a result, the SNR is advanced about 1.5 times.
研究表明，立方法可以有效地抑制信号中的随机噪声成分，从而提高信号的信噪比。
Results of the study show that the method can effectively weaken the noise which infiltrated in the signals, and therefore improve the signal to noise ratio.
小波变换技术具有很强的信号分离能力容易把随机噪声从信号中分离出来，从而提高信号的信噪比。
Wavelet Transfer (WT) is a powerful technique in signal separation. It is very easy for WT to improve the signal-to-noise (SNR) by separating the random noise and useful signal.
对于MPSK信号而言，信噪比的估计可以直接转化成对信号模的估计问题。
For MPSK signals, the signal-to-noise ratio (SNR) estimation can be directly transformed into the signal module estimation.
理论与模拟结果证明这种方法可以实现低信噪比、相干信号源的良好分辨。
Theory and simulation results have proved and certificated that this method is able to excellently resolve the coherent signal sources of lower ratio of signal and noise.
与未采用故障信息增强方法相比，不仅提高了信号的信噪比，而且提高了故障信息。
Compared with the method without fault information enhancement, it increases not only the ratio of signal to noise, but also the fault information.
它有一个信号杂讯比(信噪比)的至少有75分贝。
它有一个信号杂讯比(信噪比)的至少有75分贝。
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