The existence of the noise interferes detection for useful signal, and affects system operating range.
噪声的存在干扰了有用信号的探测，减少了系统的作用距离。
A large log file is difficult to use because you need to filter out a lot of noise to find the useful signal.
较大的日志文件很难使用，这是因为它们需要过滤大量的噪声才能找到有用的信号。
The experiment results show that the temperature of grinding chips thermal flow is a useful signal source.
实验结果表明，磨屑热辐射流温度信号是较好的辨识砂轮磨钝的信号源。
Because it is not easy to distinguish low signal of grey scale ultrasound by eyes, useful signal loss may happen.
灰阶超声由于低回声信号不易为人眼识别，甚至有用信息丢失。
A matrix of anti-interference is used, which can distinguish useful signal from interference signal quickly and validly.
该算法中采用了抗干扰矩阵，可快速有效地区分有用信号及干扰信号。
Filter is a useful signal can pass while the frequency of the unwanted signal suppression (or attenuation) of the electronic devices.
引言滤波器是一种能使有用信号顺利通过而同时对无用频率信号进行抑制(或衰减)的电子装置。
The results show that the smart antenna can efficiently strengthen useful signal, decrease interference and form the optimum directivity diagram.
结果表明，智能天线可以有效增强有用信号，降低干扰，从而形成最优的方向图。
Because there are so many interferences in the industry, especially the electromagnetic stirring make the noise is more greater than the useful signal.
由于工业现场存在大量干扰，尤其是电磁搅拌转置的使用，使得干扰比有用信号强很多。
The signal to noise of the useful signal of objective layers is greatly improved by reflective coefficients in the window of resonance and transmission.
通过选择套管共振透射窗，提高目的层有用信号的信噪比。
Moreover, the seismic data quality in the complex structure zone is poor, and there isn't any useful signal in some area, which will increase the drilling risks.
而在构造复杂带地震资料往往品质差，甚至无信号，钻井的风险增大。
In the communication system, the use of appropriate technology of filtering to extract useful signal from the polluted signal, has a very wide application prospect.
在通信系统中，采用合适的自适应滤波技术，从被污染的信号中提取有用的信号有着非常广阔的应用前景。
After analysed the principle of time domain average method, the conclusion can be got that this method can extract the useful signal and keep the linearity phase change.
通过对其原理的分析，证明了该方法在实现对有用信号滤波的同时也保证了信号的线性相位变化。
The most major advantage of the method lies in the fact that only the interference wave with single frequency can be suppressed, and the loss of useful signal is very limited.
本方法的最大优点是仅对单频干扰波进行有效的压制，对有效波的损失很小。
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.
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。
Considering the effect of the shadow fading and fast fading on the receive signal, the received useful signal and interference signal should be random variables which change continuously.
考虑到阴影衰落和快衰落对于接收信号的影响，接收到的有用信号和干扰信号是随机变量，相应的载干比也是随机的。
In both cases the actions of other people send a signal that may be useful for others to follow.
在这两种情况下，这些人的行为发出一种信号，其他人可以跟风，这种信号可能是有用的。
This notion of inter-domain transformation is useful in many fields of study-for example, moving from the time domain into the frequency domain in the field of signal processing.
这种域间转换的概念在很多领域的学习中都很有用—例如，信号处理领域中从时间域移入频率域。
Full reversion has not yet occurred; this has not been a very useful trading signal.
完全价值回归尚未发生，而且这也并非有用的交易信号。
Exchange rates often provide useful warnings about emerging imbalances, but overconfidence and herd behaviour weakened the signal.
汇率通常会对正在出现的不平衡提出警告，但过度自信和群体行为则削弱了这一信号。
The wrasse's stripes may signal that it is a useful helper rather than a ready meal.
它身上的条纹可能暗示它是有用的帮手，而非一顿餐点。
The new technique will be useful in digital signal processing.
因此，在数字信号处理中，是一种有用的方法。
This is useful for detecting when a signal gets stuck at a particular voltage.
这是非常有用的对于检测一信号什么时候滞留在一特定电压。
Moreover, if umami does signal satiation, then it might be a useful tool for dieticians.
此外，如果鲜味真的是饱腹的信号，也许对营养师是一个有用的工具。
It depends. Mobile phones are not useful for country people because there is no signal in the remote places but they can take photos with cameras.
依情况而定。手机在农村不实用，因为在偏远山区没有信号，不过他们可以使用相机来拍照。
Signal filter: signal filters can be useful in a number of circumstances, such as when spurious noise is inadvertently added to the signal as it travels through the switch.
信号滤波：在许多的环境下，信号滤波是非常有用的，例如当信号通过开关时会加入寄生噪声时。
The single-end connection is useful when a signal is referenced to ground.
当信号值是相对地而言的，则使用单端连接。
In combination with signal intensity and morphologic features, MRI is more useful and, therefore, superior to CT in differentiation of malignant from benign pleural tumor.
但当MR信号与形态学特点结合时，其对良、恶性胸膜肿瘤的鉴别诊断价值则明显优于CT。
In combination with signal intensity and morphologic features, MRI is more useful and, therefore, superior to CT in differentiation of malignant from benign pleural tumor.
但当MR信号与形态学特点结合时，其对良、恶性胸膜肿瘤的鉴别诊断价值则明显优于CT。
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