The theory of symmetrical function is used to suppress additive stationary random noise; assumption is that the signal and the noise are mutually uncorrelated.
文中利用对称相关函数理论,分析了抵消平稳随机过程中与信号不相关的加性随机噪声的机理,并应用于线谱信号检测。
In this paper, we determine the smoothing scale by diffusion balance with analyzing the signal and the noise energy variation in anisotropic diffusion smoothing processing.
这里通过各向异性扩散过程中信号与噪声能量的变化,利用扩散平衡来确定平滑的时间尺度。
The resulting limit, given in units of bits per second, is the absolute maximum rate of error-free communication given signal strength and noise level.
在给定信号强度和噪声水平的情况下,以比特每秒为单位给出的最终限制是无差错通信的最大绝对速率。
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.
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。
The elite audience now knows more and can sort through the noise to find the signal.
精英观众现在知道得更多,他们能够从噪音中整理出信号。
It would also need good shielding and special electronics to filter the DSSS signal from the radio-noise created by the Earth, the sun and the rest of the galaxy.
同时还需要良好的外层保护和特殊电子器件,从地球、太阳及其太空中传来的无线电“杂音”中过滤出dsss信号。
Additionally, the signal-to-noise theory tells us that anything that doesn't add to the message or function of a website (the signal) gets in the way and makes the design less effective (the noise).
此外,信号噪音的理论告诉我们,给网站(信号)的信息和功能添加额外的东西,只能令到网站设计效果更差(噪音)。
What Dr Shields did was to work out a way of subtracting the noise, and thus extracting the signal.
谢尔兹博士所做的就是找出法子降低噪音,从而将信号提取出来。
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."
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。”
Although these methods can control and reduce the noise in most measurements, some techniques just prevent noise from entering the system, whereas others remove only extraneous noise from the signal.
虽然这些方法在大多数测量中能控制和减少噪声,但是一些技术只是防止噪声进入系统,而其他只是去除信号中的外来噪声。
But the signal environment that includes external noise, different kinds of clutter and interference will significantly limit the detection performance and system capability.
但是,包含外部噪声、各种不同杂波和干扰的信号环境将大大限制探测性能和系统能力。
Measurement of the signal is usually vibration and noise, temperature, pressure, current, voltage, etc to one or more of the signal.
测量的信号通常是振动、噪声、温度、压力、电流、电压等信号中的一种或几种。
In the algorithm, a new noise detection scheme is adopted to separate the pixels in the image into signal pixels and noise pixels.
该算法采用一种新的噪声检测方法将图像中的像素分为信号点和噪声点两类。
It can effective extract principal features of the signal and repress the noise.
它可有效地提取信号的主要特征和抑制噪声。
To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.
针对压制干扰和质心干扰的特点,分别建立了噪声干扰模型、信号功率衰减模型和质心干扰模型。
Through estimating the signal and noise subspaces with the eigen-decomposition of the correlation matrix, the MUSIC algorithm is used to estimate the DOAs of LFM sources.
通过对相关矩阵进行特征值分解,估计信号子空间和噪声子空间,并利用MU S IC算法估计宽带LF M信号的波达方向。
The problems about the selection of excitation signal, limits of measurement frequency and noise influence have been discussed.
最后还讨论了时域法测量电极阻抗的激励信号的选择、测量频率上、下极限和噪声影响等问题。
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.
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。
Furthermore the analysis of the Signal Integration (si) is considered, which has improved the anti-noise ability and the reliability of the system.
同时对测试系统进行了进行了信号完整性分析(SI),这对系统的抗干扰能力、可靠性的提高有很大的帮助。
Obviously, the dynamic threshold is to use quasi-peak level that, while the signal to noise ratio is expressed with the quasi-average levels, and the difference is obvious in.
显见,动态阈是用准峰值电平表示,而信噪比则是用准平均值电平表示的,两者的区别是显而易见的了。
A circuit used for detecting the signal of the micromachined gyroscope with capacitive detection is pre-sented, and its capability of restraining noise is also analyzed.
提出了一种适用于电容检测型微机械陀螺的信号检测电路并分析了其对噪声的抑制能力。
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。
Operating signal noise was also considered, and the sensor photodiodes were deeply embedded in silicon to isolate them from noise-causing elements on the chip surface.
考虑了工作信号躁声,感光光电二极管深嵌入硅片中,与芯片表面上产生噪声的元件相隔离。
In this paper, the formula of transinformation of channels in which the distributions of signal and noise are triangular is derived.
本文推导信号和噪声为三角形分布的信道的信息传输量计算公式。
This paper presents at first the definitions of the space expanded by an array, the signal subspace and the noise subspace.
首先对基阵所张成的空间、信号子空间和噪声子空间给出了定义。
Sampling resistance is both the signal to noise ratio to be good and avoiding to produce the oversized survey signal.
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。
Signal detection system based on chaos theory has the critical sensitivity to periodic signal and the immunity to the strong noise, which can be used in weak signal detection area.
基于混沌理论构建的信号检测系统具有敏感微弱周期信号和对噪声有强免疫力的特点,用于微弱信号检测领域优势明显。
Signal detection system based on chaos theory has the critical sensitivity to periodic signal and the immunity to the strong noise, which can be used in weak signal detection area.
基于混沌理论构建的信号检测系统具有敏感微弱周期信号和对噪声有强免疫力的特点,用于微弱信号检测领域优势明显。
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