This paper presents a new type of low noise frequency conversion circuit based on the research of phase noise conception, generation as well as relativity measurement method.
本文在对相位噪声的概念、产生及其相关测量方法研究的基础上，设计出一种低噪声频率变换电路。
The team recorded data from the Opportunity's accelerometers, and sped up the low-frequency noise 1, 000 times. The result is best described as a sort of grinding noise.
队员从机遇号加速器收录数据，将低频噪声加快速度1000倍，然而结果对这种声音最好的描述是：这是一种轧轧声。
A design method for low phase noise agile X-band frequency synthesizer is presented, the theoretic analysis and calculation is performed and the test results are given.
介绍一种低相噪、捷变频x波段频率综合器设计方法，并进行理论分析、计算，最后给出测试结果。
EMD similars the wavelet transforms, the decomposition result is from high frequency to the low frequency distribution, namely the noise mainly concentrates in first several.
经验模式分解的主要思想类似小波变换，分解结果是由高频到低频分布的，即噪声主要集中在前几层。
In this paper, we propose a new algorithm for removing high frequency and low frequency noise in face images.
本文提出了一种解决滤除人脸图像中高频及低频噪声的新算法。
The low frequency exhaust noise of a diesel(4 85), its generation, frequency characteristics and influencing factors have been studied through theoretic calculation, analysis and experiment.
针对柴油机（4 85 ）低频排气噪声，对其产生机理、规律及其影响因素等作了理论计算、分析及实验。
V-MOS inverter high running frequency, high efficiency, low noise.
管逆变工作频率高，高效，低噪声。
An improving noise eliminated difference template based on the analysis of object and background gray value also has been developed to eliminate the low frequency noise in image.
对图像中的低频噪声，基于对图像中目标与背景灰度值特点的分析，提出了改进的差分去噪声模板。
Accelerometer readings can be jerky and noisy. Applying low-pass filtering on the signal allows you to smooth it and get rid of high frequency noise.
加速度传感器数值可能被颠簸和噪音影响。应用低通过滤器在信号上可以是它平滑，并摆脱高频噪音的干扰。
Removing high frequency noise pulses by a low-pass filter and Schmitt-trigger.
用一低通滤波器和施密特触发器排除高频噪声脉冲。
Experiments and simulations show that the proposed system can operate in audio switch frequency range without audio noise from the motor load, meanwhile, EMI can be limited to low level.
实验与仿真结果表明：该系统采用音频开关而不导致电机负载的音频噪声，同时使EMI能被限制在低电平。
Analog synthesis often use low-pass filter to remove electronic audio generator generated by high-frequency noise.
模拟合成器常常使用低通滤波器来去除电子音频发生器所产生的高频噪声。
In image denoising, traditional low-pass methods can suppress high frequency noise, at the same time they can destroy image details unsatisfactory.
在图像滤波方面，传统的低通滤波方法在滤除图像高频成分的同时，破坏了图像的某些细节。
A broadband, high resolution and low phase noise frequency synthesizer used in electronic detection and electronic countermeasure system is described in detail.
详细介绍了一种用于电子侦察与对抗系统中的宽带、高分辨率、低相位噪声频率合成器。
The traditional low-pass filter method can restrain the high frequency part and decrease noise but may destroy image detail, and other methods also have other defects.
传统的低通滤波方法将图像的高频部分滤除，虽然能达到降低噪声的效果，但会破坏图像的细节。
Direct Digital Synthesizer (DDS) has the advantages of high frequency resolution, rapid frequency change rate and low phase noise.
直接数字频率合成器dds具有极高的分辨率、频率转换速度快、相位噪声低等优点。
In this studies, window structure's resonance frequency resulted in indoor low frequency noise pollution which come from traffic noise.
在本研究中，窗户结构共振频率造成了道路两侧住宅室内低频噪声污染。
This paper presents a low phase noise indirect frequency synthesizer, which used in airborne fire control radar and is required to operate in a very harsh environment.
提出了一种间接合成的低相位噪声频率综合器的设计，该频综器用于某机载雷达中，从而要求其在极其恶劣的环境中同样具有良好的性能。
This paper presents a detailed discussion of the method for measuring low frequency noise in operational amplifier devices as well as an analysis of some key problems in the measuring process.
本文中详细给出了运放器件低频噪声的测试方法并对测试过程中的若干关键问题进行了深入剖析。
Regenerative dividers play an important role in frequency synthesizer with its low phase noise.
再生分频器以其优越的相位噪声性能，在频率合成中有着重要作用。
Signal is in low frequency, while noise in high frequency and minutia in image is also in this area.
信号主要分布在低频区域，而噪声主要分布在高频区域，同时图像的细节也分布在高频区域。
Second , the noise of double balanced mixer was analyzed, which involved analysis of low frequency flicker noise and high frequency thermal noise.
接着对双平衡混频器的噪声进行理论分析，包括低频闪烁噪声和高频热噪声。
The result shows that average absorption coefficient and noise reduction coefficient separately equal to0.58and0.60 and fine property of sound absorption at middle-low frequency.
结果表明材料的平均吸声系数和降噪系数分别达0。58和0。60，且材料的中低频吸声性能优良。
The traditional neural network correction has a good adaptivity to the noise. But with a stronger low frequency space noise, the correction effect is very poor.
传统的神经网络非均匀性校正算法对噪声具有较好的自适应性，但当空间低频噪声较大时，校正效果明显下降。
Low frequency noise is one of the most important factors in infrared detectors for space remote sensing applications.
红外探测器的低频噪声是制约器件能否应用于空间遥感的关键因素之一。
This allows the ear nerve to be tempered, low-frequency noise damage, there is a certain subduction.
这样可以让耳朵的神经得到锻炼，对低频噪音的伤害，有一定的消减作用。
If input sigmal is supwrimpsed with high-frequency noise use a low-pass filter in the input signal line.
若输入信号伴随高频干扰，应在线里用高频过滤器。
The integration path can work in wider frequency range and the low frequency output noise is reduced by improving the conventional integration path.
通过对传统双路径滤波器的积分支路的改进，使积分支路的可适用频率范围展宽，而低频输出噪声减小。
As an important way, the low-frequency noise has been used to evaluate and screen the reliability of military-used electronic device.
低频噪声已经作为一个重要的参量用于军用电子元器件的可靠性筛选和评估。
In the paper aiming at the problem of low frequency noise transmission through double panel structure, feedback active noise control technique is adopted to control noise transmission.
本文对于低频噪声在双层板结构中传播的问题，探讨采用反馈的主动噪声控制技术以达到控制噪声传播的目的。
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