噪

基于数学形态学的图像去噪方法研究

Research Based on Mathematics Morphology Image Chirp Method

风力涡轮机个头大、噪音响，还会破坏周边风景。

Wind turbines are large and noisy and they disfigure the landscape .

SURE准则的图像小波阈值去噪

Image Denoising with Wavelet Threshold Based on SURE Rule

小波域隐Markov树模型的图像去噪快速算法

A Fast Algorithm for Hidden Markov Tree Training in Image Denoising

InSAR干涉条纹图去噪方法的研究

The research on filtering of the phase noise filtering in the interferometric SAR

经理论记录和实际地震记录检验，表明经ω－x域算子外推后的去噪效果有显著改进。

Theoretical and real data results prove that (ω - x ) - domain operator extrapolation brings obviously-improved noise reduction .

岩石爆破振动信号的EMD滤波与消噪

Filtering and denoising of rock blasting vibration signal with EMD

通过SF估计输入信号信噪比（SNR）来控制MF系数更新的迭代步长。

The step size for coefficient update in the MF is controlled by the estimated SNR .

理论上分析了OFDM信号在模拟光纤传输系统中影响载噪比的主要因素；

Analyzed theoretically the main factors that affects the OFDM signal carrier-to-noise ratio transmitted on the analog optical fiber transmission system ;

理论与实践都证明这种新型光检测放大器信噪比较高，能对微弱的PIN光信号进行有效地检测和放大。

Experimental results show that a high SNR is obtained and a weak PIN optic signal can be detected and amplified effectively .

高信噪比Langmuir探针系统

High signal-to-noise ratio Langmuir probe system

通过仿真实验，表明了本文建立的SVR谐波测量模型具有较好的测量精度和容噪能力，具有较强的稳健性。

Simulation illustrates the capability of tolerating noise and robustness characteristics of this method .

利用远参考与Robust技术手段对新疆北天山地区大地电磁原始资料进行去噪处理，以及静态校正、逐级反演、梯度法、残差法等处理与综合地质解释，取得了较好成效。

Using the Far Reference and Robust methods , the magnetotelluric sounding data of Northern Tianshan region in Xinjiang Uygur Autonomous Region are processed and the geological interpretation is given .

针对这一不足，在小波域隐Markov树模型（HMT）的基础上提出了一种图像去噪新方法。

According to the deficiency , a new image denoising method is proposed based on Hidden Markov Tree .

应力对磁、声Barkhausen噪讯频谱特征的影响

Effect of Stress on Magnetic and Sound Barkhausen Noise Frequence Band

应用时空变-倾角扫描叠加KL变换提高地震资料信噪比

Signal-to-noise ratio enhancement of seismic data using space-time varying and dip scanning stack KL transform

对于R类局部检测统计量还研究了在似然比融合和广义似然比融合条件下的性能，提出了一种估计局部观测信噪比的方法。

For the R type LTS , the likelihood ratio ( LR ) fusion and generalized likelihood ratio ( GLR ) fusion are studied . A method of estimating local SNR is proposed .

分析X射线系统的噪声来源，以一维方波图象为例，推导了其噪声表达式，得出图象传递信噪比。

The noise source of the X-ray image system is explained detail . Based on the image of , the noise of output image and the signal-to-noise ratio of image passing is deduced .

同时通过Matlab的模拟仿真表明，在信噪比较高时，新的算法定时估计性能更优于MC算法。

The result of Matlab simulation shows that the timing estimation performance of the new algorithm is better than the MC algorithm at higher signal-to-noise ratio ( SNR ) .

并选用低噪声、低功耗的12位同步采样AD转换芯片进行采集电路设计，既保证了系统的信噪比，又提高了系统测量精度。

Secondly , the system has a good SNR and high accuracy , which is own to the application of low noise , low-power , simultaneous sampling 12-bit A / D converter .

EMD相关度去噪及其在轧机信号处理中的应用

Research on EMD Denoising Method Based on the Correlation Degree and Its Use in the Signal Processing for Rolling Mill 's Signal

研究了强噪声混合条件下的独立分量分析（ICA）问题.提出了一种将级联双稳随机共振（SR）用于有噪ICA盲源分离的方法。

The independent component analysis ( ICA ) in strong noisy mixtures was conducted and a blind source separation method of noisy ICA was presented .

f-x域内提高地震资料的信噪比

Improvement of signal / noise ratio of seismic data in f-x domain

对于两个子系统北斗/罗兰C的实测定位数据，先用小波多尺度变换将信号在多个频率段展开，再根据小波熵判别法进行消噪和融合。

Integrated navigation system with original positioning data gotten from the two sub-system of Beidou / Loran-C , we used multi-scale wavelet transforms to expand signals in multi-frequency range then suppressed noises and fused data according to wavelet entropy discriminance .

仿真结果显示算法对攻击显示出良好的鲁棒性，如JPEG压缩、平滑、加噪等。

Experimental results show high robustness of the scheme to most of the digital image processes such as JPEG compression , blurring , noise addition etc.

SAR的后向散射成像机制决定了SAR图像中存在相干斑噪声，这些相干斑噪声降低了图像质量，掩盖了图像的细节结构，因此在SAR图像处理时通常先对图像进行去噪。

Because of the backscatters , SAR images are contaminated by speckle noises which lower image quality and mask image structure . Therefore , noise-smoothing is the first step in the image processing .

L1模反褶积解的渐近性质及白噪化处理

Asymptotic behavior of L1 norm deconvolution and its whitening

仿真和试验结果表明：在较低信噪比条件下，这种方法可有效地检测多分量LFM信号中分量数和进行参数估计。

The simulation results depict that this approach is efficient for the detection and parameter estimation of the multi-component LFM signal with low SNR .

针对低信噪比雷达图像的特点，在Radon变换的基础上利用机场目标和背景的雷达成像知识对Radon变换的结果进行后处理，以便可靠地提取雷达图像中的机场目标。

In order to extract airports from the lower SNR radar images reliably , the knowledge about radar imaging is used to post procession of the results of Radon transform .

结合二树复数小波变换和H？Curve准则做了相关的去噪实验，对实验结果进行了分析比较，说明本文算法能取得更好的去噪效果。

So combing the dual-tree complex wavelet transform and H-Curve criterion , some relative denoising tests are carried out , and after the results are analyzed and compared , it shows that this algorithm can produce a better denoising effect .