噪声抑制

Simulation results show that the proposed adaptive anisotropic filter has a strong noise suppression and preserve edges.

仿真实验表明，提出的自适应各向异性滤波器具有很强的噪声抑制和边缘保持能力。

The filter algorithm for speckle based on the ratio of arithmetic to geometric mean is immature.

目前，将算术—几何均值比应用于SAR图像相干斑噪声抑制的算法还不成熟。

Finally,a semi-fragile zero watermarking algorithm is designed based on the high frequency property of audio signal.

然后，结合离散小波变换的多分辨率分析特性、离散余弦变换的能量压缩特性以及高阶累积量的高斯噪声抑制特性，提出了一种音频零水印算法。

N algorithm based on the anisotropic diffusion equation is presented to suppress the speckle noise of B-Scan ultrasound image.

bstract 提出了一种基于各向异性扩散方程的B超图像斑点噪声抑制的算法。

The recently progress both inland and overseas in studying of the transient eddy current response and the ...

评述了脉冲涡流瞬态响应的计算、提离噪声抑制等方面的国内外研究进展，分析了脉冲涡流检测技术的发展方向。

The prediction method used in this dissertation is verified by comparing the measured noise reduction of PVDF hydrophone with predicted results.

实验得到的噪声抑制和用本文方法预报的结果随频率变化的趋势基本相同，证明了预报方法的可行性。

On the signal processing opinion, the received thermo-acoustic signals is deal with wavelet technique, the noise depressing and wavelet analyses method are very useful for the MITA signals.

从信号处理的角度，基于小波分析的噪声抑制技术也被应用到对测量的微波热致超声波信号进行处理。

A correction method for beam hardening, involving simple operations of the original polychrornatic projection sinogram, was presented based on the analysis of three physics properties implied by beam hardening. Its correction principle was deduced mathematically. A noise reduction method was proposed to suppress the noise enlarged by the harden correction by processing the high-frequency and the low-frequency components in the projection sinogram respectively.

在分析射束硬化现象具有的3个物理属性基础上，提出了一种对原始多色投影正弦图进行操作的硬化校正方法，并从数学上证明了其校正原理，针对该方法带来的噪声放大问题，研究了一种基于高、低频信息分类处理的噪声抑制方法。

The detection results of traditional edge detection method are fuzzing and sensitive to noise for convolution operation,and the detection results of morphological edge detection method are easy to lose edge information for various detection results.

针对传统的边缘检测方法因卷积运算造成模糊图像边缘，且对噪声敏感，各种形态学边缘检测方法因检测到的边缘信息类型不同而容易使边缘信息丢失，提出一种组合式抗噪型形态学边缘检测算子；并利用不同尺度的结构元素具有不同的图像边缘检测效果，进行形态结构元素的尺度调整，得到不同尺度结构元素下的图像边缘位置；然后进行加权合成来获得边缘图像；实验表明，与其他的传统或者形态学边缘检测方法相比，该文方法不仅具有更好的噪声抑制功能，而且其检测到的边缘轮廓更加清晰完整，边缘细节更加丰富。

The objective of design optimization for the current loop is to maximize the cross-over frequency. The results show the stability is improved and the capability of suppressing the switching noise is far better than the original. The objective of design optimization for the voltage loop is to minimize the gain of the line ripple voltage.As a result the bandwidth minishes obviously and optimization design excelles in restraining the ripple.

主电路以总体积最小为优化目标，优化结果表明电路的体积减少了0.5%；电流环以开环穿越频率最大为目标，优化结果表明电流环的稳定性能得到了改善，开关噪声抑制能力明显优于优化前的；电压环以线纹波电压增益最小为目标，优化结果表明电压环的带宽明显减小，纹波抑制能力远远优于优化前的。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。