利用余弦型的复合光栅作为滤波器，在相干光处理系统中可对图像进行微商。
Pattern differentiation can be performed in a coherent Optical processing system if a composite sinusoidal grating is used as a filter.
首先，利用FFT处理器来完成相干积累和窄带滤波。
Firstly, FFT is given to complete coherent integration and narrow filtering.
合成孔径雷达(SAR)图像相干斑噪声滤波技术分成三类：多视处理、统计滤波和变换域滤波。
Synthetic Aperture Radar (SAR) speckle filtering techniques can be classified into three categories: multi-look processing, statistical filtering and filtering in transform domain.
间歇采样转发干扰利用脉压雷达的匹配滤波特性，相比于传统的干扰样式能对相干雷达产生更有效的干扰。
The interrupted-sampling and repeater jamming(ISRJ), using matching filter characteristic smartly, is more effective for coherent radar than the conventional interference mode.
利用光栅作为滤波器，在相干光处理系统中可对字符进行相加和相减。
The addition and subtraction of characters can be performed in a coherent optical processing system if a grating is used as a filter.
该评价体系能同时衡量各滤波算法对相干斑的抑制程度以及对图像原始信息的保持程度。
This evaluation procedure can measure both the speckle suppression preformance and the loss of original information of the image.
实验结果表明，本算法处理效果优于目前常用的相干斑滤波算法。
Eperimental result shows that this algorithm is better than other existing speckle reduction methods.
在偏时域相干算法的基础上，采用自适应滤波分析技术，是一种新的信号分离算法。
It is a new kind of signal separation algorithm base on the partial time-domain coherent algorithm USES the adaptive filter analysis technology.
本文论述了两种消去多次波的处理方法。即相干加强方法和二维滤波方法。
This paper discusses the two methods for suppression of. multiple waves, namely, coherence emphasis method and two dimensional filtering method.
预处理滤波器改善了输入与参考之间的相干性，而降低自适应滤波器的阶数则降低了算法运算量。
The pre-treated filter improves the coherence between the input and the desired response, and the decrease in order reduces operations of the algorithm.
在计算机上模拟一个均匀相干光源、个滤波器和一个接收屏。
A uniform coherent light source, a filter and a receiving screen are designed in computer.
此项技术利用了沿地层形成的低相干带和由断层产生的低相干带方向上的差别，通过局部方向扫描和多项式滤波来滤除不需要的低相干带和随机噪声带来的干扰。
Along horizon LCS and differences in directions of LCSs resulted from faults are used to suppress the undesired LCS and random noise through local dip scanning and polynomial filtering.
为此，采用T-X域时差变换滤波技术，即在T-X域内将曲线型相干噪声线性化，通过视速度差异去除噪声，从而达到压噪目的。
Therefore, moveout transform filtering method in T-X domain was adopted, which linearized the curved coherent noise in T-X domain, and remove noise by the contrast of apparent velocity.
与双滤波器相干检波相比的主要优点是带宽减少了四分之三。
The principal advantage over the dual filter coherent detection is a four-fold reduction in bandwidth.
为了在相干象增强系统中提高象的对比度，突出所需用的信号，采用了偏振滤波器。
In order to improve the image contrast and to single out the desirable signals in a coherent image enhancement system, a polarizing filter was used.
该波束形成器首先让信号经过维纳滤波器消除非相干噪声，而后经过经典的线性约束最小方差处理，最终达到较好的语音增强效果。
This kind of beamformer can eliminate incoherent noise when signals pass Wiener filter, then achieve a better speech-enhance effect by linear constraints minimum variance beamforming.
MAP滤波器是一种常用的抑制SAR图像相干斑噪声的滤波器。
MAP filter is a filter which is often used to reduce the speckle of SAR images.
本文以机载合成孔径雷达图像相干斑滤波算法为研究内容，得出了一些有益的结论。
This paper focuses on the research of speckle filtering algorithms of SAR image and obtains some useful conclusions.
因此，相干斑滤波技术是SAR应用的重要课题之一。
Therefore speckle filtering technique is one of the important problems in the application of SAR.
为了克服这个缺点，提出了使用相位滤波器改变相干面光源不同环区的相位。
For overcoming the shortcoming, a phase-only optical filter is used to change the phase of annular zones of coherent extended source.
SAR图像的相干斑会影响图像的分类准确度和精度，在进行分类处理前，对双波段全极化SAR图像相干斑进行矢量滤波处理。
Speckle in SAR images will disturb classification accuracy. Vector filter of speckle is used to dual-frequency images before classification.
通过用真实图像和模拟SAR图像对典型相干斑滤波算法的检验，表明了评价指标的有效性。
Test results of the real and simulated SAR images and typical speckle filtering algorithms show that these criteria are effective and in accordance with the visual assessment.
为了提高合成孔径雷达(SAR)图像相干斑抑制能力，建立了二维双通道滤波器组多级结构的相干斑抑制模型。
In order to improve the capability of Synthetic Aperture Radar (SAR) speckle reduction, the speckle reduction model of a 2d two-channel filter bank multiscale structure is presented.
实验结果表明，本算法处理效果优于目前常用的相干斑滤波算法。
Eperimental result shows that this algorithm is better than other existing speckle reduction m...
实验结果表明，本算法处理效果优于目前常用的相干斑滤波算法。
Eperimental result shows that this algorithm is better than other existing speckle re...
实验结果表明，本算法处理效果优于目前常用的相干斑滤波算法。
Eperimental result shows that this algorithm is better than other existing speckle re...
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