space filter meaning in English
空间滤波器
Examples
- The beam former of array signal processing is a space filter
阵列信号处理的波束形成器实质上是一种空域滤波器。 - This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center , containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity . at the same time , many wide - applied metering technology , for example , the diffracted field ( fringe ) measurement , co - focal lens system , optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well , were combined into it successfully . this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing , instrument science , measuring and testing technology and automatic technology
该多功能激光光电实验系统以泰曼-格林干涉( twyman - green )光路作核心，包括先进的数字波面干涉技术和一种基于空间干涉原理的、纳米分辨率零差干涉仪位移测量方法，同时将多种新颖、工程实用价值高的测量技术和光路如衍射测量、共焦显微技术、光纤传感技术以及反映傅立叶光学基本光学原理的4f空间滤波系统也组合进去。 - In this paper , both speckles filtering in space and wavelet based methods is used to reduce the speckle . analysis is done to compare the result of filtering . the paper uses enhanced lee filter , unbiased gmap algorithm , shrinking of wavelet coefficients algorithm , wavelet analysis with wiener filter , wavelet analysis with space filter to filter the speckle in four different sar images , and gives a suggestion for the choice of right filter in different situation
分别选用增强lee滤波算法、无偏gmap算法、小波系数压缩滤波算法、小波变换与维纳滤波相结合、小波变换与空间滤波相结合的方法对四幅不同的sar图像进行滤波，指出了各滤波算法对不同图像处理的优缺点，给出了在不同应用环境下，选择使用不同滤波器的意见。 - Due to the specialties of fault signals in missile fault diagnosis , we proposed a novel de - noising method applying wavelet analysis scale space filter by using the properties of the signal and noise modulus maxima across scales . and modified it by using information on neighboring coefficients into the decision making . this de - noising method can reduce noise to a high degree while preserving most of the important features of the signal such as edges and other singularities
研究了小波理论在信号去噪方面的理论和算法，并针对故障信号的特殊性，提出了基于小波变换模极大值理论的尺度相关信号去噪方法，并提出了改进方法，将临近系数的信息也作为决策的依据，从而得到了既能保护信号的奇异性特征，又可以取得较好信噪比的新的信号去噪方法，并将其应用于实际系统，取得了很好的效果。 - For successfully applying ae on detecting crack during fatigue test , noise restraining , signal locating and the building of ae features database has been deeply investigated in this thesis . in brief , the following are the primary contents : by analyzing the source of noise , several methods of restraining the noise are proposed : space filter , amplitude filter , bp filter , parameters filter , hit time setting and illustrate analysis
本文基于将声发射技术应用到直升机部件疲劳裂纹检测中，对噪声的抑制、声发射源定位的问题以及声发射特性典型参数数据库的构造进行了研究，主要工作如下： ?分析噪声的来源，对如何抑制环境噪声进行了研究。