ID 原文 译文
48946 利用多部天线或多次航过形成高程上的合成孔径,SAR层析成像技术实现了对雷达目标的三维分辨能力,这对实现城区测绘、人造目标识别等均具有重要价值。 Using multiple antenna or sailed form the synthetic aperture on the elevation, the SAR tomography technology to achieve the goal of the radar three-dimensional resolving power, it can help realize the goal of urban surveying and mapping, artificial recognition are important value.
48947 总结了SAR层析成像系统及其信号处理技术的发展历程和研究进展,并对各种信号处理算法的性能优劣进行了研究与讨论。 SAR tomography system are summarized and the development of signal processing technology and research progress, and the performance of various signal processing algorithm is studied and discussed.
48948 最后,指出了SAR层析成像技术的研究热点并对其发展趋势进行了展望。 Finally, points out the research focus in the SAR tomography technology and its development trend is prospected.
48949 证据理论是一种有用的不确定推理的数学工具,在信息融合、模式识别等领域具有广泛的应用。 Of uncertain reasoning evidence theory is a useful mathematical tool, the information fusion, pattern recognition and other fields have a wide range of applications.
48950 如何根据获得的证据信息构造合适的基本信任分配即证据建模是应用证据理论的前提,但是证据理论并没有提供通用的证据建模方法,现有的证据建模方法都是面向具体应用的。 Evidence of how to obtain information construct appropriate distribution of basic trust evidence that modeling is the precondition of application of the theory of evidence, but the evidence theory does not provide a general modeling method of evidence, evidence of the existing modeling methods are geared to the needs of specific application.
48951 依据信息的抽象层次,将现有的证据建模方法分为基于特征信息和基于决策信息的建模方法,并分别对其进行了总结分析。 On the basis of the information level of abstraction, evidence of the existing modeling methods can be divided into modeling method based on feature information and based on the decision information, and has carried on the summary analysis.
48952 最后,讨论了证据建模中存在的问题并指出了未来的研究方向。 Finally, discussed the problems that exist in the modeling of evidence and pointed out the future research direction.
48953 传统的块匹配视频稳像算法不能完全去掉运动前景影响,在处理过程中需要预先设定判定相似度的阈值,容易造成计算误差,搜索算法搜索位置太多,加大了运算量。 The traditional block matching algorithm to stabilize the image video cannot completely remove sports outlook, in the process needed to determine the preset similarity threshold, easy to cause calculation error, search algorithm search position too much, increase the computational complexity.
48954 新算法首先对相邻两帧图像的匹配块进行x和y方向独立的块搜索,自适应地确定最优匹配位置;然后根据每次搜索最优匹配位置剔除运动前景目标块,调整步长进行下一步搜索,直到搜索步长为零时停止;最后计算出相邻帧间的移动向量进行运动滤波,补偿抖动。 New algorithm firstly for the match between two frames in x and y directions independent blocks of search, adaptively determine the optimal matching position;And the optimal matching position according to each search out the prospect of moving target, adjust the search step on to the next step, until the search step length is zero to stop;Finally calculate the moving vector between adjacent frames motion filtering and compensation.
48955 处理结果显示,该算法可以在视频大幅抖动、含有运动目标时和全局运动时进行准确稳像。 Significantly in processing results show that the algorithm can video jitter, contains motion target, and the global movement to stabilize the image accurately.