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region target
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  区域目标
     Based on the principle of SAR imaging and characteristics of active jamming against SAR,methods of evaluating the active jamming effects against SAR,such as subjective evaluation,point target imaging and scattering region target imaging,are proposed according to the quality evaluation index of the SAR image. The problem of using equivalent ENL and image dynamic range to measure the jamming effects is also discussed.
     根据SAR成像工作原理以及有源干扰对SAR作用的特点,利用SAR图像质量评估指标,提出用主观评估、点目标成像以及散射区域目标成像的方法来评价有源干扰对SAR的干扰效果,并就等效视数和图像动态范围对干扰效果的度量问题进行了探讨。
短句来源
  “region target”译为未确定词的双语例句
     FREQUENCY-DOMAIN RECOGNITION METHOD FOR WIDEBAND RADAR OPTICAL REGION TARGET
     宽带雷达光学区频域识别法
短句来源
     The dissertation study rural poverty in Ningxia, distribution characteristics and it's factors to find the basic principles of pro-poor policies in the western region, target and focus, content and channels of that. The study based on household data grouped per capita net income by the 1984-2004 socio-economic surveys yearbook of Ningxia and survey data of 72 observation village 720 fanners from rural poverty monitoring fixed observation spot.
     论文关于1984-2004年宁夏农村贫困的演进及其分解研究的设定了如下三个目标:(1)准确度量1984—2004年宁夏农村贫困演进趋势,给出宁夏贫困规模和程度的真实信息,以评估中国政府的扶贫绩效。 (2)从增长和分配的角度分析贫困演进的阶段性特征,以评估经济增长和收入分配对贫困的作用。
短句来源
     3. Three texture segmentation models are analyzed thoroughly combined with basic characteristics of region target and a texture segmentation model is presented according to the character of residential areas.
     3.结合遥感影像中面状目标的纹理特征,深入分析了前人提出的三种纹理分割模型,并结合居民地的特点提出了基于几何结构信息的纹理分割模型。
短句来源
     Based on above prequisites, the article regards that higher vocational education should reposit its function, region, target, market, curriculum, class hour, business, scale and so on to meet the needs of constructing learning society and achieve itself development and perfectness.
     本文认为,在如上前提下,高职教育应重新对其职能、区域、目标、市场、课程、课时、业务、规模等进行定位,以适应学习化社会建构的需要,并在这一过程中实现自身的发展与完善。
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  相似匹配句对
     N TARGET
     命中目标
短句来源
     Research on Locating the Horizontal Region of Ship Target
     舰船目标海天线提取方法研究
短句来源
     2, the segment and detection of the target character in the text region;
     文本区域中字符目标的检测与提取;
短句来源
     On the Target Management
     浅谈目标管理
短句来源
     REGION INTERPOLATION
     区域插值
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  region target
In this paper, we design a new variable target value procedure, the trust region target value (TRTV) method, for optimizing nondifferentiable Lagrangian dual formulations of large-scale, ill-conditioned linear programming problems.
      
A Trust Region Target Value Method for Optimizing Nondifferentiable Lagrangian Duals of Linear Programs
      
We believe, however, that the idea of measuring a region target-similarity distribution could be a universal ATR performance predictor.
      
The complexity is evident from the tail of the region target-similarity distribution.
      
SST is second-strand transfer vDNA, the R/5 -untranslated region target sequence.
      
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Meeting the application requirements of wideband radar optical region target recognition, this paper presents a simple and effective frequency-domain recognition method. First, two kinds of waves called backscattering amplitude wave and phase feature wave are constructed directly from frequency measured data sets, which keep invariant on the shift of target in the radial direction. Based on these waves, generalized frequency and length of wave are extracted as recognition features insensitive to...

Meeting the application requirements of wideband radar optical region target recognition, this paper presents a simple and effective frequency-domain recognition method. First, two kinds of waves called backscattering amplitude wave and phase feature wave are constructed directly from frequency measured data sets, which keep invariant on the shift of target in the radial direction. Based on these waves, generalized frequency and length of wave are extracted as recognition features insensitive to target azimuth. With the aid of the idea of "ruler transform" in time-frequency analysis, the feature sets are further completed. Aiming at lessening the effect of measuring noise, the paper then designs a specific preprocessing method. FMM neural network is chosen as the classifier with modified training algorithm. The recognition results show that this target recognition algorithm can obtain high correct classification rate.

该文以宽带雷达光学区目标识别为背景,由频域测量数据构造了不随目标距离像沿径向平移而改变的频域波形—回波幅值波形和相位特征波形;基于此波形,提取了两种对目标方位角不敏感的识别特征—广义频数和波形长度;并借助于时频分析中“尺度变换”的概念,把特征集进一步完备化。针对频域直接识别法易受测量噪声影响的缺点,设计了相应的预处理算法。选用FMM神经网络作为分类器,并修改了它传统的学习算法。对5种喷气飞机模型的识别结果表明,该算法具有较高的正确识别率。

Based on the principle of SAR imaging and characteristics of active jamming against SAR,methods of evaluating the active jamming effects against SAR,such as subjective evaluation,point target imaging and scattering region target imaging,are proposed according to the quality evaluation index of the SAR image.The problem of using equivalent ENL and image dynamic range to measure the jamming effects is also discussed.

根据SAR成像工作原理以及有源干扰对SAR作用的特点,利用SAR图像质量评估指标,提出用主观评估、点目标成像以及散射区域目标成像的方法来评价有源干扰对SAR的干扰效果,并就等效视数和图像动态范围对干扰效果的度量问题进行了探讨。

 
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