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target reflectivity
相关语句
  “target reflectivity”译为未确定词的双语例句
     It is always the emphasis to improve the resolution for reconstructing target reflectivity in research of inverse synthetic aperture radar(ISAR)imaging.
     提高图像分辨率一直是ISAR研究的重要内容,常规的ISAR成像算法在这方面存在着不足。
短句来源
     The outputs of this kind of optical fiber reflective sensor are independent o f the characteristics of the light source,of the losses in the ambient medium an d the target reflectivity.
     这种可补偿型光纤位移传感器的输出与传感器光源的特性、环 境介质以及被测目标表面的性质无关。
短句来源
     The characteristics of the traditional on-line monitoring method of hydro-generator thrust bearing is analyzed. An oil film thickness measuring system is applied to set up a new kind of optical fiber reflective sensor model, the outputs of the sensor are independent of the characteristics of the light source, the losses in the ambient medium and the target reflectivity.
     分析了水轮发电机推力轴承传统在线检测方法的性能特点,建立了一种新型的反射式光纤位移传感器的数学模型和一种基于前向神经网络的光纤传感器静态误差修正模型,并将其用于推力轴承油膜厚度的测试系统中。
短句来源
  相似匹配句对
     N TARGET
     命中目标
短句来源
     DYNAMIC STUDIES OF LASER REFLECTIVITY OF ALUMINIUM TARGET
     铝靶激光反射率的动态研究
短句来源
     The contrast between target and its background is decided by their reflectivity.
     目标与背景在可见光波段的对比度取决于目标与背景的反射率;
短句来源
     Target Compounds.
     目标化合物:
短句来源
     Measurement of the Vacuum Ultraviolet Reflectivity
     真空紫外反射率的测定
短句来源
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  target reflectivity
The desired image is the scattering functionS(f, τ), which describes the second-order statistics of target reflectivity in delay-Doppler coordinates.
      


This paper introduces the development study of Reflector board(cooperative target) reflectivity measuring instrument. By using comparing measuring method of symmetric doublet optical path and sampling from the same optical path, which are used as reference light beam and measuring light beam, it can solve the superposition problem between the incident light and reflective light from the reflector board. This problem cannot be detected by common method. The incident light flux is relatively constant...

This paper introduces the development study of Reflector board(cooperative target) reflectivity measuring instrument. By using comparing measuring method of symmetric doublet optical path and sampling from the same optical path, which are used as reference light beam and measuring light beam, it can solve the superposition problem between the incident light and reflective light from the reflector board. This problem cannot be detected by common method. The incident light flux is relatively constant and is not influenced by outside environment, due to using symmetric method. Thus the measuring instrument can reach to high accuracy, good reproducibility and low environmental requirement.

本文介绍了反光板(合作目标)反射率测量仪的研制。仪器采用对称双光路比较测量法,给定两束相等光通量的光束,分别作为参考光束和测试光束,并用分束器实现原光路取样,从而解决了合作目标反光板入射光线与反射光线重合不能用常规测试方法来检测的难题。由于采用对称双光路的方法,入射光通量是相对恒定的,不受外界因素影响,从而使反射率测量仪达到精度高、重复性好和环境要求低的设计要求。

It is always the emphasis to improve the resolution for reconstructing target reflectivity in research of inverse synthetic aperture radar(ISAR)imaging.The conventional ISAR imaging algorithms can not solve the problem effectively.Estimation of signal parameter via rotational invariance techniques(ESPRIT)is combined with the fundamental principles of ISAR which is often used to estimate the direction of arrival(DOA),so ESPRIT super resolution ISAR imaging algorithm is presented in this paper.The...

It is always the emphasis to improve the resolution for reconstructing target reflectivity in research of inverse synthetic aperture radar(ISAR)imaging.The conventional ISAR imaging algorithms can not solve the problem effectively.Estimation of signal parameter via rotational invariance techniques(ESPRIT)is combined with the fundamental principles of ISAR which is often used to estimate the direction of arrival(DOA),so ESPRIT super resolution ISAR imaging algorithm is presented in this paper.The results of experiments show that the higher resolution may be obtained by super resolution algorithm.

提高图像分辨率一直是ISAR研究的重要内容,常规的ISAR成像算法在这方面存在着不足。将普遍运用于方向估计中的旋转不变参数估计技术(EstimationofSignalParameterviaRotationalInvarianceTechniaques,ESPRIT)与ISAR成像的基本原理相结合,提出了ESPRIT超分辨ISAR成像算法。从实验结果看,这种超分辨算法显著提高了图像分辨率。

In this paper,an oil film thickness VXI measuring system of the thrust bearing t est has been applied to set up a new kind of optical fiber reflective sensor mod el.The outputs of this kind of optical fiber reflective sensor are independent o f the characteristics of the light source,of the losses in the ambient medium an d the target reflectivity.Additionally,the distance information is an averaged o ver several points on the target surface,which reduces signal fluctuations due t o inhomogeneities.Furthermore,an...

In this paper,an oil film thickness VXI measuring system of the thrust bearing t est has been applied to set up a new kind of optical fiber reflective sensor mod el.The outputs of this kind of optical fiber reflective sensor are independent o f the characteristics of the light source,of the losses in the ambient medium an d the target reflectivity.Additionally,the distance information is an averaged o ver several points on the target surface,which reduces signal fluctuations due t o inhomogeneities.Furthermore,an optical fiber sensor model of correcting static error based on BP artificial neural network (ANN) is set up in this paper.Accor ding to the actual application of operating experiment in the thrust bearing tes t board,the designed oil film thickness VXI measuring system shows better perfor mance.

本文建立了一种新型的反射式光纤位移传感器的数学模型,并将其用于推力轴承试验中测量 油膜厚度的VXI测试系统中。这种可补偿型光纤位移传感器的输出与传感器光源的特性、环 境介质以及被测目标表面的性质无关。同时,通过把多点测量值求和后取平均值,消除了由 于几路接收光纤特性非均质引起的信号波动。此外,本文还建立了一种基于前向(BP)神经网 络的光纤传感器静态误差修正模型。通过应用于推力轴承试验台的实测中,该油膜厚度VXI 检测系统显示了良好的性能。

 
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