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equal-quality
相关语句
  均等质量
     An Algorithm for Equal-Quality FGS Video Streaming
     FGS视频均等质量流化算法
短句来源
     Algorithms for Equal-Quality Fine Granularity Scalable Video Streaming
     细粒度扩展视频均等质量流化算法
短句来源
     On the basis of related work,this paper proposes a algorithm based on slid-ing window for FGS equal-quality streaming.
     论文在相关研究的基础上,采用了基于滑动窗口的算法来进行FGS视频的均等质量流化。
短句来源
     Based on the discussions of related works, this paper presents two equal-quality FGS video streaming algorithms with/without loss in the non-real-time streaming application scenarios.
     在相关研究的基础上,针对非实时流化应用,分别讨论了在无损和有损条件下进行FGS编码均等质量流化的算法.
短句来源
  相同质量
     It is concluded that,compared to the conventional Fourier method,either higher resolution for the same effective bandwidth of transmitted signals and total rotation angle of the object or equal-quality images from smaller bandwidth and total angle may be obtained by LPDEDFT.
     LPDEDFT与普通的傅里叶方法相比,在相同信号带宽和目标总转角的条件下可以得到更高的图像分辨力,或者可以用较小的信号带宽和目标总转角获得相同质量的图像。
短句来源
  “equal-quality”译为未确定词的双语例句
     AN APPROXIMATE ANALYTICAL METHOD OF DETERMINING SELFWEIGHT STRESS FIELDS IN THE EQUAL-QUALITY SOIL SLOPES
     均质土坡自重应力场的近似解析解法
短句来源
     2. Algorithm for Equal-Quality FGS Video Streaming Fine-Granularity-Scalability(FGS),which can provide flexibility and good performancefor video streaming, has been accepted in MPEG-4 and H.26L.
     26L等标准所采用。 FGS一个突出的特点是可以随意裁减以适应网络带宽的变化,但是简单的裁减方法容易造成连续图象质量抖动过大,而用户通常希望图象质量尽可能的平滑。
短句来源
     definite spatial order, the equal-quality of interior space, etc.
     明确的空间序列及室内空间的均质性等。
短句来源
     The results show that,for the four equal-quality explosives,surface temperature,the time of high temperature (≥1000℃)and temperature field effects of the DEFAE is highest,longest and best.
     结果表明,DEFAE表面温度最高,高温(≥1000℃)持续的时间也最长; DEFAE的温度场效应要比SEFAE、TNT高;
短句来源
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This paper puts forward an approximate analytical method for determining the self-weight stress fields in the equal-quality soil, and in calculating the approximate values of the stress fields.

本文提出了一种对均质土坡自重应力场的近似解析解法,并以此进行了近似计算,在此基础上,还对此进行了较详尽的分析,这对研究土坡的破裂和滑动规律具有一定的理论和实际意义。

A dynamic optimization approach for superresolution range-doppler imaging is proposed in this paper. The basic idea of this approach is that it uses the regularized image reconstruction approach and the dynamic optimization algorithm to find out the least squares estimate of reflectivity of the radar target. The computing efficiency of the dynamic optimization algorithm ss greatly improved by using the FFT. The live data of a metalized scale model B-52 aircraft mounted on a rotating platform in a microwave chamber...

A dynamic optimization approach for superresolution range-doppler imaging is proposed in this paper. The basic idea of this approach is that it uses the regularized image reconstruction approach and the dynamic optimization algorithm to find out the least squares estimate of reflectivity of the radar target. The computing efficiency of the dynamic optimization algorithm ss greatly improved by using the FFT. The live data of a metalized scale model B-52 aircraft mounted on a rotating platform in a microwave chamber and a flying Boeing-727 air-craft were processed by the use of the superresolution imaging approach. Comparisons of imaging results with FFT-RD approach are given and show that, by the use of the superresolution approach, either higher resolution images for the same effective bandwidth of transmitted signals and total rotation angle in imaging or equal quality images from small bandwidth and total rotation angle may be obtained. We have found that the dynamic optimization approach is hopeful to be able to provide even better resolution performance if more a priori information about the image region is utilized sufficiently.

提出了超分辨距离多普勒成像的动态优化方法,基本思想是利用正则化图像重建方法及动态优化算法求出雷达目标反射率的最小二乘估计。还利用FFT大大提高了动态优化算法的计算效率。用B-52飞机缩比金属模型微波暗室转台实验数据和Boeing-727飞机外场实测数据进行成像的初步结果表明,采用超分辨成像方法可以获得更高的图像分辨力;或用较小的信号带宽和成像总转角,可以获得相同质量的图像。进一步研究发现,如果能充分利用成像区域中更多的先验信息,动态优化方法可望能提供更好的分辨性能。

The range resolution and the cross-range resolution of range-Doppler imaging radars are related to the effective bandwidth of transmitted signal and the angle through which the object rotates the relatively to the radar line of sight (RLOS) during the coherent processing time,respectively. In this paper,the superresolution imaging method of the linear prediction data extrapolation and discrete Fourier transform (LPDEDFT) is investigated for the purpose of surpassing the limitation imposed by the conventional...

The range resolution and the cross-range resolution of range-Doppler imaging radars are related to the effective bandwidth of transmitted signal and the angle through which the object rotates the relatively to the radar line of sight (RLOS) during the coherent processing time,respectively. In this paper,the superresolution imaging method of the linear prediction data extrapolation and discrete Fourier transform (LPDEDFT) is investigated for the purpose of surpassing the limitation imposed by the conventional FFT range-Doppler processing and improving the resolution capability of range-Doppler imaging radar. The LPDEDFT supererresolution imaging method,which is conceptually and computationally simple,consists of extrapolating observed data beyond the observation window by means of linear prediction,and then performing the conventional IDFT of the extrapolated data. The live data of a metalized scale model B-52 aircraft mounted on a rotating platform in a microwave anechoic chamber and a flying Boeing-727 aircraft are processed. It is concluded that,compared to the conventional Fourier method,either higher resolution for the same effective bandwidth of transmitted signals and total rotation angle of the object or equal-quality images from smaller bandwidth and total angle may be obtained by LPDEDFT.

距离—多普勒成像雷达的距离分辨力和横分辨力分别取决于发射信号的有效带宽和目标相对于雷达视线(RLOS)在相于处理区间内的转角。本文研究线性预测数据外推离散傅里叶变换(LPDEDFT)超分辨成像方法,旨在突破普通的FFT距离多普勒处理的限制,提高距离—多普勒成像雷达的分辨力。LPDEDFT在概念上和计算上都比较简单,分两步进行,先用线性预测方法把观测数据外推到观测窗之外,然后对外推过的数据进行普通的离散傅里叶变换。文中给出了B—52飞机缩比金属模型微波暗室转台实测数据和飞行中的Boeing-727飞机外场实测数据的成像结果。LPDEDFT与普通的傅里叶方法相比,在相同信号带宽和目标总转角的条件下可以得到更高的图像分辨力,或者可以用较小的信号带宽和目标总转角获得相同质量的图像。

 
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