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peak extraction
相关语句
  峰值提取
     Target's Peak Extraction from High-Resolution SAR Image and Peak's Stability Analysis
     高分辨率SAR图像目标峰值提取及峰值稳定性分析
短句来源
     SAR Image′s Peak Extraction and Peak′s Stability Analysis
     SAR图像目标峰值提取及稳定性分析
短句来源
     A Method of Target's Peak Extraction from SAR Imagery in Sub-pixel Accuracy
     一种子像素精度SAR图像目标峰值提取方法
短句来源
     To meet the peak-based SAR image target recognition system's need, the method of target's peak extraction should be fast and accurately enough.
     基于峰值SAR图像目标识别系统要求目标峰值提取方法应具有快速、高精度的特点。
短句来源
     But, the accuracy of the existing method of target peak extraction is comparatively low and the estimation of peak's position can only reach pixel-accuracy.
     现有的SAR图像目标峰值提取方法精度较低 ,其对目标峰值位置的估计精度只能达到像素级。
短句来源
更多       
  峰提取
     The Experimental Research of the Correlation Peak Extraction Technique of Time-integrating Acousto-Optic Correlator
     时间积分声光相关器相关峰提取技术的实验研究
短句来源
     On the basis of Acousto-Optic Correlation technique, aiming at the problem of correlation peak extraction of Time-Integrating Acousto-Optic Correlator (TI AO Correlator), an experimental system design is presented in this paper. The mathematical model is established, the optic system and experimental circuits are designed, and the correlation peak is extracted sucessfully, while 51. 9dB of systemic gain is achieved.
     本文根据声光相关原理,针对时间积分声光相关器的相关峰提取问题,提出了系统实施方案,建立了实验系统的数学模型,设计和制作了系统的光路和电路,最终成功地提取出了相关峰,得到了与理论分析一致的实验结果,使系统增益达到51.9dB.
短句来源
  “peak extraction”译为未确定词的双语例句
     Methods of target's peak extraction and azimuth estimation from SAR imagery
     SAR图像目标峰值特征提取与方位角估计方法研究
短句来源
     Sinc-PSF Model Based Algorithm for Target Scattering Center Peak Extraction
     基于sinc模型的目标散射中心峰值特征提取算法
     Peaks of SAR image corresponding to target′s and(or) background clutter′s scatter center in nature. The method of peak extraction from SAR image is studied in this paper, also the variability of target′s peaks with target orientation and depression angle is analyzed, the results show that the peaks of target in SAR image have some stability with target′s orientation and depression variability.
     SAR图像峰值本质上对应于目标和 (或 )背景杂波的散射中心 ,本文研究了由 SAR图像提取目标峰值的方法 ,分析了目标峰值随目标方位角和仰角的变化 ,结果表明 ,目标 SAR图像峰值在一定的方位角和仰角变化范围内具有一定的“稳定性”。
短句来源
     Target's peak feature is one of the important features for SAR image target recognition. Accordingly,peak extraction is an important process in SAR image target recognition. In order to extract target's peak from SAR image rapidly and accurately,the method of target's peak feature extraction is firstly studied in this paper,a method of target's peak extraction in sub-pixel accuracy is proposed,it's estimation accuracy of peak position and amplitude is analyzed by simulation.
     目标峰值特征是 SAR图像目标识别的重要特征之一 ,峰值特征提取是 SAR图像目标识别的一个重要步骤 ,为了由 SAR图像快速、精确地提取目标峰值特征 ,本文首先研究了 SAR图像目标峰值特征提取方法 ,提出了一种 "子像素 "级精度的 SAR图像目标峰值特征提取方法 ,并通过仿真实验分析了峰值位置、峰值幅度的估计精度。
短句来源
     Through a large number of experiments using real MSTAR SAR target imagery,the validity of methods of peak extraction and azimuth estimation is verified.
     文中通过对大量实测 MSTAR SAR图像目标方位角的估计实验 ,验证了本文目标峰值特征提取及方位角估计方法的有效性。
短句来源
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  peak extraction
Main components of the system are a specially designed bandpass filter bank, a low-pass decimation filter bank, two-dimensional local peak extraction (LPE) filters, and a LPE filter selection circuit.
      
The values corresponded to peak extraction fractions of 0.38, 0.62, and 0.31 for proximal, middle and distal femur, respectively.
      
The mean peak extraction forces for drilling and hammering were 57.4 and 129.0?N, respectively.
      
Peak extraction force, peak torque, and insertion time were measured.
      
The waveform averaging and peak extraction and local interpolation was performed on-line while scanning.
      
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On the basis of Acousto-Optic Correlation technique, aiming at the problem of correlation peak extraction of Time-Integrating Acousto-Optic Correlator (TI AO Correlator), an experimental system design is presented in this paper. The mathematical model is established, the optic system and experimental circuits are designed, and the correlation peak is extracted sucessfully, while 51. 9dB of systemic gain is achieved.

本文根据声光相关原理,针对时间积分声光相关器的相关峰提取问题,提出了系统实施方案,建立了实验系统的数学模型,设计和制作了系统的光路和电路,最终成功地提取出了相关峰,得到了与理论分析一致的实验结果,使系统增益达到51.9dB.

Peaks of SAR image corresponding to target′s and(or) background clutter′s scatter center in nature. The method of peak extraction from SAR image is studied in this paper, also the variability of target′s peaks with target orientation and depression angle is analyzed, the results show that the peaks of target in SAR image have some stability with target′s orientation and depression variability. So it′s feasible to recognize target from SAR image using peak feature.

SAR图像峰值本质上对应于目标和 (或 )背景杂波的散射中心 ,本文研究了由 SAR图像提取目标峰值的方法 ,分析了目标峰值随目标方位角和仰角的变化 ,结果表明 ,目标 SAR图像峰值在一定的方位角和仰角变化范围内具有一定的“稳定性”。这说明 ,利用峰值特征进行 SAR图像目标识别是可行的

Target's peak feature is one of the important features for SAR image target recognition.Accordingly,peak extraction is an important process in SAR image target recognition.In order to extract target's peak from SAR image rapidly and accurately,the method of target's peak feature extraction is firstly studied in this paper,a method of target's peak extraction in sub-pixel accuracy is proposed,it's estimation accuracy of peak position and amplitude is analyzed by simulation.Because...

Target's peak feature is one of the important features for SAR image target recognition.Accordingly,peak extraction is an important process in SAR image target recognition.In order to extract target's peak from SAR image rapidly and accurately,the method of target's peak feature extraction is firstly studied in this paper,a method of target's peak extraction in sub-pixel accuracy is proposed,it's estimation accuracy of peak position and amplitude is analyzed by simulation.Because the high sensitivity of target's SAR image and SAR image's feature with target's orientation change,in order to improve the efficiency of SAR image target classification system,the method of azimuth estimation from SAR image is also studied in this paper.A method of target's azimuth estimation from SAR image using peak feature based on linear regression is proposed,besides goodish estimation accuracy and high computation efficiency,it can also provide the confidence interval of the estimation,which can meet the practical need of SAR ATR system better.Through a large number of experiments using real MSTAR SAR target imagery,the validity of methods of peak extraction and azimuth estimation is verified.

目标峰值特征是 SAR图像目标识别的重要特征之一 ,峰值特征提取是 SAR图像目标识别的一个重要步骤 ,为了由 SAR图像快速、精确地提取目标峰值特征 ,本文首先研究了 SAR图像目标峰值特征提取方法 ,提出了一种 "子像素 "级精度的 SAR图像目标峰值特征提取方法 ,并通过仿真实验分析了峰值位置、峰值幅度的估计精度。由于目标 SAR图像或 SAR图像特征矢量对目标方位角变化的敏感性 ,因此 ,为了提高 SAR图像目标识别系统的分类效率 ,本文还研究了 SAR图像目标方位角估计方法 ,提出了一种利用峰值特征基于线性回归的 SAR目标方位角估计方法 ,和现有方法相比 ,该方法除了计算速度快 ,估计精度较高之外 ,还能在估计方位角的同时 ,给出该估计的置信区间 ,从而更好的满足 SAR ATR的实际需要。文中通过对大量实测 MSTAR SAR图像目标方位角的估计实验 ,验证了本文目标峰值特征提取及方位角估计方法的有效性。

 
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