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背景杂波
相关语句
  background clutter
     The third part is to suppress the background clutter and enhance the target by the methods of frame subtraction and background prediction on the basis of the analysis of the spatial and temporal property of the target and the background, to eliminate the remanent Gaussian noises using higher-order cumulant, and to accomplish the detection and recognition of pulse spectral signal.
     完成光谱信号的采集之后,在对目标信号和背景杂波的时间和空间特性进行分析的基础上,采用帧减法和背景预测法对背景杂波进行抑制、增强目标,然后利用高阶累积量进一步消除杂波抑制后的剩余噪声,将目标信号从背景杂波及系统噪声中提取出来,完成对脉冲光谱信号的检测与识别。
短句来源
     MODIFICATION OF THE BACKGROUND CLUTTER ON CLASSICAL HUMAN-EYE TARGET ACQUISITION PERFORMANCE MODEL
     背景杂波对经典人眼目标获取性能模型的修正
短句来源
     The experiment results indicate that wavelet transform can enhance the target and suppress background clutter effectively, and improve the target detection probability and reduce the detection error.
     实验结果表明 ,小波变换能很好地增强目标 ,抑制背景杂波 ,从而提高目标检测概率 ,降低误检测
短句来源
     Weak and Small Target Detection Based on Adaptive Predictions of IR Background Clutter
     基于背景杂波自适应预测的红外弱小目标检测
短句来源
     Because there is speckle noise in SAR image and the background clutter of water is usually very complex, weak target detection is a big challenge for conventional methods.
     SAR图像存在相干噪声以及水面背景杂波的复杂性,传统方法对于弱目标检测存在困难。
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  “背景杂波”译为未确定词的双语例句
     The Background Noise Simulating System for Radio Fuze
     无线电引信背景杂波模拟系统
短句来源
     A Curvelet Transform Based on Clutter SuppressionAlgorithm for Infrared Image
     基于Curvelet变换的红外图像背景杂波抑制算法
短句来源
     Three-Dimensional Interferometric Imaging of a Moving Ground Target in Strong Background Clutters
     强背景杂波下的地面运动目标干涉式三维成像
短句来源
     Because of difficulties of dim target detection and identifying, and there are background clutters and noise interfering, the dim target is easy to be masked.
     由于微弱目标本身就很难以检测和识别,再加上图像背景杂波以及噪声的干扰,很容易将微弱目标掩盖掉,所以在进行目标检测之前需要进行背景杂波估计与抑制,事实证明这样的过程是必要、可行的。
短句来源
     The target detection of SARs refers to the detection of targets from background clutters and jamming in SAR images. The detection probability is an important index to evaluate the target detection capability of SARs.
     SAR的目标检测是指从SAR图像的背景杂波和干扰中检测目标,检测概率是衡量SAR目标检测能力的重要指标。
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  相似匹配句对
     Background:The incidence of gastric cancer has increased rapidly.
     背景:
短句来源
     Background:Atherosclerosis is considered as an immuno-inflammatory disease.
     背景
短句来源
     The Background Noise Simulating System for Radio Fuze
     无线电引信背景杂波模拟系统
短句来源
     Target Detection in Sea Clutter
     海杂波背景下的目标检测
短句来源
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  background clutter
Based on the researches of multi-information fusion, some simulations, identification, and information extractions of the targets from complex background clutter scenes are studied.
      
In radar systems of automatic detection, an estimate of background clutter power is used to set the detection threshold.
      
By simulating different background clutter and noise, the performances of the phase threshold and dual-threshold methods are discussed in detail, and then the adaptive-threshold method is proposed which can greatly improve the detection performance.
      
Experimental results indicate that stop signs are successfully distinguished from other traffic sighs and background clutter.
      
Most previous solutions to this problem are based on intensity images and, as a result, suffer from a host of problems including sensitivity to background clutter and lighting variations.
      
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By using matched spatial filtering technique, small targets are detected against the complicated IR clutter background containing sea area. By means of computer simulation, the filter design parameters are obtained. After filtering, the signalto-clutter ratio gain is boosted markedly and the false alarm probability is decreased accordingly; the filter's hardware can be realized easily. This proves to be an effective technique to reject IR background clutter.

利用空间匹配滤波技术,针对海域复杂的红外杂波背景进行了小目标探测.由计算机模拟获得了滤波器设计参数,结果表明滤波后信杂比增益有显著提高,虚警率随之下降,滤波算法硬件易于实现,证明这是一种抑制红外背景杂波的有效技术.

Mehtods of target detection method in IR warning systems are described. Because of the background clutter, only one approach is usually not powerful enough to detect targets. The most effective method is the one that takes spatial, spectral and temporal features into account to extinct the clutters and get clear target signals.

讨论了红外警戒系统目标识别的方法。由于目标和背景杂波在特征上既有区别又有相似之处,采用单一的识别手段无法达到满意的性能,只有在空间、时间和光谱域内采用多种手段,才能逐渐排除杂波,获取真正的威胁目标。

The effective detection and acquisition of the point and quasi-pointsource IR-targets at long range are dependent greatly on the rejection of back-ground clutter.Many filtering techniques have been developed After brief re-viewing the main filtering characteristics,a new convolution subtraction filtering technique(CSF) is suggested. As result of analysis and simulation of CSF's mathematic and physical model, it has been shown that CSF is a linear techniqueto reject the background clutter effectively and can...

The effective detection and acquisition of the point and quasi-pointsource IR-targets at long range are dependent greatly on the rejection of back-ground clutter.Many filtering techniques have been developed After brief re-viewing the main filtering characteristics,a new convolution subtraction filtering technique(CSF) is suggested. As result of analysis and simulation of CSF's mathematic and physical model, it has been shown that CSF is a linear techniqueto reject the background clutter effectively and can be realized easily with hard ware.

远距离下点与近点源红外目标的有效探测与捕获,很大程度上依赖于对背景杂波的抑制,诸多滤波技术已经提出。本文在简述了主要滤波技术的特点后,提出一种新的卷积减法滤波算法(ConvolutionSubtractionFiltering),数理模型分析与计算机模拟的结果说明:这是一种易于硬件实现,能有效抑制背景杂波的线性技术。

 
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