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on wavelet discrete wavelet transform (DWT) to removing ground clutter from wind profiler data, it is difficult to determine the best decomposition level and the threshold, and the DWT has..., and select the threshold through the average of the two bands which are adjacent to the clutter band. The new methods can be applied to lower signal to clutter ratio (SCR) whose calculation amount......
landform tailings dam disaster appraisal and setting of safety monitor threshold HE Yue-guang1, YANG Xiao-li2, HE Ji-shan3 (1. School of Highway Engineering, Changsha University... threshold should include the survey error, the shape of distortion trend line, the latent slide and destruction pattern, and the present monitor threshold is that the subsidence of dams is 10 mm per season......
uniformity. Adaptive classification method based on Bayes atrophy threshold was proposed to eliminate noise, preserve strong edges, and enhance weak edges of band-pass sub-band images. Experiment shows... for extracting foamy morphological flotation froth and analyzing grade.Key words:froth image; image enhancement; nonsubsampled contourlet transform (NSCT); Retinex algorithm; threshold......
such as fluid potential, porosity and permeability, spatial coefficient of effective pathway as well as activity rate of fault. Additionally, a new concept of "transporting threshold porosity...-efficient carrier beds and E1f traps of northern shanian area are predicted to have great potential.Key words:effective carrier system; transporting threshold porosity of carrier beds; fluid potential......
component was de-noised by wavelet threshold de-noising method and de-noising ECG was obtained by rebuilding de-noised orthogonal-components. The results show that the proposed method can avoid the inconsistency of threshold choosing, which is caused by noise uneven distribution, the proposed method can de-noise thoroughly in big noise part and completely preserve the features of ECG in small noise......
and the maximum principle, three-dimensional threshold was selected, and the images were disposed. Nice groups of blasting fragment photos were selected for analysis by OTSU method, traditional method and 3DFR... of the underground mine and provides guidance for optimization of blasting parameters of the underground mine. Key words: blasting fragmentation; 3DFR algorithm; image segmentation; optimal threshold 随着社会的发展......
坡的理论阈值区.模拟实验结果表明:在外电场激发下,"滑带层"动态含水量?Ws与"滑带层"复阻抗?Zs以及现场静摩擦因数μ具有鲜明的拟合性,且它们在时间域上均具有阈值特性.使用该方法能将不变系统内的多参数有效拟合,可以为暴雨型山体滑坡阈值报警技术的研究提供一种可探讨的新途径.关键词:暴雨型滑坡;复阻抗;动态含水量;静摩擦因数;阈值报警Reactance threshold value method... reactance threshold value method was discussed. The dynamic water content of sliding layer ?Ws is transformed to complex impedance ?Zs which reflects the transmission function of geodetic system based......
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detected 20 times, respectively. The results show that the algorithm is right from fact that the first clustering values of the uneven are all less than the threshold value of 60.0% that is obtained... of the micro-terrain. Key words: underwater micro-terrain; ultrasonic detection; single beam; exceptional elevation values; threshold value; dynamic clustering  ......
Trans. Nonferrous Met. Soc. China 28(2018) 2075-2081 Experimental determination of threshold pressure and permeability based on equation-solving method for liquid metal infiltration processes Ji-ming... key parameters (threshold pressure and permeability) for fabricating metal matrix composites was proposed based on the equation-solving method. An infiltration experimental device was devised......