nonlinear transformation meaning in English
非线性变换
非直线转换
Examples
- Analysis of nonlinear transformation in frequency offset estimation for qam signals
载波频偏估计的非线性变换分析 - The output signal of the filter is obtained as the sum of the input signal and nonlinear transformation of the output of fuzzy reasoning , which is obtained by trained neural network
第三种滤波器是基于神经网络学习的模糊滤波器，传统摸糊滤波器的阈值根据人的经验确定，本文提出通过神经网络来学习以得到最优阈值。 - In this paper , the contrast of original image is enhanced by nonlinear transformation based on the characteristics of grain image ; after comparing several methods of threshold segmentation and analyzing their performance and applicability on grain image , the adaptive threshold segmentation based on gradient image is presented ; the noise of binary image is reduced with morphological filter , the hollow in binary image is filled in and a recognition algorithm is designed to remove agglomerate particle ; on the basis of mathematical morphology two methods are adopted to segment agglomerate grains that are not agglomerated tightly ; the parameters of size and shape , perimeter , area , diameter , complexlity , longest feret diameter , shortest feret diameter etc , are extracted . this technique is applied in measurement of pearl powder ' s particle size
本文根据粒度图像的特点，采用非线性对比度增强处理改善颗粒显微图像的对比度；对多种阈值分割方法进行比较，分析了它们的性能和用于粒度图像的适用性，在此基础上提出了一种基于梯度图像的动态阈值分割方法；对获取的颗粒二值图像进行形态滤波和空洞填充，设计了识别算法去除凝聚体；对重叠不太严重的粘结颗粒采用了两种基于数学形态学的分割算法；提取了周长、面积、粒径、复杂度、最长feret径、最短feret径等大小和形状特征参数，对珍珠粉等粉体粒度进行了测量。 - The last , taking into account of the nonlinear transformation from sphere frame to cartesian frame , maneuvering target tracking is simulated by using current statistical model and converted measurement kalman filter ( cmkf ) without linearization bias in the statistical condition . the paper presents the converted measurement covariance that determines when to use the current measurements vs . the predicted state , and the simulation results are satisfied
最后，针对球坐标系与直角坐标系之间的变换是非线性变换的特点，哈尔滨工程大学博士学位论文运用统计条件下不存在线性化误差的转换测量卡尔曼滤波算法，结合“当前”机动模型对机动目标进行了仿真研究。 - Abstract : the propagation of waves passing over the abrupt changing topograghy can be simplified as a wave passing over a step . this flow process can be reasonably simulated by a 2 - d numerical wave flume developed in this paper , especially for the nonlinear transformation of the wave on the step . numerical results have been verified by experimental data
文摘:波浪在水深剧变地形上的传播，可以简化为波浪在台阶地形上的传播.利用二维数值波浪水槽可以很好地模拟这一过程，特别是对波浪在台阶上的非线性变形.数值计算结果与实验测量进行了比较，结果吻合良好