logarithmic transformation
英 [ˌlɒgəˈrɪðmɪk ˌtrænsfəˈmeɪʃn]
美 [ˌlɑgəˈrɪðmɪk ˌtrænsfərˈmeɪʃn]
对数变换
双语例句
- Exact logarithmic stretching DMO algorithm is derived via logarithmic transformation on Hale DMO in tx domain by using stationary phase method.
采用固定相位法，通过对数变换从HaleDMO的tx域解析脉冲响应的结果可以导出精确的对数拉伸DMO算法。 - The high frequencies of the joint power spectrum ( JPS) of joint transform correlator ( JTC) can be emphasized by logarithmic transformation of the JPS, and sharp correlation peaks are obtained.
对联合变换相关器的功率谱进行对数变换可强化其高频分量，锐化相关峰，但同时也会增强其噪声成分，影响抗噪性能。 - Problems in the Logarithmic Transformation and Improvements
对数变换的问题及其改进 - The simulation accuracy of fatigue life can be enhanced through a logarithmic transformation.
将疲劳寿命经对数变换后可提高模拟精度。 - Logarithmic Transformation to Joint Power Spectrum can enhance the intensity of high frequency component, improve the modulation degree, weigh down the zero-order diffraction, and increase the recognition efficiency of joint transform correlation system.
为增强联合功率谱的高频成分，改善其调制程度，可对功率谱进行对数变换，从而有效保留更多的高频成份，压低零级衍射光斑，提高联合变换相关器的识别能力。 - In the paper, the logarithmic transformation for the analytic solution on the space-time change of the tracer concentration during the instantaneous injection and the process of the one dimensional steady flow field and two-dimensional unsteady hydrodynamic dispersion is performed, and the linear equations have been obtained.
该文将描述瞬时投放示踪剂、一维稳定流场二维非稳定水动力弥散过程中的示踪剂浓度在时空上变化的解析解进行了对数变换，得到一直线方程。 - In addition, the transformation results of original data, transformation coefficient C_k, number of blocks estimated and estimation variance obtained by logarithmic transformation method and graphical transformation method are compared with each other.
并对对数转换法与图解转换法转换原始数据的结果和转换系数Ch、块段估值及占值方差作了对比。 - The HJB equation associated to the optimal investment problem becomes the semilinear partial differential equation by the logarithmic transformation. The existence of optimal portfolios solution is proved and the value function and optimal strategies are given.
通过对数变换将最优问题的HJB方程转化为半线性偏微分方程，证明了最优投资组合解的存在性，给出了价值函数和最优投资策略。 - The purpose of this study is to evaluate various data processing methods, including logarithmic transformation, robust statistics, excluding outliers and Box-Cox transformation for evaluating soil total P content with normal distribution.
通过对数转化、稳健统计、域法处理和Box-Cox转化4种数据处理方法对土壤全磷进行了正态分布性检验。 - With the logarithmic transformation of the Arrhenius formula, the flow volumes and activation energies of Sn and In-Sn alloys at every temperature zone are calculated. The results show that the flow volumes and activation energies decrease with the increasing temperature.
通过对Arrhenius公式作对数变换，分别计算了Sn及In-Sn合金不同温区的流团体积和黏流激活能，发现熔体的流团体积和黏流激活能均随温度的升高而减小。