释义 |
zero-crossing 英'ziərəʊkr'ɒsɪŋ美'ziərəʊkr'ɒsɪŋ BNC¹⁴⁴⁶⁶⁴⁺³ 基本例句 零交点¹⁰⁰ A modulation identification of MPSK signals was provided, which is based on WT zero-crossing feature. 提出了基于小波变换过零特征的 MPSK信号调制类型识别方法。 cnki WT zero-crossing feature of MPSK signal was present in the time- scale spectrum of wavelet coefficients. 给出了 MPSK信号小波变换后在时间-尺度图谱上小波系数的过零特征。 dictall In this paper, combined with the idea of Laser Speckle Velocimetry LSV, experiments are carried out to measure the velocities of nano- particles in directional nanofluids with Zero-Crossing Method. 本文结合激光散斑测速技术 LSV,应用激光散斑过零法对定向流动的纳米流体中纳米粒子的运动状态进行了理论分析及实验研究。 fabiao The paper introduces the definition of wavelet transform and its properties. Especially the philosophy for zero-crossing wavelet and how it can be used in seismic prospecting are presented. 介绍了小波变换的定义及小波变换的性质,特别介绍了零通小波的理论及其如何在地震勘探资料处理中的应用。 cnki |