说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。 您的位置：首页 -> 词典 -> 双线性时间-频率变换 1)  bilinear time-frequency transformation 双线性时间-频率变换 1. According to the principle of kernel function spectral decomposition,the authors express the discrete real kernel as a symmetric matrix,and indicate the discrete bilinear time-frequency transformation as a weighted sum of discrete spectrograms with eigen-decomposition of symmetric matrices. 根据核函数的谱分解理论,把实离散核函数表示为实对称矩阵,利用对称矩阵的特征分解把离散时间双线性时间-频率变换表示为离散时间频谱图的加权和,用频谱图的部分和实现双线性变换的快速近似计算。 2)  bilinear time-frequency transform 双线性时频变换 3)  bilinear time-frequency distribution 双线性时间-频率分布 1. To detect transient signals under complex background,a novel method of aliasing-free exponential bilinear time-frequency distribution is presented in this paper,which can avoid the frequency aliasing and information loss existing in the traditional bilinear distributions,reduce the crossterms effectively and possess high time-frequency resolution. 针对复杂背景条件下瞬时信号的探测,提出一种新的无混叠双线性时间-频率分布方法,该方法能够避免常用的双线性时频分布中的频率混叠与信息丢失,有效减小交叉项干扰,而且具有较高的时频分辨率。 4)  Nonlinear frequency conversion 非线性频率变换 1. Laser technique experiment based on nonlinear frequency conversion 基于非线性频率变换的激光技术实验 5)  time-frequency selective fading 时间-频率双选择性衰落 6)  ultra linear voltage-to-frequency converter 超线性电压-频率变换器 补充资料：频率计量(见时间频率计量) 频率计量(见时间频率计量) frequency metrology: see time and frequency metrology 　　口n IQ liliang顷率频率计皿(f比quency metrolo盯) 计t。见时闰　　 说明：补充资料仅用于学习参考，请勿用于其它任何用途。 参考词条 ©2011 dictall.com