1) expanded boundary element method
延拓边界元
2) boundary extension
边界延拓
1.
To overcome it, causes leading to boundary effects are analyzed, based on the definition of wavelet and the boundary extension methods in its reconstruction.
依据小波变换的定义和重构过程中所用多种边界延拓的方法,分析了边缘效应产生的原因,据此改进了传统边界延拓方法。
2.
Based on the studying of image properties and 1-D wavelet theory,the authors describe a parasymmetry boundary extension method and realize 2-D discrete wavelet transform by means of 1-D wavelet transform according to correlation of adjacent pixels.
在研究图像信号特征和一维小波变换理论的基础上 ,根据图像信号邻近像素的相关性提出了一种准对称边界延拓方法 ,用一维小波变换实现了二维离散小波变换。
3.
Boundary extension method for data reconstruction based on this filter is also proposed.
同时提出了基于该滤波器进行数据重构时的边界延拓方法。
3) boundary unique continuation
边界惟一延拓性
4) Boundary unique contin-uation
边界唯一延拓性
5) signal extension mode
信号边界延拓模式
1.
The processing gain(PG) improvements for different wavelets with five types of signal extension modes on the boundaries are compared,and then the optimum signal extension modes for different wavelets are obtained.
针对快速傅里叶变换和离散小波变换(FFT-DW T)方法中的小波选取进行讨论,比较了FFT输出信号在不同小波的5种信号边界延拓模式下的处理增益(PG)值,得到了FFT-DW T方法中适应不同小波的最优边界延拓模式,分析了daubech ies,sym lets,co iflets,b iorthogona l,reverseb ior和dm eyer小波在最优延拓模式下的PG值,得到了适应FFT/FFT-DW T的最优小波(H aar小波)。
补充资料：拓边
1.开拓边疆。
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