有限时域差分理论 finite difference time domain theory
Since the time-domain theory requires more memory and computation, an efficient B spline based boundary element method is developed firstly.
由于时域理论的计算量和存储量非常庞大，所以本文首先建立和开发了基于B样条的边界元方法。
参考来源 - 非线性波浪与任意三维物体的相互作用·2,447,543篇论文数据，部分数据来源于NoteExpress
因此，时域理论的研究对那些频域理论无法解释和无法处理的问题具有重要的作用。
As for time domain theory, in principle, it can treat the fully non-linear problem and simulate motions of arbitrary bodies.
小波函数是具有时域和频域良好局部化特性的函数，理论上可以用于非整次谐波的检测。
The wavelet function is such a function which possesses good localization characteristics, so theoretically it can be applied to the detection of non-integer harmonics.
分析了一种基于卡尔曼滤波理论的时域递归低通滤波算法。
A time domain recursive low pass filtering algorithm based on Kalman filtering theory is analyzed.
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