The acoustical wave equation is presented a serial spatial and time iterative equations and room acoustics field is simulated using finite difference time domain method.
时域有限差分法将声波基本方程表示为一个时间和空间的迭代方程组，实现对室内声场中低频段的模拟计算。
The spatial field FE discrete method of the virtual work equation and the time field central difference discrete method of the FE equation in the dynamic explicit method are described in detail.
详细分析了动力显式算法中虚功方程的空间域有限元离散方法和有限元方程的时间域中心差分离散方法。
Using by the method of Difference Analyze and the theory of Regression Analyze, the analyzed the spatial characteristic of vegetation change in arid land.
在差值分析和回归理论的支持下，分析了干旱区植被变化的空间特征；
Unsymmetrical weighted spatial smoothing difference (UWSSD) algorithm, a new method for the DOA estimation of coherent sources is proposed.
提出了相干信源DOA估计的非对称加权空间平滑差分(UWSSD)算法。
The road density index analysis has two ways: the post-classification compare method based on spectral-spatial structure and the imagery difference method based on spectral-spatial structure.
道路密度指数分析法有两类方法：基于光谱—空间结构的分类后比较法和基于光谱—空间结构的图像差值法。
To detect small moving targets in complex visible image background clutter, the spatial-temporal difference method is presented.
针对可见光图像背景下的运动小目标检测，提出了一种空时域联合差分的检测方法。
To detect small moving targets in complex visible image background clutter, the spatial-temporal difference method is presented.
针对可见光图像背景下的运动小目标检测，提出了一种空时域联合差分的检测方法。
应用推荐