二维三阶时间平均矩谱 D third-order time-average moment spectrum
本文研究了在空间相关地面运动数学模型下线性体系振动反应的前三阶谱矩的特点和它们的解析计算方法。
This paper studies the Characteristics of the first three spectral moments for the response of linear systems under the space-interrelated ground motion model and an analytical method.
利用像素邻域的三阶中心矩，可以提取图像边界。
Image edge is detected by the third central moment of its immediate pixel neighborhood.
研究结果表明利用三阶标准矩并结合方差平衡的特征处理技术可有效地实现对目标的识别。
Experiment results show that the order three standard moments with the variance balancing technique can classify aircraft effectively.
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