i=j 时，即 为平方项，i≠j 时为交叉项（cross terms），a 0 ， a i ，b ij 为待求系数， (4) y(x j )：表示第j次设计序列通过模型仿真计算得 到的结果； n d ：表示设计序列组数； ω...
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cross-terms 交叉项
suppressing cross-terms 抑制交叉项
cross-terms interference 交叉项干扰
Cross-terms false spectral energy 交叉项
terms cross 交叉项
cross-multiplying terms 交叉乘积项
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If the cross terms of the spatial frequencies for the unit cell of periodical object are much smaller than the main frequency terms, the restriction of the Angle is not necessary.
当周期物体的单胞空间频率交叉项比主频率项小到可忽略的程度时，角度限制失效。
The present model, as a simplified, practical but precise method, can simulate foundation stiffness matrix including the principal terms and the cross terms. It is worthy of widely application.
该正交三梁模型可准确模拟基础刚度矩阵的各主元素和交叉项，简单实用，便于结构有限元建模，具有推广价值。
Unlike the traditional kernel function methods to suppress cross terms, our method not only reduces the interfering cross-terms but also preserves the superb time-frequency concentration of the WVD.
不同于传统的抑制交叉项的核函数方法，该方法抑制交叉项的同时，保持WVD了高时频聚集性。
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