... quadrature spectrum正交谱, 转象谱 high-order spectrum高阶谱 bretschneider spectrumn.布雷特施奈德波谱 ...
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high order spectrum 互高阶谱
cross-high-order spectrum 互高阶谱
high-order spectrum estimation 高阶谱估计
high order spectrum analysis method 高级次谱线分析方法
high order Tyndall spectrum 高级丁铎尔谱
The encoder firstly used the adaptive quad-tree partition to obtain range blocks, secondly computed the high-order spectrum of the image block which size was larger than 4×4.
即采用自适应四叉树对图像进行分块得到range blocks(定义域块),对尺寸大于4×4的图像块编码将利用图像块的高阶谱提取构成该图像块的特征向量。
参考来源 - 基于高阶谱特征的图像分形编码The diagonal slices high-order spectrum of the envelope signal based on the original vibration signal was calculated and the non-linear feature derived from the quadratic phase coupling was extracted.
该方法利用希尔伯特变换构造原始信号的解析信号,在高阶谱分析的基础上求其对角切片谱,可以有效地分析二次相位耦合引起的非线性信号。
参考来源 - 一种基于对角切片高阶谱的故障识别方法·2,447,543篇论文数据，部分数据来源于NoteExpress
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