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将小波配置法与广义能量积分相结合,提出了一种求解非线性偏微分方程的高精度数值方法。
A high accuracy algorithm for numerical solution of nonlinear partial differential equation (PDE) is suggested combining wavelet collocation method with generalized energy integral.
以小波变换为基础,提出了能量阈值法,并结合自适应算术编码方法对扰动数据进行压缩,获得了较好的压缩效果。
This paper proposes an energy threshold method based on wavelet transform and has achieved fairly good compression performance by referring to adaptive arithmetic encoding.
通过对滚动轴承具有外圈缺陷、内圈缺陷的情况下振动信号的分析 ,说明时间 -小波能量谱自相关分析法不仅能检测到滚动轴承故障的存在 ,而且能有效地识别滚动轴承的故障模式。
By analyzing vibration signal of roller bearing with out_race fault or inner_race fault, it is confirmed that the faults can be detected and fault patterns can be ide…
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