To understand the frequency and chaotic characteristics of the particle colliding force, the time series of particle colliding force are analyzed by power spectrum analysis and chaotic theory.
通过对颗粒碰撞压力时间序列的功率谱分析和混沌分析，研究了其频域特性和混沌特征。
Sedimentation cycle study method and technology using wavelet time frequency analysis theory is mostly studied and exploited.
重点研究和开发了利用时频分析研究沉积旋回的方法和技术。
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