The fractal dimension algorithm using quartile deviation on non-stationary and nonlinear signals is introduced.
介绍了用于非平稳、非线性信号的四分位偏差分形维算法,并通过仿真实例验证了此计算方法的准确性。
Against the shortcomings of quartile deviation fractal dimension(QDFD),which is sensitive to signal amplitude and distribution,an improved algorithm that can be used in failure recognition was introduced.
针对四分位偏差分形维对信号幅值大小和分布敏感的缺点,提出了适用于故障识别的四分位偏差分形维改进算法,将四分位偏差分形维及其截距组成特征向量,应用高斯混合模型进行故障模式描述(QDFD-GMM),并采用贝叶斯分类器进行故障识别。
This paper mainly deals with the technology of 4 Phases Difference Shift-Keying(4DPSK)and the method of using the SystemView.
本文主要研究四进制差分相位键控(4DPSK)技术和其在通信仿真软件SystemView下的仿真方法。