摘要
采用互高阶累积量 (互四阶累积量 )的一维对角切片为统计量 ,证明了互高阶累积量可以有效地抑制非相关噪声和高斯噪声 ,并在建立互高阶累积量的Yule Walker方程的基础上 ,对离散系统 (AR过程 )的结构进行了分析。结果表明 ,该方法具有良好的谱估计的分辨率和谱估计的稳定性。与其它方法比较 ,该方法抗干扰性更强 ,其信噪比工作门限更低 。
The modern cross high order cumulant(CHOC),such as the cross fourth order cumulant(OFOC),is used to identify the digital system and prove that the CHOC(CFOC)can control the relevant noises and gaussian noises,and based on the cross high order spectral(CHOS)Yule Walker equations,this method can efficiently distinguish the signal buried in the colored noises and have excellent robustness compare with others so that these methods are very suitable to be applied in project.
出处
《东北电力学院学报》
2000年第2期27-33,共7页
Journal of Northeast China Institute of Electric Power Engineering
关键词
互高阶累积量
离散系统
系统辨识
信号处理
cross high order cumulant(CHOC)
cross high order spectrum(CHOS)
hybrid colored noise(HCN)
singular value decomposition(SVD)
