摘要
文中分析了目标辐射声信号关联维估计过程,提出了一种新的无标度区域判定方法。这一方法可以用来方便、快捷地判定关联维计算中的无标度区域,避免了人工判定无标度区域的随意性。研究结果表明,使用该方法可以得到有效的无标度区域,从而获得准确的噪声信号的关联维特征估计。
We studied the procedures of the correlation dimension estimating and proposed a new method(histogram method)for lincar scaling region detecting.By using this new standard method,we can obtain the linear scaling region rapidly and expcdiently and avoid the arbitrariness of manual intervention.The result indicated that the standardized procedures can be used to obtain the linear scaling region efficiently,thus we can compute accurately the correlation di- mension of the radiated acoustic signal.
出处
《弹箭与制导学报》
CSCD
北大核心
2006年第S8期845-847,共3页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
关联维
非线性特征
特征提取
直方图法
corrclation dimension
non-linear feature
features extraction
histogram method
