Adaptive Back-Propagation algorithm with magnified error signals;
一种基于放大误差信号的自适应BP算法
Back-propagation algorithm based on enlarging error signals;
基于放大误差信号的BP算法
The algorithm utilizes the correlation of output error signal to adjust the step size,solves the inconsistency problem of misadjustment and convergence time,and allows more flexibility in using.
该算法利用误差信号的相关值去调节步长,解决了算法收敛时间与稳态误差间的矛盾,为实际应用提供了更大的灵活性。
This model is used to generate a residual signal by comparing the healthy signal and the signal in the running system.
利用这个模型,通过比较健康信号和系统实际产生的信号,产生一个残差信号,并对残差信号进行适当处理,从初始故障到严重故障,可以有效地得到监测。
A new residual signal spectrum analysis and statistics analysis method is proposed after wave- let packet denosing.
在小波包降噪的基础上,提出了一种对小波包降噪后的残差信号进行频谱分析和统计分析的新方法,该方法首先对原始振动信号进行小波包降噪,然后根据降噪后的振动信号和原始振动相比的差值提取残差信号,最后通过对残差信号进行频谱分析提取产生噪声信号的特征频率,通过对残差信号的统计量分析判断设备运行状况。
An polarization matching experiment on pulsed CO 2 laser heterodyne signal is designed.
设计了一个CO2 激光脉冲外差中的脉冲信号光和连续本振光偏振匹配研究实验 ,从理论和实验上 ,分析了偏振态匹配程度对脉冲外差信号的影响 ,当两束光严重失配时 ,不仅降低脉冲外差效率 ,而且还将导致激光脉冲畸变 ,产生很强的连续波外差背景噪声 ,抑制脉宽内外差信
Through size-research of the colour difference signals in colour TV-test illustrating picture, the phase and module of colour difference signals call be obtained simutaniously.
用插值法对彩色电视广播测试图中的色差信号进行定量研究,可以同时得到色差信号的相位和模。
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