Adaptive Back-Propagation algorithm with magnified error signals;
一種基于放大誤差信號的自適應(yīng)BP算法
Back-propagation algorithm based on enlarging error signals;
基于放大誤差信號的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.
該算法利用誤差信號的相關(guān)值去調(diào)節(jié)步長,解決了算法收斂時間與穩(wěn)態(tài)誤差間的矛盾,為實際應(yīng)用提供了更大的靈活性。
This model is used to generate a residual signal by comparing the healthy signal and the signal in the running system.
利用這個模型,通過比較健康信號和系統(tǒng)實際產(chǎn)生的信號,產(chǎn)生一個殘差信號,并對殘差信號進(jìn)行適當(dāng)處理,從初始故障到嚴(yán)重故障,可以有效地得到監(jiān)測。
A new residual signal spectrum analysis and statistics analysis method is proposed after wave- let packet denosing.
在小波包降噪的基礎(chǔ)上,提出了一種對小波包降噪后的殘差信號進(jìn)行頻譜分析和統(tǒng)計分析的新方法,該方法首先對原始振動信號進(jìn)行小波包降噪,然后根據(jù)降噪后的振動信號和原始振動相比的差值提取殘差信號,最后通過對殘差信號進(jìn)行頻譜分析提取產(chǎn)生噪聲信號的特征頻率,通過對殘差信號的統(tǒng)計量分析判斷設(shè)備運行狀況。
An polarization matching experiment on pulsed CO 2 laser heterodyne signal is designed.
設(shè)計了一個CO2 激光脈沖外差中的脈沖信號光和連續(xù)本振光偏振匹配研究實驗 ,從理論和實驗上 ,分析了偏振態(tài)匹配程度對脈沖外差信號的影響 ,當(dāng)兩束光嚴(yán)重失配時 ,不僅降低脈沖外差效率 ,而且還將導(dǎo)致激光脈沖畸變 ,產(chǎn)生很強(qiáng)的連續(xù)波外差背景噪聲 ,抑制脈寬內(nèi)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.
用插值法對彩色電視廣播測試圖中的色差信號進(jìn)行定量研究,可以同時得到色差信號的相位和模。