Adaptive Back-Propagation algorithm with magnified error signals;
一種基于放大誤差信號(hào)的自適應(yīng)BP算法
Back-propagation algorithm based on enlarging error signals;
基于放大誤差信號(hào)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(hào)的相關(guān)值去調(diào)節(jié)步長(zhǎng),解決了算法收斂時(shí)間與穩(wěn)態(tài)誤差間的矛盾,為實(shí)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(gè)模型，通過比較健康信號(hào)和系統(tǒng)實(shí)際產(chǎn)生的信號(hào)，產(chǎn)生一個(gè)殘差信號(hào)，并對(duì)殘差信號(hào)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(cè)。
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(duì)小波包降噪后的殘差信號(hào)進(jìn)行頻譜分析和統(tǒng)計(jì)分析的新方法,該方法首先對(duì)原始振動(dòng)信號(hào)進(jìn)行小波包降噪,然后根據(jù)降噪后的振動(dòng)信號(hào)和原始振動(dòng)相比的差值提取殘差信號(hào),最后通過對(duì)殘差信號(hào)進(jìn)行頻譜分析提取產(chǎn)生噪聲信號(hào)的特征頻率,通過對(duì)殘差信號(hào)的統(tǒng)計(jì)量分析判斷設(shè)備運(yùn)行狀況。
An polarization matching experiment on pulsed CO 2 laser heterodyne signal is designed.
設(shè)計(jì)了一個(gè)CO2 激光脈沖外差中的脈沖信號(hào)光和連續(xù)本振光偏振匹配研究實(shí)驗(yàn) ,從理論和實(shí)驗(yàn)上 ,分析了偏振態(tài)匹配程度對(duì)脈沖外差信號(hào)的影響 ,當(dāng)兩束光嚴(yán)重失配時(shí) ,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(duì)彩色電視廣播測(cè)試圖中的色差信號(hào)進(jìn)行定量研究，可以同時(shí)得到色差信號(hào)的相位和模。