The Q factor test of transparent optical channel;
透明光通道Q因子的測(cè)量
The shafting stability was judged by adopting Q factor method.
針對(duì)鄒縣發(fā)電廠4期工程1000MW超超臨界汽輪發(fā)電機(jī)組提出了軸系的穩(wěn)定性問(wèn)題,對(duì)軸系設(shè)計(jì)階段軸承的失穩(wěn)轉(zhuǎn)速、比壓和對(duì)數(shù)衰減率,以及軸系的橫振特性和扭振特性等進(jìn)行了分析,采用日立Q因子法對(duì)軸系穩(wěn)定性進(jìn)行了判別,對(duì)氣流激振的原因、防止激振的設(shè)計(jì)準(zhǔn)則和措施以及機(jī)組實(shí)際投運(yùn)的情況進(jìn)行了闡述,同時(shí)介紹了國(guó)際各大制造廠對(duì)汽輪發(fā)電機(jī)組軸系穩(wěn)定性的基本判定依據(jù)。
The simulation results such as Q factor and BER are given and deeply ana-lyzed.
分析了DWDM技術(shù)及系統(tǒng)的設(shè)計(jì)原理,在此基礎(chǔ)上,給出了基于Optisystem的DWDM光傳輸鏈路仿真模型的搭建,對(duì)復(fù)用及解復(fù)用后的光信號(hào)進(jìn)行仿真得出光譜圖,對(duì)鏈路傳輸性能及Q因子、誤碼率、眼圖的等參數(shù)進(jìn)行分析,并驗(yàn)證了波分復(fù)用系統(tǒng)的正確性和設(shè)計(jì)方案的可行性,近而得出相關(guān)結(jié)論。
In this note, the F filters, P filters, Q filters and C filters are discussed in details, their relationships with other filters are studied.
研究 FI代數(shù)的濾子理論 ,建立 F濾子、P濾子、Q濾子、C濾子之間的聯(lián)系。