backward gain 中文意思是什麼
backward gain
解釋
反向增益-
The result shows that the pbg structure has obvious character of forbidden band at the suitable size, and can be designed to good performance microwave filter. the pbg structure have the character of high resistance, that can reinforce the forward radiation, and reduce the backward radiation, increase the directivity, improve the gain and ameliorate the performance of the antenna. in addition, the pbg structure can also greatly increase the isolation and significantly decrease the coupling between the antenna elements
研究結果表面，取合適的尺寸時， pbg結構具有明顯的禁帶特性，可以設計成性能良好的微波濾波器； pbg結構具有高阻特性，把這種特性用於微波天線時， pbg結構可以加強前向輻射，減小後向輻射，增大天線的方向性系數，從而提高天線的增益，改善天線的性能，另外， pbg結構還可以大大提高天線單元之間的隔離度，顯著減小天線單元間的耦合。 -
The results indicate that compared with the antenna without reflecting structure, the proposed antenna achieves broader impedance bandwidth, increases the forward radiation gain and has stronger backward radiation suppression
結果表明，與沒有地平面反射結構的天線相比，該印製偶極子天線增加了抗帶寬，提高了前向輻射增益，抑制了後向輻射。 -
Chinese insurance funds application existence policy factor the systematicness risk that caused, surely capital investment management pattern is backward, the structure of insurance funds application is not reasonable, capital is low with rate and investment gain rate, etc
中國保險資金運用存在政策性因素導致的系統性風險，保險資金投資管理模式落後，保險資金的運用結構不合理，資金運用率和投資收益率低下等問題。 -
For example, the information gain of 1x forward and backward whirls is high for detecting rotor imbalance and the gains of 1x, 2x and 3x forward and backward whirls are high for detecting stator / rotor rub
使用該方法發現，轉子振動的一、二、三階正進動和反進動量對于不平衡和碰摩故障的信息增益最大。 -
Study on the gain of backward - pumped raman fiber amplifier
反向抽運喇曼光纖放大器開關增益特性研究 -
Gain characteristic study of amplified backward spontaneous raman scattering in the g652 fiber
塑料光纖拉曼散射的研究 -
Secondly, novel genetic algorithm is developed to optimize the wavelength and power value of the pumping sources in the mutli - wavelength backward pumping fra to get the best gain flatness
第二設計新型的遺傳演算法，結合前面提到的多維并行打靶法來優化多波長後向泵浦fra各個泵浦光的波長、功率值，以得到更好的增益平坦度。 -
The average gain and nf are 22. 22db and 8. 69db respectively. gain flatness under single and double lasers control are 0. 69db and 1. 51db. a gain - clamped dual - stage l - band edfa by utilizing backward c - band ase as control light is presented for the first time
2 .我們還提出了一種優化反射式edfa噪聲性能的方案，通過利用高雙折射環鏡代替普通光纖環鏡來抑制鉺纖的前向ase ，雙通放大器在1580 . 84nm ~ 1588 . 48nm范圍內的平均噪聲系數減少了3 . 7db 。 -
Gain character of amplified backward spontaneous raman scattering in the dcf fiber
652光纖中背向自發拉曼散射的增益特性 -
To be recycled, the backward ase was routed to the input of edf by an optical circulator. this method is much use for reference to enhance the gain of l - edfa in broadband link
這種利用光環形器將後向的ase再引入鉺光纖的前端，重復利用ase的方法對超寬帶連接中提高l -波段摻鉺光纖放大器的增益也有借鑒價值。
分享友人