shift formulas 中文意思是什麼
shift formulas
解釋
移位公式-
Using the variational method, analytical conditions for stationary pulse propagation in dense period fibers with strong dispersion management are deduced. the expression of initial soliton peak power is given. by employing the obtained formulas, the soliton evolution semi - analytically in various dispersion maps can be investigated. effects of the third order dispersion are also studied in this paper. the results show that imperfect dispersion slope compensation can cause pulse central position shift and even serious degradation of soliton shape
利用變分方法，推導出了在強色散管理的密集周期光纖中脈沖穩態傳輸的解析條件，並給出了初始脈沖峰值功率的表達式.運用這些公式，對各種色散管理系統中孤子的演化進行了半解析的考察.三階色散也被考慮在內.結果表明:不完善的色散斜率補償將導致脈沖中心位置的偏移甚至嚴重的孤子形狀劣化 -
On the following, on the basis of formulas given above, three kinds of effects due to ionosphere are presented : image shift due to group delay which was caused by the difference between the group velocity and the velocity of light in the ionosphere ; image distortion due to ionospheric dispersion which can create second phase error of lfm signals ; the last, the phase perturbation caused by the irregularities of the ionosphere can reduce the coherent length and affect azimuthal resolution
文中主要研究了電離層的三種影響：信號經過電離層傳播的群延遲引起的成像偏移；電離層的色散效應給線性調頻信號帶來二次相位誤差，導致圖像退化、失真；以及電離層的閃爍、湍流等不規則性引起的信號相位起伏。在此基礎上，比較分析了不同波段、帶寬條件下電離層的影響。 -
We analyzed the polarizing character, threshold condition, raman shift of srs in different polarizing pumping light. in addition, the empirical formulas on stimulated raman scattering are given. theoretical analyses and experimental results are in good agreement
對它們在不同偏振態泵浦光激勵下各級stokes的偏振特性、閾值條件、喇曼頻移等各參數進行了分析，並給出了經驗公式，其結果和實驗數據符合良好。
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