incoherent system 中文意思是什麼
incoherent system
解釋
非相干系統- incoherent : adj. 支離破碎的，七零八落的，東扯西拉的；不連貫的，前後矛盾的；無條理的，不相干的。adv. -ly
- system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
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Quantum interference occurs in a three - level a system with near - degenerate dipole allowed transitions, which are coupled to the same linearly polarized incoherent field
如，當a型的兩個躍遷與一個線性極化的非相干場進行耦合時，非相干泵浦產生量子干涉。 -
In section one, we analyze the mechanism of lwi gain, and study the effects of the rabi frequency q of the driving field, the injection rates ratio rb / r ~, the exit rate r0, the decay rates ~ and rab between atomic levels, as well as 3 incoherent pump rate r on the gain without inversion, dispersion and population difference of the system. in section two, we discuss the effects of the detuning of the driving field and the probe field on the gain
在第一節中分析了無粒子數反轉激光增益產生的機制、研究了驅動場的rabi頻率、粒子注入速率比值r _ b / r _ c 、粒子退出速率r _ o 、能級間的自發衰減速率r _ （ c - b ） 、 r _ （ a - b ）和非相干泵浦速率r對增益、色散和粒子數差的影響；第二節討論了驅動場和探測場的失諧對無粒子數反轉激光增益的影響。 -
8 finish the experiment on time - spreading incoherent optical cdma system
8 。完成了時域非相干ocdma的實驗系統。 -
At the same time, we will make the experiment research on spread - time incoherent ocdma system
同時，開展了時域非相干ocdma的實驗工作。 -
Nrl - 001 incoherent dual rf hyperthermia system
Nrl - 001型內生場腫瘤熱療系統 -
In chapter 4, we study nonlinear theory of the open v - type system with two - color incoherent pump. in this chapter, we discuss the conditions for the onset of lwi and the stability of the system in the limit of strong driving field, and the effect of incoherent pump rate rt on the gain, dispersion and population differences. we also discuss the effect of nonlinearities and the effect of pumping rate threshold of the pumping field
接著第四章討論雙色非相干泵浦系統的非線性理論，分析了強驅動場情況下的lwi產生的條件和穩定性、非相干泵浦速率r ~ 1對增益、色散和粒子數差的影響；討論了該系統的非線性效應和非線性對非相干泵浦速率r ~ 1與r閾值關系的影響。 -
In this paper, we study inversionless lasing of frequency up - conversion in an open v - type system with incoherent pump. making theoretical analysis and numerical calculation by density - matrix equations of motion, we derive the conditions for the onset of lwi and discuss the effects of the parameters of the system, the detuning of driving field and probe field on the gain, and discuss nonlinear effect in the frequency up - conversion regime. we also give stability and transient analysis
本論文研究了具有非相干泵浦的開放v型系統頻率上轉換無粒子數反轉激光，利用密度矩陣運動方程，通過理論分析和數值計算，得出該系統產生無粒子數反轉激光的條件，討論系統各參數的變化和驅動場與探測場的失諧對激光增益、色散和粒子數差的影響，還討論了頻率上轉換區域的非線性效應，分析了增益的穩定性及系統的瞬態演化過程。 -
In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。 -
Chapter 4 : applying the definitions of the generalized second and fourth order moments, the beam propagation m2 - factor and the kurtosis parameter of coherent and incoherent combinations of two - dimensional off - axis elegant hermite - gaussian ( ehg ) beams are derived analytically and numerically. and the power in bucket ( pib ) is also presented numerically. our results illustrate the propagation properties of the beam through a first - order optical abcd system
第四章：討論了相干和非相干離軸完美厄密高斯（ eleganthermitegaussian （ ehg ） ）光束組的傳輸特性，通過解析推導和數值模擬，研究了相干和非相干的離軸ehg光束組的傳輸，得出並比較了相干和非相干的離軸ehg光束組的光束質量因子、陡峭度和筒內的功率（ powerinbucket ） 。 -
The paper introduces the history of bbadcp, discriminates the different among pulse - incoherent system, pulse - coherent system and pulse - pulse coherent system, analyzes the characteristic of bbadcp " s signal and explains how bbadcp works by reasoning
介紹了bbadcp的研究狀況，比較了幾種測流技術，分析了bbadcp的信號特性，仔細推理了bbadcp的工作原理。採用基帶模擬的方法建立了bbadcp的計算機模型。 -
Two wedge interferometers are designed that the thickness of one is higher than the other. so when the incident coherent light through the interferometers can acquire two fringe patterns which having space shift, but the incident incoherent light only result in consistent intensity signal. through a differentiating amplifier, two signals subtract which can eliminate noise of background and result in higher contrast ratio fringe signals. this method largely improves the system and the ability of detection. the spacing of line fringes is a function of incident laser wavelength, by analyzing, we can extract the wavelength of incident laser. the optical unit analyzing and results also simulated with matlab
當背景光入射時，直接穿過干涉儀，僅發生強度的衰減，在兩個探測平面上產生幅度基本一致的灰度信號，通過差分放大器，相消為零，從而抑制了背景干擾。當激光信號入射，穿過干涉儀時受到調制，在探測平面上產生干涉條紋。通過所設計的存在平均厚度差的雙楔形干涉儀，兩路干涉條紋圖案出現相對移位：在兩個探測平面對應的位置上，一路出現亮紋，另一路出現暗紋。 -
In chapter 2, we use an open v - type three - level system model with incoherent pump put forward by yelin, and give a universal nonlinear analytical solution of the steady state by density - matrix equations of motion
第二章中我們使用了yelin等提出的具有非相干泵浦的開放v型三能級系統模型，通過密度矩陣運動方程給出了該系統的定態非線性解析解的普遍表達式。 -
Construct some two - dimensional time - spreading / frequency - hopping codes based on oocs and prime codes, propose the coders and decoders to implementing them, prove the correlation performance and capacity. 4 study the optical cdma systems. ( a ) analyze the performance of spreading time incoherent ocdma system and scheme to improving the system ' s performance
在ooc （光正交碼）及primecodes （素數碼）的基礎上提出了幾種新的二維光時域頻域組合碼和其實現方案，並對其相關性、容量進行了證明。 -
By numerical calculation of the solution, in chapter 3, we give nonlinear theory of the open v - type system with a monochromatic incoherent pump. the chapter comprises sections of resonant nonlinear theory and off - resonant nonlinear theory
利用解析解的數值計算，第三章討論了單色非相干泵浦系統的非線性理論，包括共振的非線性理論和失諧的非線性理論兩節。
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