amplifier system 中文意思是什麼
amplifier system
解釋
放大器系統-
In audio, a very low frequency oscillation often resulting from a positive feedback path in an amplifier system
在音響設備中出現的振蕩頻率極低的低頻振蕩，常因放大系統的正反饋迴路引起。 -
Test results show that under 2 - tone test in 5mhz tone spacing, the power amplifier system achieves - 50dbc imd3 with 20w output power, improved 20db in imd3 compared with the one without linearity. estimated value of aclr comes to 53db, which satisfies the 3gpp requirement for wcdma base - station transistor. further tests with alterative input power indicate a steady suppression to the imd3 controlled by the adaptive system
測試結果表明，自適應前饋功放系統在雙音輸出功率20w時三階交調系數小於- 50dbc ，鄰通道泄漏抑制比（ aclr ）的估算結果大於53db ，在理論上滿足3gpp對wcdma基站發射機的指標要求。 -
Biology and chemislry etal ln thi s dissertation, the theory of femto - second pulse laser amplifier system using tifsapphire crystal was discussed systematically and many methods were brought fonvard to resoive the probably existed problems in each part of the system base d on the achieved results, experimentai works has further developed
本文系統給出了以鈦寶石晶體做為增益介質和放大介質的飛秒激光脈沖放大系統理論，針對各部分可能出現的問題提出了相應的解決方法，並在此基礎上開展了部分實驗工作。 -
In applications of feed - forward linearization technique, the overall amplifier efficiency is significant concerned. giving mathematical analysis and simulation results, the paper present two practical methods to optimize the efficiency of a feed - forward amplifier system
針對前饋線性化技術應用中倍受關注的系統效率問題進行了數學推導和模擬，提出實踐中提高效率的兩種方法及其適用條件。 -
Feedforward is generally known as the best performing linearization technique for its advantages, such as broadband, stability, etc. this paper introduces the theories of power amplifier nonlinear characters and feedforward technique. according to the rf specifications in 3gpp for wcdma transmitter power amplifier, an adaptive feedforward amplifier system is completed including eda simulation, circuits layout and main mechanical structure design
本文根據3gpp對wcdma發射機功率放大器的射頻指標要求，在對功率放大器的非線性特性和前饋技術的特性進行詳細理論分析的基礎上，結合eda模擬工具，設計了基於自適應前饋的功放系統，並完成了系統的調試和測試。 -
According as the analysis of third - order inter - modulation of high - power amplifiers, an innovative practical method to adjust the feed - forward amplifier system to optimize the performance of feed - forward amplifier system is described. the application of feed - forward linearisation to a 890 - 915mhz amplifier is described
詳細分析了高功率放大器的三階互調產物的特點，並據此創新的提出了調整前饋線性化系統狀態，優化前饋放大器性能的正確方法。 -
In new system the error pa can also amplify the original signal, so the performance of whole amplifier system increases. since rf predistorters used in the new system, the linearity and power efficiency can be enhanced
該技術改變了誤差通路中的信號特性，使誤差放大器也輸出有用信號功率，提高了整個放大系統的性能。 -
The numerical calculation simulation shows that the fgb will change its shape upon propagation. ( 5 ) using the quasi - discrete hankel transform ( qdht ), the fast calculation code simulating the propagation of cylindrical symmetry laser beams passing through high power laser amplifier system is built up for the first time. the code is applied to
（ 3 ）明準訴散漢克爾變換編制寧旋轉對稱光束在高功率激光放大系統中傳輸的快冰汁彝摸擬程序，利用該程序對超高斯光束在多麟光放大系統中的傳輸和神光紅栩櫥化光傳。 -
The ratio of output power from an amplifier system, to the input power. gain is normally measured in decibels
放大系統的輸出功率與輸入功率之比，增益通常用分貝表示。 -
Optimizing 350m trunk communication network used of optical fiber bi - directional amplifier system
利用光纖直放站優化350兆集群通信網路 -
In succession, the theory of chirped - pulse amplifier system is given in detail, firstly, studying from designing experimental light road and optical components to theoretical analysis, we par ' tly finished the system by ourselves. about ultr a - shoft pulse with a pulse - width of 9. 8f s and output power of 650mw and band - width of about l 20nm is output from oscillator source, secondiy, the stretching capacity of single grating four - pass stretcher is measured using abcd matrix combining collins function, and the effect of relativ e parameters to the streching ratio is also simulated. thirdly, a new type of disjunctional frequency moduiating function is provided according to the gain - narrowing and gain - saturation which are appeared in the co urse of amplification, under modulating the two effects are both controlled on some e xtent, fourthiy, the effect of ase that is often ignored by people is analyzed and the resolving methods are also given
從光路、光學元件的自行設計到理論分析計算，初步建立了一臺實驗系統；採用abcd矩陣法結合collins公式計算了四通式單光柵展寬器的展寬量，並模擬了相關參數對展寬比的影響，對實驗具有指導意義；評價了再生放大器和多通放大器的優缺點，對放大過程中通常忽略的放大自發輻射現象（ ase ）進行了分析，並提出了相應的解決方法；針對放大過程中出現的增益窄化和增益飽和現象，對輸入種子脈沖提出了一種新的分段頻率調制函數，實現了對增益窄化效應和增益飽和效應的共同抑制；提出了系統的材料（包括放大介質和光路中的普通介質）正是融合高階色散的來源。 -
Lasar oscillator - amplifier system
激生振蕩放大系統 -
Proof deformable mirror face solution at cavity mirror in four - pass amplifier system
四程放大系統腔鏡位置變形鏡的面形解 -
Experimental research for united new ld - pumped oscillator and multipass amplifier system
泵浦振蕩器與多程放大系統聯機實驗 -
Special amplifier system, magnetic - proof, stereo
特製功放，防磁立體聲。 -
Special amplifier system, magnetic - proof, stereo power source
音響:特製功放，防磁立體聲。 -
The optic - to - optic efficiency of the multi - pass disk amplifier system exceeds 15 %, which was at the same level with the mercury system of lawrence livermore
系統片放級光光效率超過15 % ，與美國利弗莫爾實驗室的mercury系統基本相當。 -
Because of the self - control module, the linearization power amplifier system can work steadily in defiance of the changing of temperature, time, input power etc. it makes the system more practicably and expends the use of linearization system
由於加入自適應控制模塊，射頻電路不受溫度、時漂、輸入功率等的影響，可始終處于較佳工作狀態，這使得整個放大系統更為實用，也更具有拓展價值。 -
We combined the predistortion and feed - forward technologies and added self - reaction control module to build a linear power amplifier system. and it has high efficiency and high linearization
本自適應預失真、前饋控制系統將射頻和自動控制有機結合，達到了高效率、高線性度的目的。 -
And we also provide a detection method whose precision is on the order of micro radians. all of the above is based on technologies on ccd, dsp digital control and digital procession of images. we design a optical amplifier system matching the specified ccd camera, in order to catch qualified laser beam spot images
本論文對光通信精跟蹤的技術進行了論述、分析，在此基礎上提出實現十微弧度跟蹤精度的精跟蹤系統原理樣機的設計方案，及能檢測微弧度量級的檢測方法，這主要基於ccd探測技術、 dsp數字控制技術和數字圖像處理技術。
分享友人