穩定鎖模 的英文怎麼說
中文拼音 [wěndìngsuǒmó]
穩定鎖模
英文
stable mode-locking- 穩 : 形容詞1 (穩定; 穩當) steady; stable; firm 2 (穩重) steady; staid; sedate 3 (穩妥) sure; rel...
- 定 : Ⅰ形容詞1 (平靜; 穩定) calm; stable 2 (已經確定的; 不改變的) fixed; settled; established Ⅱ動詞...
- 鎖 : Ⅰ名詞1 (安在開合處使人不能隨便打開的器具) lock 2 (姓氏) a surname Ⅱ動詞1 (上鎖) lock up 2 ...
- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 穩定 : 1 (使穩定) stabilize; steady 2 (穩固安定) stable; steady 3 (物質的性能不易改變的作用) stabi...
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It is discoverde that with a looped feedback circuit, the dds acousto - optic mode locking has the function of tracking the frequency interval of the laser resonator longitudinal mode, and stabilizing the quality of the laser beams
Dds聲光鎖模器在增加閉環反饋環路后,可以跟蹤激光諧振腔縱模頻率間隔變化,穩定激光光束輸出質量。Further investigated and analyzed composition structure and flow data that dsa ' s formation of image is systematic at first in this paper, carried on intact summing up to the data in the system, having given out the plan of design of high speed and large capacity data channel of digital formation of image system of x - ray ; deeper discussion of control way on sdram, give solution that many pieces of sdram works togetherses of realizing heavy capacity, designing of heavy capacity deposit board realize storing at a high speed to vision data by frame on the basis of this ; through further investigations of interface of pci bus, optimize back end state machine design and urge procedure making with lower, giving intact pci interface scheme that realize high speed dma data transmission and satisfy request of video transmitting ; further investigate the figure systematic design method of programmable logic devices, due to the difficult point of drifting about of enabled signal in fifo in common use and setting up and keeping of output signal, method has been proposed of improving stability of system making use of signal utilizing the phase locking ring in fpga to offer a lot of clocks to move thus realize coordinating the data between every module of system to transmit at a high speed by making use of fifo
本文首先對數字減影血管造影( dsa )成像系統的組成結構和數據流向進行了深入研究和分析,並對系統中的數據流向進行了完整的歸納和總結,給出了x線數字成像系統中的高速大容量數據通道的設計方案;在對sdram的控制方式做了深入探討后,給出了實現大容量多條sdram共同工作的解決方案,在此基礎上設計了大容量幀存板實現對圖象數據進行高速存儲;通過對pci總線介面的深入研究,優化後端狀態機設計和低層驅動程序開發,給出了完整的pci介面方案實現高速dma數據傳輸,完全可以滿足視頻傳輸要求;深入研究了基於大規模可編程器件的數字系統設計方法,針對通用fifo使能信號漂移、輸出數據難于建立和保持等設計難點,提出了利用fpga中的鎖相環提供多個時鐘相移的信號來提高系統穩定性的解決方案,從而實現利用fifo來協調系統各模塊之間的數據高速傳輸。This paper has launched exhaustive analysis and study to every module of pll and its key part ( vco ) is also improved. the history of phase - locked technology and the actuality of research on it are introduced. and then beginning with the fundamental principles of a phase - locked system, we build the mathematical model based on the architecture of the traditional analog pll, and afterwards investigate some of its characters such as tracking, acquisition, noising, and stability
本文在對鎖相技術的發展歷史和研究現狀調查研究的基礎上,從鎖相系統的工作原理入手,分析了鎖相環的數學模型,並以此為出發點對其跟蹤性能、捕獲性能、穩定性及噪聲性能等性能進行了較為深入的研究,對環路的各項參數指標進行了詳細的推導,得出了鎖相環數理分析的普遍結論。Stability of passively modelocked femtosecond fiber laser
飛秒被動鎖模光纖激光器的穩定性研究Topics covered include : properties and advantages of feedback systems, time - domain and frequency - domain performance measures, stability and degree of stability, root locus method, nyquist criterion, frequency - domain design, compensation techniques, application to a wide variety of physical systems, internal and external compensation of operational amplifiers, modelling and compensation of power coverter systems and phase lock loops
所涉及的主題包括:反饋系統的特性和優勢,時域和頻域性能度量,穩定和穩定度,根軌跡法,奈魁斯特準則,頻域設計,補償技術,種類繁多的物理系統應用,運算放大器的內部和外部補償,能量轉換系統的建模和補償,以及鎖相環。The stress condition ; overall stability ; effect of filling gravels into the hole of the block of the precast concrete interlocking blocks in the water flow during the flood period as well as the resistance parameters of the blocks are studied through experimental simulation ; in which a comprehensive analysis is made on the mechanical stability and the anti - erosion properties of the blocks, and then the requirement and the safety degree of the gravel filling are given
摘要通過試驗模擬研究了預制混凝土連鎖塊在洪水期水流中的受力狀況、整體穩定性、孔內填充碎石的作用及連鎖塊阻力參數,綜合分析了連鎖塊結構的力學穩定性和抗沖性,給出了碎石填充的要求及安全度。According to the practical geological model of slope, by means of the finite element analysis, from the constitutive equations of the elastoplasticity and the viscoelasticity - viscoplasticity, the process and mechanism for progressive failure of the locked segment of rockmass are quantitatively revealed and simulated during the rupture, deformation, destruction, and failure of highsteep slope rockmass, and the dynamics driving the motion of rocky landslide with violent starting velocity by high pressure water flow is dealed with
根據邊坡實際地質模型,基於彈塑性與粘彈-粘塑性理論的本構方程,通過有限元模擬分析,定量地揭示和模擬再現了高邊坡巖體破裂、變形、破壞及失穩前後鎖固段巖體漸進性破壞的機制和過程,探討了高壓水流作用下滑坡啟程劇動的破壞機理。Using fiber grating to substitute traditional wavelength - selecting components, the 8nm tuning range is realized at a repetition frequency of 2. 5ghz. ( 5 ). the wavelength - tuning methods of an active mode - locked fiber laser using a ld as a modulator are researched, and two tuning methods including temperature tuning
( 4 )對主動鎖模光纖激光器的波長調節技術進行了研究,用光纖光柵代替傳統的波長選擇器件實現了主動鎖模光纖激光器的波長調諧,並獲得了波長連續調諧范圍達8nm 、重復頻率2 . 5ghz的穩定的光脈沖輸出。The actively mode - locked erbium doped fiber laser is very attractive among those potential sources which can generate broadband tunable near transform - limited pulse with high repetition rate and has been used as the ideal optical transmitter and all optical clock source in the future long - distance communication systems
對于高速光纖通信系統而言,能輸出高重復頻率的、近極限超短脈沖的主動鎖模光纖激光器被認為是未來遠程無中繼光纖通信系統的理想光源。但其難點是工作穩定性問題。The prerequisite of actively mode - locked fiber laser stable work is that the modulation signal frequency must be the integral multiple to the cavity resonance frequency
主動鎖模光纖激光器穩定工作的前提條件之一是調制信號頻率應為腔內縱模間隔的整數倍。The former combines enumeration and sample technique and is easy to implement, but only definite failure modes are simulated, which may be inaccuracy with bulk power system in which high order failures and protection failures are the main cause to instability
基於蒙特卡羅抽樣的概率穩定模擬演算法可以考慮電力系統的高重隨機故障,並考慮故障間的相關性。模擬法可以模擬多重、連鎖故障對系統暫態穩定性能的影響。The gear type mould could adjust for ensuring accurate and steady. the incline clamping makes the products release easier and assures longer life clamping
油壓驅動輪調模裝置,調節迅速,鎖模穩定,並能保證頭板和動板的精確度。Frequency source is widely used in today ' s electronic equipment and even refered as " a heart " of many electronic systems. the frequency synthesizer with a lot of channels and high frequency stability by means of theory of phase locking has almost been a necessary component in the modern electronic systems such as telecommunication, radar and electronic countermeasure. the phase - locked frequency synthesizer can be generally divided into two kinds : one is digital phase locked frequency synthesizer, the other is analog sampling phase locked frequency synthesizer. compared with the prior, the latter has many merits such as lower phase noise, samller volume, lighter weight and lower power consumption and has a wide foreground in the equipments of microwave band
利用鎖相原理來獲得波道數目眾多、頻率穩定度很高的頻率合成器,幾乎已成為現代通信、雷達和電子對抗等電子系統不可缺少的組成部分。鎖相式頻率合成器一般分為數字鎖相頻率合成器和模擬取樣鎖相頻率合成器兩類。取樣鎖相頻率合成器與數字鎖相頻率合成器相比,具有相位噪聲低、體積小、重量輕和功耗低等優點,尤其在微波波段的電子設備中,具有廣闊的應用前景。Thus, we have deeply studied the applications of stochastic theory in protein motor and fhn neuron model, and obtained some important results, especially the opposing role of the amplitude and correlation strength in protein transport, the locked phenomenon in fhn neuron model, the dependence of the effect on initial condition, the phase transition and resonance in globally coupled neuron system
為此,我們對隨機理論在生物馬達蛋白和fhn神經模型上的應用進行了較深入的研究,取得了一些有重要意義的成果,特別是發現:漲落勢的幅值和關聯強度對蛋白輸運起著相反的作用;噪聲誘導fhn神經電位的鎖定現象;噪聲關聯導致雙穩系統對初始狀態的記憶功能;噪聲作用下全局耦合fhn神經網路的共振和相變現象。In order to discuss profoundly, main opinions on this topic is listed and their rationality and applicability is discussed, especially on whether it can be used to explain the lock - in phenomenon
總結了國內外現有的冰激結構振動觀點,分別指出其局限性,尤其關注其模型能否解釋穩態振動的產生和鎖定。3. the methods to improve and enhance the performance parameters of frequency synthesizer, such as phase noise and frequency stability, are discussed detailly and deeply through the linear phase model of pll which is using to implement the
3 .利用鎖相環路的線性相位模型,詳細討論了利用鎖相環進行頻率合成時,頻率合成器的主要性能參數如相位噪聲和頻率穩定度的改進方法。The essential theory of analog phase lock loop ( apll ) and digital phase lock loop ( dpll ) are introduced
然後介紹了模擬鎖相環和數字鎖相環技術,並對數字鎖相環的穩定性和穩態誤差性能進行了分析。The harmfulness to the generator stability of water hammer effect is overcome by the gahc. a device used to regulate speed of rotor and simulate governor system on direct current motor was proposed in the thesis based on phase lock loop technology. the model of steam turbine and hydro turbine had been realized in the governor system of simulating generator by the device
研製開發了一套基於鎖相環技術的直流電動機調速與調速系統模擬裝置,利用該裝置在動模發電機的調速系統實現了汽輪機或水輪機模型的模擬,建立了一套結構開放、穩定可靠、使用方便的研究發電機調速系統控制方法的動模實驗系統。The results show that occurrence of the single or double pole block on the dc lines, or short - circuit faults on the dc or ac lines will not influence seriously on power system stability
模擬結果表明:當南橋、華新換流站發生直流輸電單雙極閉鎖以及交、直流側短路故障時,不會給系統帶來穩定問題。分享友人