接通延時 的英文怎麼說
中文拼音 [jiētōngyánshí]
接通延時
英文
ondelay-
In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab
針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。If consignee ( or insurant ) not seasonable pick up the goods, safe the termination of responsibility period lengthen at most come to be received with consignee " arrival notice is odd " 15 days of in the limit of after ( it is with indicia date accurate )
假如收貨人（或被保險人）未及時提貨，則保險責任的終止期最多延長至以收貨人接到《到貨通知單》后的15天為限（以郵戳日期為準） 。It is hard to get the important parameters such as link delay and loss rate directly, because the internet has becomes massive, distributed and heterogeneous. network tomography is now a hotspot for inference the internal link delay and loss rate with the end - to - end measurement data. we call current network tomography as unconstraint network tomography for its not adding any constraint condition and all of them nearly are based on some likelihood algorithm
由於網路日益向著大型化、異構化、分佈化發展，通過直接進行網路測量的方法，來獲得網路內部鏈路的時延和丟包率參數就變得越來越困難，網路層析成像方法作為一種通過端到端的測量數據來推斷網路鏈路性能參數的技術正成為研究的熱點之一。The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis
本文主要進行雷達波形設計研究以及研究小波理論在超寬帶雷達中的應用，集中體現在以下幾個方面：一類新的組合雷達波形設計及壓縮脈沖時間旁瓣抑制技術研究、超寬帶雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小波（包）方法的時延估計方法。A qos - support protocol, m - dcf, and its schedule model are proposed. by providing different contention window for different classes, the higher class frames the higher access probability. the simulation proves that m - dcf has better performance than dcf protocol on system throughput, discard ratio, frame discard ratio of higher classes, average access delay of different classes
提出了為不同等級幀提供不同競爭窗口的改進型dcf ： m - dcf協議，並給出了m - dcf的調度模型，通過採用不同的競爭窗口，為不同n西安電子科技大學博士學位論文:無線局域網和ip服務質量關鍵技術的研究的應用提供了不同的接入概率，保證了qos ;模擬結果證明了m一dcf在系統吞吐率、丟包率、高等級業務丟包率、不同等級業務的平均接入時延等方面都優于dcf協議。Direct connect vias conduct so much heat away from the pin and into the plane that high temperature or long soldering time may be required to complete the joint - thermal damage could occur to both the board and the component from soldering or desoldering
在焊接時，直接連接的過孔會通過引腳把大量的熱傳導至內電層，因此完成焊接就需要很高的溫度或者延長焊接時間，這就會導致在焊接或拆焊時發生電路板或元件的損壞。Sige simox : oxygen ions with high dose were implanted into sige grown directly on silicon substrate for the first time, and sige - oi novel structure was formed successfully with additional high temperature annealing ; it has been confirmed that oxygen implantation with 45kev, 3 1017cm - 2 and annealing at 12500c in ar + 5 % o2 for 5 hours, are fit for the formation of sige - oi structure ; ge loss during the high temperature annealing has been observed, which is originated from ge volatility and ge diffusion ; it has been proposed to use nanoporous layer induced by h + / he + implantation to surppress ge diffusion and to use surface oxidation to overcome the upper limit of sige simox. sige smart - cut : hydrogen ions were implanted into sige material and followed by high temperature process ( 4000c to 7000c ) ; blistering study was done and suggested the possibility of sige layer transfer by smart - cut technology ; it is concluded that the bubble formation is easier in sige than in si, and the strain in sige / si and the difference of binding energy in sige and in si could possibly contribute to this effect. behavior of sige / si implanted with hydrogen : gave a detailed study on sige implanted by beamline or phi hydrogen implantation ; it has been found that great strain is introduced into sige by hydrogen implantation and this strain could be alleviated by high temperature annealing ; both for conditional beamline implantation and piii hydrogen implantation, 600 is appropriate for the post - implantation treatment
Sige - simox工藝方面：首次採用硅（ 100 ）襯底上直接外延的100nm厚sige的樣品中注入高劑量的o離子，通過退火處理成功制備了sige - oi新結構，即sige - simox工藝，證實了以45kev注入3 10 ~ （ 17 ） 7cm ~ （ - 2 ）劑量的氧離子，隨后在氧化層的保護下經1250 ， ar + 5 o _ 2氣氛的高溫退火（ 5小時）過程，可以制備出sige - oi新型材料；實驗中觀察到退火過程中的ge損失現象，分析了其原因是ge揮發（ ge通過表面氧化層以geo揮發性物質的形式進入退火氣氛）和ge擴散（ ge穿過離子注入形成的氧化埋層而進入si襯底中） ，其中ge擴散是主要原因；根據實驗結果及實驗中出現的問題，對下一步工作提出兩個改進的方案：一是通過在si襯底中注入適量h ~ + / he ~ +形成納米孔層來阻斷ge擴散通路，二是可以通過控製表面氧化來調節安止額士淤丈撈要表面sige層中的ge組分，從而部分解決sigeAnd pays emphasis on analyzing the system structure and system flow, the core techniques, the channel characteristic and parameters of dvb - t system. the system adopts some core techniques such as cofdm, a lot of tps ( transmission parameter signalling ) insert and guard interval, and so on. so it can withstand high - level ( up to odb ), long delay static and dynamic multipath distortion
論文首先描述了數字電視地面廣播的需求條件，技術難點和目前存在的問題，並重點分析了dvb - t系統結構流程，核心技術及系統通道特性和參數，該系統採用了cofdm （編碼正交頻分多路復用） ，大量導頻信號插入和保護間隔技術等核心技術，使之能抵抗高電平（ 0db ） ，長延時的靜態和動態多徑失真，有利於數字和模擬電視的混合傳輸，它的多載波調制模式功能和性能在移動和便攜接收、同頻網等方面具有獨特的優勢。This dissertation adopts a universal digital ds / dmpsk modulation and demodulation scheme which is based on fpga. this scheme adopts quadrature balanceable modulation, intermediate frequency sampling, digital matched filtering, delay differential demodulation techniques and so on. it directly processes the digital signals on intermediate frequency without down - conversion, and doesn ’ t need pseudo random codes synchronization and carrier wave extraction circuits
本文採用了一種基於fpga的通用數字調制解調方案，該方案在調制端採用了正交平衡調制技術，在解調端採用了中頻帶通采樣、數字匹配濾波、延時差分解調等技術，直接在中頻上進行數字信號處理，不需要進行下變頻，也不需要增加額外的偽隨機碼同步捕獲和載波提取電路。There are two uncertain factor about it : the phase of the pn code and the doppler - shift. after capturing the received signal successfully, the traditional ds receiver always uses a delay locked loop ( dll ) to synchronize the pn code and then uses a costas loop to realize the carrier synchronization. this complex closed - loop structure not only take long time to realize the synchronization, but also has the defect of “ hang up ”
傳統的擴頻接收機通常在捕獲偽碼信號后利用遲早門鑒相的延時鎖定環來實現偽碼的精同步，解擴后利用科斯塔斯環實現載波同步，這種閉環結構不僅同步時間長、結構復雜，而且鎖相環還存在所謂的「 hang - up 」現象。Air filtration portfolio, air filters, valve, oil mist machine, filter valve, oil mist separator, micro - mist separator, stability activated solenoid valve, pressure gauge, micro - valve and vacuum valves, links the release of the closure - pressure valves, and pipe connection, a one - way valve, t - shelves, shelves, brackets, diaphragm - type flow switches, blades type flow switches, further growth actuator, the valve lock, precision valve, pressure switches, mechanical pressure switches, pneumatic control ratio positioning devices, and electric - gas ratio positioning devices, and telecommunications - pressure converters, electro - pneumatic proportional valve, filter valve, shuttle valve, gas - electric relay and gas indicator, delay pneumatic valve and cylinder fcl, plumbing fcl, mufflers and exhaust cleaner, the excess flow valve with silencer, a one - way valve, rapid valve, rapid joints, rapid valve with fcl, rapid joint sub - cluster gas, micro joints, gas pipes, pipe from the devices, and helical coils, pipes, channels, scissors, multiple fastener, high - speed rotary joint, 10000 threaded joints, and insert the tube joints, rotary joints began, 68. 25 rapid joints and hoses, hose fittings and rapid non - electrostatic
空氣過濾組合空氣過濾器減壓閥油霧器過濾減壓閥油霧分離器微霧分離器穩定啟動電磁閥壓力表微型減壓閥減壓氣閥三通釋放式截流閥壓力開關管接頭單向閥t型隔板隔板托架膜片型流量開關漿葉型流量開關增速繼動器鎖定閥精密減壓閥壓力開關機械式壓力開關氣控比例定位器電-氣比例定位器電訊號-氣壓轉換器電-氣比例閥過濾減壓閥梭動閥氣-電繼電器氣源指示器氣動延時閥氣缸限流器管道限流器消聲器排氣潔凈器限流閥帶消聲器單向止回閥快速排氣閥快速接頭快速排氣閥帶限流器快速接頭集束分氣微型接頭氣喉管喉管脫離器螺旋管排管管道剪刀多管扣件高速旋轉接頭萬用螺紋接頭插入式管接頭旋式緊鎖接頭難燃性快速接頭和軟管不帶靜電快速接頭和軟管When the traffic load becomes heavy mred increases the value of maxp, and on the other hand when the traffic load becomes light mred decreases the value of maxp, and therefore mred can effectively adjust the congestion notification sending rate and stabilize the queue size. the differentiated services architecture, proposed by the ietf diffserv working group has recently become the preferred service model for addressing qos issues in ip networks because of its simplicity and scalability
當tcp連接數很大也就是擁塞程度嚴重時需要採用激進的方法，也即增大max _ p的值；當tcp連接數較小也就是擁塞程度較輕時需要採用保守的方法，也即減小max _ p的值；從而及時調整向源端發送擁塞通知的速率，維持隊列長度的穩定，避免不必要的傳輸延時和抖動。We implement the traffic generator by these studies. the thesis focuses on how to generate abundance flow, how to send flow fastly, how to measure network, how to synchronize flow sender and flow receiver. we use some solution to resolve the problems, including that using linear congruential and modifying select - giveup algorithm to generate random number, implement class that has good application interface to user, making random number as packet ’ s inter - departure - time and packet size, which can provide flow base on special distribution, designing and implementing a method to active measure by our traffic generator, designing a accurately time counter and precision delay function, synchronizing flow sender and receiver by tgm message
通過對現有技術的研究和改進，我們形成的解決方案如下:通過利用改進的線性同余演算法，以及對舍選法進行研究和改進，實現了一個具有良好應用介面的隨機變量生成器，利用其產生的隨機數作為發包的間隔或包的尺寸，以產生服從特定模式的流;利用傳輸的數據包設計並實現了網路的主動測量，為網路測量和流的發送設計了高精度的計時器，精確延時函數;利用自定義的tgm報文協調發送端和接收端的操作。Secondly, we apply tk operator to the cross - correlation of received signal code and pn code to separate the multi - paths. it comes to a conclusion that tk operator can separate the multi - paths within less than the chip period accurately of spread - spectrum system with space - modulation by simulation. at last, we apply this algorithm to the practical signal collected by gps tap, and from the result we can drop a conclusion the tk algorithm is practical
本文首先闡述了時空調制擴頻信號原理以及在多徑干擾下時空調制接收機的性能和teager - kaiser接收機的原理;接著對時空調制擴頻系統的解調信號與偽碼的互相關函數採用tk接收機進行多徑分離，模擬結果表明， tk接收機對時延在一個碼片內的時空調制擴頻通信多徑信號有很好的分離效果;最後用數據採集器對一個gps信號進行接收和多徑的估計，驗證了該演算法在實際的運用中對多徑的擴頻信號有很好的分離效果。Interconnection generates in 1994, when china union was founded. with the development of telecommunication industry, interconnection presents different states, at the beginning, it ’ s the problem of weak & delay signal because of the telegraphic network ’ s low quality, then it becomes the situation of connected but influent, by 2003, it badly deteriorated while both sides destroyed the cable, interdicted communications by people, so people focus on interconnection
互聯互通問題早期表現為因電信網本身質量問題而導致的網間信號不好、簡訊延時等;接著，發展為固網、移動網之間，本地網、 ip長途網之間不時出現的不通、不暢等問題;而在2002年、 2003年問題已經嚴重到互相砍斷傳輸電纜、人為阻斷網間通信等惡性事件接連發生。There are several problems in scalable and reliable multicast, such as, feedback implosion and local recovery, etc. aim at to solve the problem of feedback implosion, we discuss carefully how to set the timer to avoid the nack implosion in receiver - initiated, integrate fec system. we propose two methods : divided time equally and based on exponential distribution to set timers, divided time unequally and based on exponential distribution to set timers. by analyzing for up to 10 receivers, both of them can avoid the nack implosion and feedback delay due to timers is low
在可伸縮可靠多描通信中存在反饋信息爆炸、局部恢復數據困難等問題，為了解決反饋信息爆炸的問題，本文針對基於接收者啟動、使用集成fec的系統，詳細討論了如何使用定時器避免nack爆炸，提出了設置定時器時間的兩種方法：基於指數分佈、均勻分段方法和基於指數分佈、非均勻分段方法，並且分析了它們抑制nack的能力和由定時器引起的nack延時長短，通過分析可知：對接收者數量達到10 ~ （ 10 ）數量級的多播通信，這兩種方法都能避免反饋信息爆炸，且由定時器引起的nack延時短，並且后一種方法優於前一種方法。Then the effects of the more practical issues such as estimation error and the estimation delay are considered, which results in a method that could be used when channel estimation is incomplete
接著分析了通道估計誤差及通道時延對于自適應調制的影響，給出了在這些實際情況下，切換門限的設定方法。Presently, the apon system adopts tdma as the access mode on the uplink. it requires not too much in terms of optical performance, but it requires more complex electronic equipment ( e. g., complex synchronized timing, ranging and delay control technolgies ) to avoid the collision of uplink information packets
目前apon系統在上行通道中採用時分多址的接入方式，它對光性能方面的要求不高，但它要求更復雜的電子設備，如要求復雜的同步定時、測距和延時控制技術，以避免上行信息分組產生碰撞。Put through power supply, open lamp switch treat one minute, start up fan switch 2 - 3 minutes and then proceed job, work stop turn off lamp switch delay 3 - 5 minutes lamp complete cool off later and then turn off fan
接通電源后，打開燈開關待1分鐘后，啟動風機開關2 - 3分鐘后即可進行工作，工作停止后關掉燈的開關延時3 - 5分鐘燈完全冷卻后即可關掉風機。First the dissertation analyzes and compares the actuality of the performance of the power line carrier network, then put forward the principle of the test system, configuration of the hardware and design of the software of the system. so i analyze the theory of the test system by testing the time delay, and analyze the factor which effect the time delay. then narrate how to test the bandwidth and probability of error - code briefly
論文首先對電力線載波網路性能研究的現狀進行了分析和比較，然後提出本虛擬測試儀的實現原理，硬體的配製以及軟體的設計，接著通過詳細的延時測試說明此虛擬測試儀的運作原理，並分析影響延時的因素。還簡要地說明如何使用此虛擬測試儀對網路帶寬和誤碼率進行測試。分享友人