最大理論帶寬 的英文怎麼說
中文拼音 [zuìdàlǐlúndàikuān]
最大理論帶寬
英文
maximum theoretical bandwidth-
Jiangxi hotel is the five - star modern business hotel, located in the flourishing midsection bayi avenue of nanchang city and the centre areas of politics, economy, culture, sports and amusement and commercial activity. graceful and modern decoration, has fully reflected ecology and perfection of the environmental protection idea with unified which offer comfortable satisfied staying and enjoyment for you. no matter whether on business or holiday, the reception will be shown consideration for by the speciality
江西賓館是一家五星級現代商務酒店，位於江西省南昌市最寬闊繁華的八一大道中段，距南昌火車站三公里，到南昌昌北機場三十公里，置南昌政治經濟文化體育娛樂及商務活動的中心地帶。優雅現代的裝璜，充分體現了生態與環保理念的完美統一，為您提供舒適愜意的下榻享受。無論您是到此公幹或度假消閑，都會受到專業體貼的接待。This article puts forward a solution named divide - assemble by deducing the size of bp neural network to overcome entering the local best point, the dividing process is that a big bp neural network is divided into several small bp neural networks, every small bp neural network can study alone, after all small bp neural networks finish their study, we can assemble all these small bp neural networks into the quondam big bp neural networks ; on the basis of divide - assemble solution, this article discusses the preprocessing of input species and how to deduce the size of bp neural network further to make it easy to overcome entering the local best point ; for the study of every small bp neural network, this article adopts a solution named gdr - ga algorithm, which includes two algorithms. gdr ? a algorithm makes the merits of the two algorithms makeup each other to increase searching speed. finally, this article discusses the processing of atm band - width distribution dynamically
本文從bp網的結構出發，以減小bp神經網路的規模為手段來克服陷入局部極小點，提出了bp神經網路的拆分組裝方法，即將一個大的bp網有機地拆分為幾個小的子bp網，每個子網的權值單獨訓練，訓練好以後，再將每個子網的單元和權值有機地組裝成原先的bp網，從理論和實驗上證明了該方法在解決局部極小值這一問題時是有效的；在拆分組裝方法基礎上，本文詳細闡述了輸入樣本的預處理過程，更進一步地減小了bp網路的規模，使子網的學習更加容易了；對于子網的學習，本文採用了最速梯度? ?遺傳混合演算法（即gdr ? ? ga演算法） ，使gdr演算法和ga演算法的優點互為補充，提高了收斂速度；最後本文闡述了用以上方法進行atm帶寬動態分配的過程。This paper starts the research of the liquid floated pendulous accelerometer testing system according to the engineering. at first, this paper gives the brief introduction of the history and present status of accelerometer and its testing technology, the working principium and math model of the liquid floated pendu - lous accelerometer, and then, decides the binary width pulse force retrim loop as the design proposal of testing system, researches the transfer function of every part in the system emphasizly, analyses the stability of the whole accelerometer testing system from the angle of control theoretics by the open loop transfer function of system, and designed the correcting net, analyses the basal problems such as resolution, sampling restraint, precision and so on, designs the hardware testing circuits such as preamplification, band - pass filter, alternating amplifier, phase sensitive demodulatorn, pulse - width modulation, frequency scale circuit, moment current generator. finally, using the graphics program language labv - iew which is designed for testing field especially by ni accomplishes the solfware design of testing system, realized the testing functions
首先對加速度計及其測試技術的發展歷史和現狀，液浮擺式加速度計的工作原理和數學模型等作了簡要的介紹，然後確定了以二元調寬脈沖再平衡測試迴路為設計方案，並從控制理論的角度進行了分析，著重研究了系統中各部分的傳遞函數，利用系統開環傳遞函數分析了系統的穩定性，同時設計了系統的校正網路;分析了二元調寬脈沖再平衡測試迴路的解析度、采樣約束以及測試精度等基本問題，並按照系統分析的結果設計了包括前置放大、帶通濾波、交流放大、相敏解調、脈寬調制、頻標電路以及力矩電流發生器等測試系統各部分硬體電路，驗證了電路的正確性，最後按照測試系統的要求，採用了美國ni公司專為測試領域所開發的虛擬儀器工具? ? labview作為測試軟體開發工具，利用該圖形化編程語言完成了測試系統軟體部分的設計，實現了測試功能。The genetic algorithm with load balance can solve routing problem and can be applied in mobile ip and next hop route. chapter 4 collaborates on routing problem via a designated node. due to the excellent performance in nondeterministic polynomial problem, such as tsp, we choose the genetic algorithm to implement triangle routing in mobile ip protocol
本文第三章提出了基於矩陣編碼的遺傳演算法的最低費用的下一跳路由，解決浙江大學博士學位論文了下一跳路由中不考慮網路負載和時延可能產生擁塞的問題，優化了網路的性能，使得網路中的帶寬得到合理分配。The risk estimation of the exposure to market risks as the risk - management ' s core, there are many risk - management models of estimating the risk of financial markets, in this paper, the author first analyses the characteristics of the current financial market risks, then makes a comprehensive systematic analysis and estimation of all kinds of risks present in financial market with the help of var ( value at risk ), a world - wide valuably and widely accepted brand - new risk management tools. finally, a substantive suggestion about the applications of var models to the financial markets risk management of our country is provided on the basis of the detailed analysis of the calculation of all kinds of var models, along with their advantages and disadvantages and also the applications. with the development and betterment of our country ' s security markets, the entry into wto and openness of financial market, financial product innovation and extensions of traditional bank off - balance business, the augmentation of market risks will surely lead to risk management innovation and identity to international standards. therefore, the research of financial market risk management signifies a lot not only in a realistic sense, also in a guideline sense. this is just where this paper aims
針對金融市場風險管理的核心主要是對風險的測量，本文先分析了當前金融市場風險的特點，然後應用近年來在國際上受到廣泛重視並開始為大家所接受的一種全新的風險管理工具? 「在險價值」 （ valueatrisk ） var的基本思想，全面、系統地分析和測量了金融市場所存在的各種風險，並對各種var基本模型的計算、優缺點及應用作了詳細分析，最後對var模型在我國金融市場風險管理的應用提出了實質性的建議。隨著我國證券市場的發展壯大和不斷完善，及加入wto和金融市場的開放，金融產品的創新及傳統銀行表外業務的不斷拓寬，市場風險的加大必將帶來風險管理的創新並同國際接軌。所以金融市場風險管理的研究不僅具有現實意義，更具有指導意義實，這也是論文的出發點所在。Theoretically several solutions are derived in the final scheme such as broadband matching technology which included negative - feedback technology, traveling wave technology and balance technology. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful. the principle of microwave amplifier is introduced at first in this paper, especially its main parameters index sign, then the material performance and the influence of parasic parameter and model setting of the gaas phemt is discussed
文中首先介紹寬頻帶放大器的主要參數指標，接著介紹了gaasfet的材料特性，以及phemt管芯寄生參數對實際放大器設計的影響，然後討論gaasphemt的大、小信號模型的建立與分類;結合gaasphemt模型和s埠參數分析了寬頻帶匹配技術的原理;最後論述本課題中各個放大器實現的具體方案，以及在放大器實現過程中應該注意的問題，給出了實際寬帶放大器的測試結果，並將軟體模擬結果與實測曲線進行對比。In the first part of this paper, the theory of laser range and dds technology was introduced, the factors of influencing range precision were also analysed. at the same time, put forward in the paper, with using the fpga embedded technology, the wideband and high resolution sin modulating signals can be generated easily, then analysed the noise of the dds ; in the second part, the theory of phase measurement based on fft was analysed. in the phase range system, by using the fft operation, the resolution and sensibility of phase measurement can be enhanced ; then some circuits were designed and come true, also simulated and validated ; in last part, the improvement of the phase range system was brought forward, summarized and expected
論文首先闡述了激光測距和調制信號源的基本原理，分析了影響測距精度的因素，指出應用dds技術可以實現寬帶、高精度的調制信號輸出，說明了引起dds輸出信號雜散的原因和解決的辦法;同時分析了應用fft運算實現信號相位提取的基本原理及設計方法，採用這種檢相技術，可以極大地提高測相精度與靈敏度;然後提出了基於fpga嵌入式系統的相位式激光測距機的整體設計，並就各部分進行了詳細的分析與設計;接著介紹了激光測距系統的外圍電路和基於quartusii集成軟體平臺的部分硬體電路的設計，並對其中的設計進行了模擬和驗證;最後總結提出了對系統今後的進一步改進和完善的思路。This thesis deals with design and application of a multiprocessor made of four dsps in monitoring receiver. the broadband monitoring receiver requires a kind of chip with high performance because of complicated intermediate frequency signal processing. the author selects a kind of digital signal processor called adsp21160. during the process of design, the author uses cpld, fpga and some special cpus to finish signal, processing in the monitoring receiver. cluster multiprocessor based on vxibus made of four adsp21160 is put forward. the task distribution of four dsps is solved too. furthermore, data transition methods between chips at a high speed through link ports and chip extension mode using external port are recommended. the author debugs, emulates the program in one adsp - 21160 ez - kit lite and simulates the multiprocessor program in visualdsp + +
本文主要探討了監測接收機中多dsp處理模塊的設計與應用，寬帶監測接收機的中頻處理數據量大、實時性高，這樣，對dsp晶元提出了很高的要求，作者通過比較選擇了最適用於監測接收機的數字信號處理器adsp21160 ，並結合使用了cpld 、 fpga以及一些專用的cpu來完成監測接收機中的數據處理。作者提出了由四片adsp21160組成的簇式多dsp處理模塊的結構並配以了vxi總線，論述了簇式結構的特點，解決了多dsp處理模塊中四片adsp21160的任務分配問題。This subject aim at designing a linear power amplifer whose output power is 40w for 225 - 450mhz band. but it seems not easy to finish the task because of this power amplifier own unique requirements including high output power, broad working frequency band, high linearity, and flat gain. due to the complexity involved, theoretically several soltuions are derived in the final scheme such as broadband matching technology, power - retreat, power synthesize, automatic power control and negative feedback. in addition, the design will be optimized by eda software and the final test result indicates that our design is successful
本課題的目標是研製一個輸出功率為40w的225 450mhz的線性功率放大器。由於該功放要求輸出功率大，工作頻帶寬，帶內增益波動小，線性度高，所以其終合設計難度大。鑒于這個原因，在理論設計上筆者採用了寬帶匹配、功率合成、功率回退、負反饋、自動功率控制等技術；在實踐中精心設計電路，並且配合eda軟體模擬，最終達到所要求的指標。Using a general approach for designing two - dimensional photonic crystals of square lattice, we have found many structures whose absolute band gap hi the low or high frequency range is much larger than what has been reported in the previous literature. to speed up the computation, a fast plane - wave expansion method is introduced for calculating the band structures for such special photonic crystals
最後以gaas和te材料為基礎，通過像素分析法，從理論上提出了多種在低頻、高頻區域有大絕對禁帶的二維光子晶體，並且其禁帶寬度顯著優于所有已有文獻報道的光子晶體結構。Mpls can, therefore, provide an excellent base technology for standards - based vpns. the development of mpls and vpn, which including the basic algorithm of mpls and vpn, the reason of using mpls, the traditional model of vpn, etc. are introduced summarily at first. then, the comparison of ip switching and mpls switching architecture are given
論文首先介紹mpls和vpn的發展、基本原理以及傳統的vpn模型；接著對ip交換體系結構和mpls交換體系結構進行了比較；然後重點介紹基於mpls的vpn的實現；最後結合大連有線電視公司寬帶ip骨幹網這個典型案例介紹mplsvpn在實際工程中的應用並提出構建mplsvpn的一些基本方法。Bandwidth utilization lets you see in real time the total traffic and the bandwidth on your lan
繪制相對于最大理論帶寬的信息，得以深入了解No matter how large the overall aggregate bandwidth from all pci buses, the volume of data that the operating system can handle will finally determine how much i o an application can accomplish
從所有pci總線聚集的總帶寬無論有多大，操作系統可以處理的數據量最終將決定一個應用程序可以完成多少i / o 。分享友人