數學晶元 的英文怎麼說
中文拼音 [shǔxuéjīngyuán]
數學晶元
英文
math chip-
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。Lottery ticket, scratch cards, shave the award card, shave the card, click and nip, the game card, pvc card, rechargeable card, it is good that the card speciality of telecommunications is made to you ! we are specialities to make lottery ticket, shave the card, reward the card, shave the award card, tear the card, opening card, it is happy to shave, take off the card, lottery tickets, not doing the glue, the anti - counterfeit card, lottery - attached ticket, etc. : promoting modernly indispensably, the paper card, paper rechargeable card, pvc network game is clicked and nipped, game card, the phonecard, the card of surfing internet, telecommunication card, read the card, the film is clicked and nipped, monthly card, ip card, ic card, honored guest s card, membership card, favourable card, magnetic stripe card, etc.
獎券刮刮卡獎卡刮獎卡撕開卡揭開卡點卡游戲卡揭揭卡彩票電碼防偽數碼防偽物流防串貨系統800免費電話查詢系統網站查詢系統簡訊查詢系統不幹膠獎券學習卡閱讀卡晶元卡智能卡刮刮樂防偽卡電話卡上網卡閱讀卡電影點卡包月卡ip卡充值卡有獎門票噴碼順序碼， pvc卡貴賓卡會員卡優惠卡電信卡磁條卡條碼卡銀行貴賓卡證券卡有像證件卡接觸式ic卡非接觸式ic卡m1卡id卡服裝吊牌等各種卡類We are specialities to make lottery ticket, shave the card, reward the card, shave the award card, tear the card, opening card, it is happy to shave, take off the card, lottery tickets, not doing the glue, the anti - counterfeit card, lottery - attached ticket, etc. : promoting modernly indispensably, the paper card, paper rechargeable card, pvc network game is clicked and nipped, game card, the phonecard, the card of surfing internet, telecommunication card, read the card, the film is clicked and nipped, monthly card, ip card, ic card, honored guest s card, membership card, favourable card, magnetic stripe card, etc. : game, film, reading, examination websites are indispensable ; gush out yard, the substandard association of yard of the order takes the place of the company processed
獎券刮刮卡獎卡刮獎卡撕開卡揭開卡點卡游戲卡揭揭卡彩票電碼防偽數碼防偽物流防串貨系統800免費電話查詢系統網站查詢系統簡訊查詢系統不幹膠獎券學習卡刮刮卡晶元卡智能卡刮刮樂防偽卡電話卡刮刮卡閱讀卡電影點卡包月卡ip卡充值卡有獎門票噴碼順序碼， pvc卡貴賓卡會員卡優惠卡電信卡磁條卡條碼卡銀行貴賓卡證券卡有像證件卡接觸式ic卡非接觸式ic卡m1卡id卡服裝吊牌等各種卡類In chapter 5 we discuss the design of ieee754 standard fpu ( floating point unit ). processor and uart ( universal asynchronous receiver transmitter ), these cores are used in this dissertation, fpu is used for floating point complex fft processor, uart is used for fft processor " s peripheral and our test platform. in chapter 6 we discuss the design for testability, including atpg, bist and jtag method, discuss the different verification and simulation strategy in soc scale facing to different modules, build up the test platform which is used to test high performance application specified digital signal processing processor. in chapter 7 we summarize the research results and creative points, and point out the further work need to do in the future
第五章提出了基於ieee754浮點標準的浮點運算處理器的設計和異步串列通信核的設一浙江大學博士學位論文計，提出了適合硬體實現的浮點乘除法、加減運算的結構，浮點運算處理器主要用於高速fft浮點處理功能，異步串列通信核主要用於pft處理器ip核的外圍擴展模塊以及本文所做的驗證測試平臺中的數據介面部分第六章提出了面向系統級晶元的可測試性設計包括了基於掃描測試atpg 、內建自測試bist 、邊界掃描測試jtag設計，在討論可測試性設計策略選擇的問題上，提出了針對不同模塊進行的分別測試策略，提出了層次化jtag測試方法和掃描總線法，提出了基於fpgaWe have accomplished a primary explore of the checkout system, such as, the design of imaging optics road, the calculation and selection of sensor, the selection of digital processing chip. we utilize dam6416p board and ccs2. 2 software to put up a micro - dot simulation system
本文完成了該檢測系統的初步探索：根據幾何光學原理，設計了成像光路的方案；完成所需圖像傳感器分辨能力的計算和型號的選擇；完成了數字信號處理晶元的選擇，及對模擬開發系統的學習和初步應用，並利用基於tms320c6416晶元的dam6416p模擬開發版和集成開發環境ccs2 . 2 ，搭建了一個顯微網點處理系統，從而驗證了系統的可行性。With the thermodynamic theories and techniques, it is relatively easy to determine the phase equilibrium data with enough accuracy, however there still exist much more difficulties in crystallization kinetics study even for a simple binary system. that is the reason that nucleation and crystal growth rate are generally represented in form of the empirical expressions. the crystallization kinetic is important for crystallizer design, process control and optimization, and it is strongly depended upon the accurate characterization of process information concerning with multiphase flows and the further disclose of its mechanisms with suitable mathematical models
熱力學理論和方法已足以獲得準確的相平衡關系；然而即使對于簡單的二元物系的結晶過程，晶核形成和晶體生長動力學的研究仍面臨許多困難，通常採用經驗模型表述，而動力學參數的準確性和可靠性是結晶器放大設計、過程式控制制與優化的關鍵，因此多相流信息的準確表徵、結晶機理的進一步揭示及建立起與之相適應的數學模型有著十分重要的學術研究和實際應用價值。The technology of digital signal processing has made great progress with the development of information science and chip technology since it was born in 1960 " s
數字信號處理（ digitalsignalprocessing ）技術，從20世紀60年代以來，隨著計算機科學和信息科學、集成晶元製造工藝的飛速發展，數字處理技術應運而生並得以快速發展。Onjanuary22nd, 2005, the “ zhongshi number one ” digital television ground transmission chip, independently researched by microelectronic research institute of fudan university and produced by shanghai hongli semiconductor and smi, passed the technical evaluation hosted by ministry of education and participated by academicians from chinese academy of sciences and chinese academy of engineering
2005年1月22日，由復旦大學微電子研究院自主設計、上海宏力半導體和中芯國際本土製造的「中視一號」數字電視地面傳輸晶元，通過了由國家教育部主持、中國工程院和中國科學院院士參與的技術鑒定。This modeling method is applicable to most of facts and hvdc devices, not only to those devices including thyristor - controlled reactor ( tcr ), such as thyristor - controlled series capacitor ( tcsc ) and static var compensator ( svc ), but also to those devices including converter bridge, such as hvdc device and static synchronous compenstor ( statcom ), etc. it deduces the mathematical models of tcsc, hvdc, svc and statcom devices with the proposed method
該方法能適用於大多數facts裝置和hvdc裝置，不僅可用於含有晶閘管可控電抗器（ tcr ）元件的裝置如可控串聯電容補償（ tcsc ） 、靜止無功補償器（ svc ）等的建模，也可用於含換流橋的裝置如hvdc裝置、靜止同步補償器（ statcom ）等的建模。本論文採用動態相量法建立了tcsc 、 svc 、 hvdc及statcom裝置的數學模型。However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper
充膠樣品粗化尤為嚴重； ? ni - sn金屬間化合物包括兩層：其中，靠近ni焊盤的那層比較平整，同時， eds結果分析表明其化學式近似為nisn ，而靠近焊料的那層呈板條狀，化學式近似為nisn _ 3 ，文獻表明其為亞穩相； ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用，同時，器件失效模式變為晶元粘接層分層； ? c - sam結果表明本論文採用的充膠樣品，晶元粘接層分層起始於500周左右，而經過2700周循環的樣品，分層幾乎擴展到整個界面。Crystal morphology and growth mechanism of sphalerite crystallites were studied by formulating the mathematical model and calculating the stability energy of the growth units on the basis of the theoretical model that the growth units are polyhedral structure of coordinative anions
摘要本文從負離子配位多面體生長基元模型出發，建立了閃鋅礦晶體生長基元的數學模型，通過對閃鋅礦晶體生長基元穩定能的計算，討論了閃鋅礦的結晶形態和生長機理。Aim at the dtc ' s blemish mentioned above and the direction of dtc technique development, the dissertation put great emphasis on the work as follows, with an eye to exalt dtc system function : ( 1 ) a new speed - flux observer of an induction motor is proposed to enhance the accuracy of flux observing, which is an adaptive closed - loop flux observer and different from the traditions. a new adaptive speed - observation - way is deduced out according to the popov ' s stability theories ; ( 2 ) to improve the performance of dtc at low speed operation, we have to exalt the accuracy of the stator flux estimation and a new way of bp neural network based on extended pidbp algorithm is given to estimate and tune the stator resistance of an induction motor to increase the accuracy of the stator flux estimation ; ( 3 ) digital signal processor is adopted to realize digital control. an device of direct torque control system is designed for experiment using tms320lf2407 chip produced by ti company ; ( 4 ) bring up a distributed direct torque control system based on sercos bus, sercos stand for serial real time communication system agreement which is most in keeping with synchronous with moderate motor control ; ( 5 ) the basic design frame of the hardware and software of the whole control system is given here and some concrete problem in the experiments is described here in detail
針對上面提到的直接轉矩控制的缺陷和未來直接轉矩控制技術發展方向，本論文重點做了以下幾個方面的工作，目的在於提高dtc系統的綜合性能： （ 1 ）提出一種新型的速度磁鏈觀測器，新型的速度磁鏈觀測器採用自適應閉環磁鏈觀測器代替傳統的積分器從而提高磁鏈觀測的精度，並且根據popov超穩定性理論推導出轉速的新型自適應收斂律； （ 2 ）改善系統的低速運行性能，主要從提高低速時對定子磁鏈的估計精度入手，提出了一種提高定子磁鏈觀測精度的新思路? ?利用基於bp網路增廣pidbp學習演算法來實時在線地修正定子電阻參數； （ 3 ）採用數字信號處理器dsp實現系統全數字化硬體控制，結合ti公司生產的tms320lf2407晶元，設計了直接轉矩控制系統的實驗裝置； （ 4 ）提出了基於sercos總線網路化分散式的直接轉矩控制系統， sercos （ serialrealtimecommunicationsystem ）是目前最適合同步和協調控制的串列實時通信協議； （ 5 ）基本勾勒出整個控制系統的硬體和軟體設計基本框架，詳細描述一些實驗中的具體的細節問題。Children will play with dolls equipped with personality chips. computers with in - built personalities will be regarded as workmates rather than tools ， relaxation will be in front of smell - television ， and digital age will have arrived
孩子們將同帶有智能晶元的玩具娃一起玩耍，帶有內置特殊晶元的電腦將被視為工作夥伴而不是工具，人們將在氣味電視前休閑，數學時代將要來臨Some research about sensorless control of induction motors in recent years has been introduced in chapter one. in chapter two, a field - oriented control system with current regulator and voltage source inverter ( vsi ) is presented firstly, which is proved in theory that the voltage feed - forward decoupler can be omitted, the good decoupled control properties of flux current and torque current is also validated by experiments with speed - sensor based on f240dsp real system
論文第二章從異步電機的基本數學模型入手，介紹了一種基於轉子磁場定向的帶電流內環控制的電壓型逆變器輸出閉環矢量控制結構，在理論上證明了該模型可省略電壓前饋解耦環節，採用f240dsp晶元構建的帶速度傳感器實驗系統驗證了其定子電流勵磁分量和轉矩分量有良好的解耦控制特性。The dsp chip, which is special for complex mathematical operation and control fields, has rapid operation speed and higher mathematical operation ability
專門用於復雜數學演算法處理和復雜控制領域的dsp晶元具有較快的系統速度和較強的數學運算能力，比一般的單片機具有很強的數學運算能力。Regard how to structure the control system of sensorless bldcm with dsp - tms320f240 as the centre in this paper, the detailed argumentation course of the motor startup, bemf terminal voltage measurement and control strategy is given out, give and pay concrete details for the software and hardware realization and experimental result. in order to treat the bldcm control system with dsp clearly, the full paper divides into six chapters altogether : chapter one, introduceing the development course, the structure characteristic and operation principle, etc. of bldcm in the introduction ; chapter two, directed against the startup issue of bldcm, the chapter give and publish the rotor measure pulse orients technology for motor startup in detail ; chapter three, proceed with mathematics model of the bldcm, expounding the control schemes ; chapter four, two important devices introducing : dsp ( 240 tms320f ) and power invertor control chip ( ir2131s ) ; chapter five, give and publish the detail of hardwares of control system ; chapter six, by ccs ide of ti, realize the control schemes in the front chapters with software, offere the procedure flow chart of main subroutine and some key place of programming, the experiment result in addition
全文共分六章：第一章、緒論中介紹了bldcm的發展歷程、電機本身的結構特點和工作原理等；第二章、針對五位置傳感器bldcm的起動問題，文中詳細給出了檢測脈沖轉子定位起動技術；第三章、從電機的數學模型入手，詳細論述了反電動勢端電壓法和系統的控制策略；第四章、介紹了硬體實現中的兩個重要器件： dsp （ tms320f240 ）和功率管逆變器控制晶元（ ir2131s ） ；第五章、詳細給出了控制系統的硬體實現細節；第六章、利用ti提供的ccs集成開發環境，將前面章節的控制方案用軟體加以實現，給出了主要部分的程序流程圖和一些編程要點以及實驗結果。And after the structure simulated by the aid of the finite element method ( fem ) software ansys, the optimal parameters are approached. a mems micro force sensor suitable for the microgripper is achieved which is based on piezoresistance effect of semiconductor. the operating principle of micro force sensor is presented, and modeling, analyzing the structure, achieving the best parameters
為滿足微夾持器的需要，設計了半導體壓阻式mems微力傳感器，分析了微力傳感器的工作原理，對其結構形式進行了建模、分析，求取了結構的最優參數;給出了壓阻式傳感器的基本設計原則，選擇了合理的材料，以力學分析為根據，確定了力敏電阻條的位置，並對電阻條進行了設計，介紹了微機械製作技術，給出了傳感器晶元制備流程。In this paper, the current three - dimensional measuring systems in home and outsides are analysed, the design project based on optic induction technology and singlechip is put forward. in the case, the problem in orientation is solved by optic induction technology, the system is composed of integrate circuits, in the end the integration is enhanced and the design of hardware is simplified. the data collection process and communication in the system are completed by programming
在方案的實現過程中，利用先進的光學感應技術有效地解決了三維量測系統的定位問題；採用多種集成晶元構成適于專業三維量測的單片機應用系統，提高了系統集成度，簡化了系統硬體設計；通過單片機程序設計實現了三維量測系統的數據採集、處理與通信。In the paper, the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed. the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer, which is developed based on field orientation control principle. the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware
本文對矢量控制的原理、控制方法以及控制實施策略進行了較為系統的分析與研究，利用速度間接觀測理論，建立了異步電機的磁通觀測器，電機的定子磁通和電流的轉矩分量可以通過磁通觀測器估算出來，從而得到電機的轉速，並由此建立了異步電機無速度傳感器矢量控制的理論數學模型和相應的控制演算法，在此基礎之上，利用工程中常用的電機專用dsp晶元tms320lf2407作為處理器，對異步電機進行變頻調速控制。The main results of this paper are as fellows f 1 ) illtroducing the ultrasonic technology to the rigid measurement, successful1y exploits the practical small intellectualized ultrasonic device of measuring rigidity by applying mechanical technology, electronic technology and computer science 2 ) reading clearcf displaying more various, applying more information, being easiest to accept by user because of adopting liquid crystal display ( lcd ) 3 ) theorizing the mathematical model between the signal of frequency and the rigid value on the device, possessing very importan practical significance 4 ) optimizing the every parts of the device, achieving the goals of lower wastage of energy, smaller, lighter and inexpensive 5 ) taking the measure to reduce the wastage of energy and adopting reasonable management in power supply for the device, making the device skimp more energy, prolonging the life - span of battery 6 ) utilizing the interface of rs - 232, discussing the communication between the ultrasonic device of measuring rigidity and computef, and also forecasting the foreground of advanced exploitation by user
本文工作的主要成果是： 1 ）將超聲波技術引入零件表面硬度的檢測當中。應用機、電、計算機技術，研製成功較為實用的小型智能超聲波硬度檢測儀2 ）採用lcd （ liquidcrystaldisplay ）液晶顯示，使讀數更清晰、顯示多樣化、信息量多、易於為用戶接受3 ）在理論上建立了該系統的頻率信號與硬度值的數學模型，具有非常重要的實踐意義4 ）對各元器件進行優選，達到低能耗、體積小、重量輕、價格便宜等目的5 ）採取措施降低整個系統的能耗並對系統的供電進行了合理的管理，使其進一步達到低能耗，延長了電池的使用壽命。 6 ）利用rs - 232標準介面，討論了該超聲波智能硬度測量儀與系統機進行通訊以及用戶進行二次開發的前景分享友人