digital computer simulation 中文意思是什麼

digital computer simulation 解釋
數字計算機模擬
  • digital : adj. 1. 手指的；指狀的。2. 數字的，數據的。n. 1. （鋼琴等的）琴鍵。2. 手指。
  • computer : n. 1. 計算者。2. （電子）計算機；計量器。-ism 電子計算機主義〈認為電子計算機萬能等〉。-erite, -nik 計算機專家；計算機工作者。
  • simulation : n. 假裝；模擬；裝病，裝瘋；【生物學】擬態，擬色。
  1. A digital contour map is used for terrain representation of computer generated forces ( cgf ) in distributed interactive simulation ( dis )

    摘要採用等高線地圖作為分佈交互模擬環境中計算機生成兵力的地域表示。
  2. The results of computer simulation and fpga simulation indicate that the technique is feasible and the experiment ' s results show that the performance of the system is excellent. in this paper, it summarize the basic principles of the if ( intermediate frequency ) digitization technology and detail the design and fpga realization of the digital if receiver system

    在具體實現中，提出了一種基於多相濾波結構來進行抽取濾波的中頻接收機方案，通過計算機模擬，證明了它的可行性，並圍繞此方案完成了數字下變頻硬體系統的設計和調試工作。
  3. This paper mainly focuses on the noise limiting by means of the direct sequence spread spectrum ( dsss ) and the analysis of the transmission performance of the plc and some digital modulation technology. the contents of the paper is as follows : 1 ) the technical feasibility is proved after simulating noise limiting principle of dsss by means of systemview, the simulation software ; 2 ) a kind of band pass filter ( bpf ) is realized according to the requirement of filter and the principle of butterworth approximation, which satisfies the index of performance of dsss. 3 ) the low voltage plc system includes the sc1128, the specific modulation / demodulation ic, the bpf filter and other circuit components, furthermore, the control function of system is realized by means of the personal computer and the microcontroller

    本課題在對低壓電力線的傳輸特性和數字調制技術進行分析的基礎上，將通信理論中的直接序列擴頻技術（ dsss ）用於解決低壓電力線通信的干擾問題，主要研究內容如下： （ 1 ）用通信模擬軟體systemview對dsss技術的通信和抗干擾原理進行模擬分析，分別對時域和頻域下採用dsss技術前後接收信號的頻譜進行分析，驗證dsss技術在本系統中的可行性； （ 2 ）由dsss技術對濾波系統的要求，根據濾波理論分析了巴特沃思型濾波器的逼近原理並設計了合適的濾波電路； （ 3 ）用調制解調晶元sc1128和自行設計的濾波器加之輔助外圍電路，構造出低壓電力線載波通信系統，並採用atmel公司的單片機設計了接收和發射電路的微控制器； （ 4 ）分別對採取抗干擾措施前後輸入和輸出信號進行對比實驗，並對結果進行分析，驗證了dsss技術對干擾信號的抑制作用。
  4. Considering the requirement of communication network, a local area computer communication system of plc based on usb interface was given after analyzing the application model of plc. then after theoretical analysis and digital simulation, the plc modem and the computer interface models were designed. the design of software about the two models was also finished

    本文首先介紹了電力線通信技術在國內外的研究概況，分析了電力線載波通道的傳輸特性，討論了適合於電力線通信的擴頻載波通信方式，然後結合通信網路的要求，在分析電力線通信應用模式的基礎上，提出了一種基於usb介面的室內計算機電力線通信方案，進行了理論上的分析和數字模擬，設計了電力線modem模塊和計算機介面模塊，編制了相應的軟體程序，並對軟體進行了測試分析。
  5. Based on discussion of sar high resolution and theoretical imaging model and existent simulation of sar digital processing, a more convenient and useful model is built that realizes dialogue between man and computer and has a interface of adding noise signal

    該課題的研究使sar的接收處理過程在計算機上得以實現，並且方便應用於今後的機載sar研究和電子對抗研究工作，具有一定的參考和應用價值。
  6. The outstanding trends are that computer technology, spatial technology and remote sensing technology are applied in hydrological model and distributed physical hydrological model is brought about widely. in the hydrological simulation, rs and gis technology bring innovation for the traditional study methods. digital elevation model ( dem ) technology provides stable foundation for the development of digital hydrology and the naissance of the digital hydrological model in particular

    其突出趨勢主要反映在計算機技術、空間技術、遙感技術等的應用方面，分散式物理模型被廣泛提出，遙感（ rs ） 、地理信息系統（ gis ）在水文模擬中的應用給傳統的研究方法帶來了創新，特別是數字高程模型（ dem ）技術的完善為數字水文學的發展和數字水文模型的誕生提供了堅實的基礎。
  7. Chapter 4 : the influence of different phase - shifting angle of reference wave in recording, of the phase - shifting error and of the quantization error on the quality of the reconstructed image is investigated respectively in two - step phase - shifting inline digital holography. and an effective method of eliminating the phase - shifting error is presented, in which the summation of the intensity bit errors of the reconstructed image is taken as an evaluation function for an iterative algorithm to find the exact phase - shifting value. the feasibility of this method is demonstrated by computer simulation

    通過數值分析不同相移角的選取對再現像的強度誤差的影響，發現再現像強度誤差依賴于記錄時相移角的選取，當相移角在一定范圍內，其再現像的強度誤差相對較小；提出了一種有效消除相移誤差的新方法，並將其應用於二步同軸相移數字全息，對此進行了計算機模擬，得到了很好的結果，證明該方法對于相移誤差的消除是很有效的；對量化誤差所作的數值模擬發現，當信號被量化成8比特（ bit ） ，即256個灰度級以上，量化噪聲的影響相對較小。
  8. In the field of science and techniques of defence, computer digital sumulation technology become the most advancedted technology in the field of military electronic information system, missile weapon system, aero - space project, etc. without support of simulation technology, the development of great national defence project and weaponry can not be as so fast like today

    在國防科技領域，計算機數字模擬技術已成為軍事電子信息系統、導彈武器系統、航空航天工程等研製與實驗中的先導技術，沒有模擬技術的支持，重大國防工程和武器裝備的發展就不可能像今天這樣如此迅速。
  9. The rotation control technology in the laser gyro strapdown inertial navigation system was studied. the method of realizing closed - loop digital control with rlg located in the strapdown inertial navigation system was discussed. the structure of rotation servo system was introduced. the designing method and process of the digital controller were given. the method of implementing digital controllers by means of computer and software flow were demonstrated. the result of simulation and debugging of this system showed that it fullfills the requirment of the strapdown inertial navigation system. it assures the stability of rotation and solves the problem of striking without increasing the volume and cost of the system

    研究激光捷聯慣導系統中的轉位控制技術.採用捷聯慣導系統本身的rlg實現轉位系統的閉環數字控制，給出了轉位伺服系統的結構組成以及數字控制器的設計方法和設計過程，給出了數字控制器的計算機實現方法和軟體流程.模擬及調試結果表明，所設計的轉位伺服系統滿足捷聯慣導系統的要求，既保證了轉動的平穩性，克服了到位撞擊問題，又不增大體積、增加成本
  10. The theoretic analysis and computer simulation results reveal that this influence ca n ' t be ignored. because the if sampling and digital demodulation technique can improve amplitude and phase unbalances of in - phase and quadrature channels, we apply it in the pd weather radar signal processing system and select several digital demodulation algorithms, which are easier to implement, for this system

    由於採用中頻采樣和數字解調技術能有效地提高正交解調兩路的幅相一致性，本文將中頻采樣及數字解調技術應用到脈沖多普勒氣象雷達信號處理系統中，並結合氣象信號的特點選擇了適合工程實現的中頻采樣及數字解調演算法。
  11. Here a scheme to implement broad - band constant beamwidth digital beam - former has been presented. the results of computer simulation show the scheme is effective

    本文給出了一種寬帶恆定束寬數字波束形成器的實現方案，計算機模擬結果表明了該方案的有效性。
  12. The application of the digital video recording technology changes the treatment for the video signal from the traditional simulation to the digital. it is the great innovation in the surveillance fields that providing the well computer platform for system integration and non - human monitoring trend

    數字錄像技術在監控系統中的應用，將傳統對視頻信號模擬處理方式改變為數字處理方式，是監控領域中的重大革新，並為系統集成提供良好的計算機平臺，真正達到監控的無人職守。
  13. The papers in the analysis of the figures orthogonal frequency conversion technology basis, more traditional lut and cordic ( coordinate rotation digital computer ), analysis of the superiority of the latter ; and the use of verilog programming to maxplus ii software for the simulation environment, conducted in fpga devices based on the structure of the cordic simulation of frequency conversion

    本論文在分析數字正交下變頻技術的基礎上，比較了傳統的查表法和基於cordic演算法的結構，分析了後者的優越性;並用verilog編程，以maxplus軟體為模擬環境，在fpga上進行了基於cordic演算法流水線結構的下變頻模擬。
  14. In order to deal with above problems, it is the all - important work for the mountain x " s prospecting and exploiting for mineral resources in the future to change the information of paper map into the information of digital computer simulation and to replace manual handle with computer in designing and computing by using the computer technology

    為了解決以上問題，利用計算機技術，把工程圖信息轉化為數字化計算機模型信息，用計算機來代替人工的設計計算，已成為今後x山資源勘測與開采設計的首要問題。
  15. ( 2 ) the three numeric methods, including formula method, histogram method and feature vector method, of calcucation invariant probability distribution for chaotic map is derived, and their characteristics are discussed each other, these results of the computer simulation are in agreement with those of theoretic analysis. ( 3 ) the principles and methods of chaotic communication are reviewed and commented systematically. first, several main chaotic synchronization methods are discussed, then the methods and ways of chaotic communication are explored, including analogue chaotic communication, digital chaotic communication and direct chaotic communication. this is the article basis, and it startes from follow - up case study

    所做的工作總結如下： （ 1 ）綜述了混沌現象及其理論的相關問題並對碼分多址通信系統的擴頻地址編碼與混沌序列、混沌同步與系統保密性等問題作了討論； （ 2 ）研究了計算混沌映射不變分佈的三種數值方法，即：公式法、直方圖法以及特徵向量法，並比較了各自的優缺點，計算機模擬結果與理論分析結果相符。
  16. Computer simulation results show that the beamspace wsf algorithm retains the super performance of its element space counterpart when applied to the beam outputs of some practical acoustic - receiving array. 3. an improved form of classical time domain broadband beamforming is proposed by combining digital delay lines and fir filters

    提出了對經典時域寬帶波束形成器的改進方法，採用數字延遲線和fir數字濾波器結合的方式實現時域波束形成，以消除波束畸變並實時實現結構特殊的空間頻率響應。
  17. The computer simulation technique for flow visualization is the technique of computational flow imaging ( cfi ). cfi is succinctly defined as the art and science of generating digital images of theoretical fluid observations of real flow fields. it involves numerical value calculation, image processing, computer graph and so on

    流動顯示的計算機模擬技術亦即計算流場成像（ cfi ）技術，是根據計算流動現象產生數字圖像模擬真實流動的光學觀測的方法和藝術，涉及到數值計算、圖像處理、計算機圖形生成等多種技術。
  18. Based on the research project " spc - 33 digital governor computer aided analysis system ", this paper realizes the digital governor, which has been fixed in newly built vessels in our country fault analysis and diagnosis with computer and simulates the spc - 33 digital governor control panel and speed control system by adopted the fta analysis theory and computer based simulation

    本文結合中遠集團科研項目《 spc - 33電子調速器計算機輔助分析系統》 ，對我國近幾年在新建船舶中採用的spc - 33電子調速器，運用fta故障樹分析理論及計算機模擬，實現電子調速器故障計算機分析和診斷，並對調速器操作面板和轉速控制系統進行模擬。
  19. The paper is based on the project of " the research of mathematics and computer frequency dynamic simulation theory on knobs not result ". the research content is object to the image of log knobs by vidicon getting to detect the shape of log knobs according to the method of video disposal. the paper apply digital image processing technology to log knobs image to swell and detect borders, then distill the surface shape and characteristic parameter of knobs. the thesis depict the knobs three - dimensional models, build the mathematics models of log knobs and simulation two - dimensional image curve of the log knobs primary section which has been discerned, thereby achieve our researching aim to reappear the knobs image on computer

    本論文是國家自然科學基金資助項目「節子ndt結果的數學描述與視頻動態模擬理論的研究」的基礎研究之一，論文的研究內容是通過視頻處理的方法檢測原木表面節子的形狀，以攝像機採集的原木表面節子圖像為對象，運用數字圖像處理技術對節子圖像進行修正、增強、邊緣檢測等處理，提取節子的形狀特徵參數，並運用數學的方法，歸納總結其規律，應用數學的方法對節子的二維模型進行描述，建立原木節子的數學模型，對識別出的原木節子主截面的三維圖像曲線進行擬合處理，從而在計算機上實現節子的分佈與形態的再現，達到研究節子的空間形態和分佈規律的目的。
  20. Digital detecting technique for harmonics current and its computer simulation

    諧波電流數字檢測技術的計算機模擬
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