碼分多工處理 的英文怎麼說

中文拼音 [mǎfēnduōgōngchǔlǐ]
碼分多工處理 英文
code division multiple access
  • 碼 : Ⅰ名詞（表示數目的符號或用具） a sign or object indicating number; code Ⅱ量詞1 （指一件事或一類的...
  • 分 : 分Ⅰ名詞1. （成分） component 2. （職責和權利的限度） what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] （料想） judge
  • 工 : Ⅰ名詞1 （工人和工人階級） worker; workman; the working class 2 （工作; 生產勞動） work; labour 3 ...
  • 處 : 處名詞1 （地方） place 2 （方面; 某一點） part; point 3 （機關或機關里一個部門） department; offi...
  • 理 : Ⅰ名詞1 （物質組織的條紋） texture; grain （in wood skin etc ） 2 （道理;事理） reason; logic; tru...
  1. 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。
  2. Giving the goal and conceptual design, this paper pays attention to expatiate how to practically use the techniques of image - processing, communication and recognition in remote image monitoring system, and discusses how to realize the key techiques such as terminal connection and frame design, platform decoding control and alarm, image communication and track, etc. in order to overcome most existing image monitoring systems " shortages - those systems are at low intelligent level, need overfull manual work and ca n ' t work all day, this paper has adopted the advanced image code / decode technology and digital image transmission technology, and has applied the intelligent image processing and recognition technique to the display, adjust and track of images

    本論文在設計圖像監控系統的建設目標和總體方案的同時，重點闡述了圖像處理、通信與識別技術在遠程圖像監控系統中的應用實現，給出了圖像監控系統中的終端接入和框架設計、雲臺解碼控制與報警、圖像通信和圖像跟蹤等關鍵技術的實現。針對現有的圖像監控系統大部分採用人工為主，機器為輔，智能化程度低，不能全天候工作的現狀，本文採用先進的數字圖像壓縮編解碼技術、數字圖像傳輸技術，將智能圖像處理與識別技術應用於圖像的顯示、調整、跟蹤，克服了一般監控系統要求監控人員過多地干預、智能化程度低的缺陷，並總結了其特點和優勢。
  3. As a crucial embedded development tool, the embedded system debugger is usually used to debug and test embedded software 。 a embedded system debugger consists of a cross debugger and a debugger agent, which characteristic lies in the separation of running environments between the cross debugger and the debuggee and the dependence on the gdb agent in the debug session 。 with the development of embedded technique, various embedded debug techniques continuously advance and all kinds of embedded system debuggers are playing a more and more important role in the embedded software development 。 the gnu debugger, gdb as a tool in the gnu toolkits, is an extremely powerful source - level debugger 。 among gdb ’ s many noteworthy features, its ability to debug programs “ remote ” is fascinating 。 this capability is not only essential when porting gnu tools to a new operation system or microprocessor, but it ’ s also useful for developers who need to debug an embedded system based on a processor that gnu already supports 。 gdb is the preferred solution in embedded development because it provides portable, sophisticated debugging over a broad rang of embedded systems 。 this paper discusses the status quo of various embedded system debuggers ; deeply analyses the overall structure of gdb and the debugging mechanism of gdb based on its source codes ; introduces the gdb ’ s remote debug technique and gdb / mi, which are usually used to develop the gdb - based embedded system debugger 。 then dwells on how to use gdb / mi to develop a gui front and how to use rsp 、 stub and gdbserver to design a debug agent, in order to expatiate on the design method of the gdb - based embedded system debugger 。 in the end, provides a concrete implementation of the gdb - based embedded system debugger of “ embedded simulation development platform ”, the project of the innovation fund for technology based firms 。

    這個特性不僅在將gnu工具移植到一個新的操作系統和微處理器的時候很有用，對于想調試一個基於gnu支持的晶元的嵌入式系統的開發人員來說，也是非常有用的。由於gdb提供了在大多數嵌入式系統上的可移植的、復雜的調試功能，它已成為嵌入式開發的首選解決方案。本文討論了當前的各種嵌入式調試器的現狀，結合源代碼詳細分析了gdb的結構和調試原理，介紹了開發基於gdb的嵌入式系統調試器常用的遠程調試技術和gdb / mi介面;然後詳細闡述了如何使用gdb / mi開發gdb的圖形前端和怎樣使用rsp協議、 stub和gdbserver設計一個調試代理，從而較深入地討論了基於gdb的嵌入式調試器的設計方法;最後，結合國家中小型企業創新基金項目「嵌入式模擬開發平臺」 ，給出了一個基於gdb的嵌入式系統調試器具體實現。
  4. Researches the basis watermark managing works particularly and systemly. there are many works to do on watermak technology except watermark embedding and extraction arithmetics such as the watermark choosing, encoding, modulating, demodulating and the watermark capacity. these prior and ultimate works ensure that the arithmetic is brought into effect. just understanding these, this paper analyses and researches the basic watermark theoretics in many pages. it brings forward chaos modulation on watermark modulating, brings forward chaos permuting on image permuting, introduces bch encoding on letter watermark processing and discusses the approximate estimate of the watermark capacity in dct domain and dwt domain by applying the current communication theoretics. there works not only extend ways for the later work but also are significative on watermark research

    全面系統地研究了水印信號的處理技術數字水印技術除了水印嵌入和提取的演算法外，還有許多工作需要做，如水印的選碼、編碼、調制、解調、能量的確定等等，這些預處理和后處理工作是演算法有效實施的必要保證，正是基於這樣的認識，本文利用較大的篇幅對水印的基本理論知識進行了詳細的分析和研究，在水印的調制方面，提出了混沌調製法；在圖像水印的置亂方面，提出了混沌置亂法；在文字水印的處理上，引入了bch編碼；在水印容量分析方面，結合現代通信理論，對圖像在dct域和小波域內的水印容量估算進行了詳細的探討，這些工作不僅為本文後期工作鋪平了道路，而且對數字水印的研究具有重要的意義。
  5. The work of this dissertation is focused on research of some key technics in signal design and processing of mcpc signal. the main content of the dissertation is summarized as follows : it gives a detailed description of the form of the mcpc waveform and its mathematical model, and analyses the formation and properties of phase coded sequence. it discusses the effect of signal parameters on autocorrelation, power spectra and ambiguity function in forms of single pulse and pulse train and compares different kinds of single pulse signals and pulse train signals

    本文圍繞著多載波相位編碼信號在信號設計與信號處理的若干關鍵問題進行了研究，主要做了以下工作:描述了多載波相位編碼信號（ multicarrierphasecoded ，簡稱mcpc ）的信號形式，給出了其數學模型，對其中相位編碼序列的構成方式與特性進行了分析;從單脈沖和脈沖串兩種信號形式入手，對多載頻相位編碼信號的參數在自相關函數、功率譜密度和模糊方程上的影響作了詳細地討論，對不同調制方式的單脈沖和脈沖串信號進行了比較。
  6. The research work that is innovative and advanced belongs to project application about software and hardware. for resolving question of realtime status information monitoring and measuring system of lines of communication on launch of aerospace, multi - line level measuring model 、 error - code rate measuring model and line - switch controlling model were designed and carried out basing on requirement of users. a reasonable scheme was brought forward for state of system 、 information processing and long - distance monitor and control

    本課題屬軟硬體結合型工程應用項目，解決航天發射中通信線路狀態信息的實時監測問題，在充分研究用戶需求的基礎上，設計並研製了多路電平測量模塊、誤碼率測試模塊、線路控制交換模塊，並就系統工作狀態的建立、各類信息的處理和遠程監控提出了合理的解決方案。
  7. Civil air defense alarm system was a system to dispense antiaircraft alarm sig - nal, hand hostile air attack informational communication to urbanite at wartime. it is a particular informational communication system of the civil air defense depart - ment, and can not be taken place. at the development trend of digitaliza - tion, unitization, integration of civil air defense communication, the civil air defense alarm system is developing too, for adaptation to the require of both future war and peaceful dual, and enhancing civil air defense communication system ' s directing automation. in recent years, development of different kinds of communication technology infuses new clearly energy into communication, especially spread spectrum communication, because of its strongly interference - free feature, invisibility best, realizable code division multiple access and antimultipath wane and so on merit, gets extensive use at wireless region ; the corresponding spread spectrum chips emerge as the times and get boom, which provides advantag e to realization of the circuit of spread spectrum communication. at the same time, in company with the advance of electronics level, the single chip microcomputer has a great development, world renowned chip manufacturer pushout respective products one after another, the kinds of which are too many to statiste

    在人防通信的數字化、一體化、綜合化必然的發展趨勢下，人防警報系統也不斷發展，以適應未來戰爭和和平時期的雙重需要，提高人防通信系統指揮自動化。近年來，各種通信技術的發展給通信注入了活力，擴頻通信更因其抗干擾能力強、隱蔽性好、可實現碼分多址和抗多徑衰落等優點在無線領域得到了廣泛應用；其相應擴頻處理晶元應運而生並得到迅速發展，這為擴頻通信的電路實現提供便利。同時隨著微電子工藝水平的提高，單片微型計算機有了飛躍發展，世界上著名的集成電路晶元製造商紛紛推出各自的產品，單片機型號之多，已達到難以統計的地步。
  8. This dissertation introduces the work principles, hardware circuit structure and application of a pint - sized multifunctional radar echo generator, which can generate various waveforms needed. we can modulate the doppler frequency and adjust the time delay of the waveform to validate the performance the radar system

    該設備體積小、操作簡便、便於攜帶，可模擬lfm 、 nlfm 、單頻、相位編碼等多種脈沖信號波形，具有較寬的多普勒調制和時間延遲調節功能，能有效驗證脈沖壓縮與信號處理單元的工作性能，準確評估雷達系統的分辨力、威力范圍等技戰術指標。
  9. Then produce the frequency complement algorithms and detemine the funcion x / sinx as the complement frequency response. with the combination of their different merit, we put forward the multistage interpolation algorithm. based on the efforts above, we determined the overall architecture of the variable - rate modelation and each unit design, and the emphasis is the 3 - stages algorithm for the variable - rate interplation. the simulation results of the modulator are also given and verified by matlab signal procesing toolboxes

    在以上研究的基礎上，採用變碼速率調制模塊的結構與各模塊的具體實現方案，著重討論了變速率內插的多級實現問題，簡要分析了此方案的優點，給出了rtl級的模擬結果，並將結果導入matlab中，利用信號處理工具箱進行分析驗證。
  10. For the parallel analysis, several interfaces have been developed, on one hand, in order to parallelize the existing serial fea codes and make the system practical, some parallel solver library has been integrated into ooparafea ; on the other hand, ooparafea can also integrate self - developed module into its analysis kernel, in fact, it has already integrated parallel cg solver and parallel pcg solver up to now. in webfea, just like other parts in netfeaf, the class hierarchy ( including two dimension fea class library, three dimension fea class library, internet based fem computer aided instruction and so on ) is introduced first, and the control center which integrated httpserver ( used for building internet project web site ) and computingserver ( dealing with different computing tasks ) takes charge of the whole system. netgrawcad is the application of netfeaf in civil engineering, which offers civil engineers a network based works

    論文還開發了全新用途的網路服務中心，包括http服務器、計算服務器，以及各種用途的計算客戶端：利用java語言的網路通信、界面處理能力結合集群的密集并行計算能力一起完成特定的計算任務，從而使集群計算與web計算很好的集成在一起； webfea作為一種應用客戶端，配合netfeaf集成系統的各個計算組成部分，可以實現一個比較全面的有限元分析方法的計算機輔助課件；當前基於web的各種應用越來越廣泛，但將基於網路的工程設計與有限元分析系統的面向對象構建其引入有限元分析以及土木工程設計領域還不多，基於netfeaf系統，作者又利用面向對象的方法實現了基於網路的重力式碼頭cad集成系統，以從根本上改變傳統的工程分析設計軟體的運行思路，使網路變成土木工程師的日常工作中心，系統部分成果通過鑒定（文通部鑒定為「國內領先，可以大大提高設計效率，建議在水運行業內盡快推廣使用」 ）推出后的良好試用效果，使面向對象的方法在土木工程分析設計軟體系統研製中的優勢得到進一步驗證。
  11. Compact and modularly built with a footprint of just 0. 8m2, they are the world s first a0 machines that can be stacked or separated. the plotter adopts a universal design allowing easy accessibility for engineering and manufacturing cad printing, copying and scanning. with smooth precision, excellent resolution and remarkable performance, docuwide 6050 6030 optimize office efficiency and maximize bottom line, making them the natural choice for today s engineering input output environments

    該數碼多功能一體機docuwide 6050 6030系列具有每分鐘5張a0的速度600 1200dpi質量的輸出解析度自動背景抑制等功能，而且它採用了高性能的控制器，具備高的可靠性和穩定性，實現了快速的數據處理和高性能的圖紙列印輸出它不僅具備復印列印掃描功能，而且能夠實現圖紙及技術資料的電子化管理，充分滿足圖紙的使用部門或管理部門對圖紙和技術文件數字化網路化的需求，實現工程文件和技術文件的統一管理。
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