載波技術 的英文怎麼說

中文拼音 [zǎibōjìshù]
載波技術 英文
zap
  • 載 : 載Ⅰ名詞（年） year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 技 : 名詞（技能; 本領） skill; ability; trick; technique
  • 術 : 術名詞1. （技藝; 技術; 學術） art; skill; technique 2. （方法; 策略） method; tactics 3. （姓氏） a surname
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  1. In this paper, after introduction of the code division multiple access ( cdma ) and orthogonal multicarrier ( mc ) technique, the system model of mc - cdma is analyzed and the bit error rate ( ber ) performance in downlink and uplink channel is shown in awgn channel by computer simulation

    本文在碼分多址技術和正交多載波技術原理基礎上，分析了高斯白噪聲通道中多載波碼分多址（ mc - cdma ）系統的數學模型，並且使用不同的擴展碼對下行通道和上行通道誤碼率性能分別作了計算機模擬分析。
  2. By the simulation, it is indicated that the curve motion model based on the particle can describe the curve motion of the target. and it is shown that the performance of the ukf algorithm is more precise than the tradition nonlinear filtering technique. by the contrast between the simulation results and the positioning result of commercial data process software,

    模擬結果表明，基於質點的曲線運動模型可較準確地描述進行曲線運動的載體; ukf演算法作為衛星導航系統的非線性濾波技術，較之傳統的線性濾波技術可獲得較高的定位精度;其定位結果與商業數據處理軟體相比，可滿足定位精度要求，該演算法可以直接應用於衛星導航系統的軟體實現。
  3. In the paper, prescale technology, interpolate method, averaging method and multiple period synchronization method are used to measure the frequency accurately. diode demodulating technology, and power attenuated method or probe coupling & water load technology are employed to measure the power of high power microwave. isothermal technology is used to improve the stability of demodulator and to expend the range of square linear region

    本文採用預分頻法、內插法、多周期同步法、平均法實現了頻率的精確測量;利用二極體檢波技術，結合衰減法或探針耦合+水負載技術實現了大功率微波功率的測量;採用恆溫技術提高了二極體檢波器穩定度;完成了單片機串口通信協議設計和系統電磁兼容的分析和設計。
  4. Refer to the impacting - echo technology, we impacted the apex of the steel bar and incepted the reflecting stress ave through the resonator that fixed on the apex of the steel bar, and the value of the consolidating wave speed was calculated based on the time of stress wave transmitted and the length of the steel bar, so, identifying the reflecting signal is the key of the consolidating wave speed method

    借鑒于沖擊回波技術，固結波速的測定方法是在鋼筋測桿的出露端施加瞬態沖擊載荷，由安設在測桿頂端的傳感器接收反射應力波信號，根據應力波的走時和測桿的長度折算固結波速的大小，因此反射信號的識別是固結波速法檢測混凝土強度的技術關鍵。
  5. The electric wire high frequency carrier wave technology is very important and widely used in electric power industry and other fields. however the existing testing instruments for high frequency carrier wave channels are lagged and in creasing need for improving

    電力線高頻載波技術在電力行業和其它相關領域得到了廣泛應用，具有十分重要的地位，但現有的載波通道測試設備卻比較落後，急待改進。
  6. In the system, the low voltage power line is the first signal tunnel without any other relay equipments between customer terminal and substation collector, public telephone line serves as the second signal tunnel between substation and management center computer. as a breakthrough of conventional concept of electricity meter, this thesis initiate a new concept, namely, intelligent power customer terminal ( shortly, customer terminal ), which is developed with spread spectrum plc communication functional and possesses many advanced functions, such as, in addition to electric energy acquisition, guarding against electricity pilfering, preventing wrong connection, protecting malfunction, remote communication ( for example, remote power supply or halt, remote configuration of electricity meter, remote load control, etc ), and so on

    本文首先系統地總結了目前國內外低壓電力網數據傳輸技術的研究現狀和存在的問題，在此基礎上，從理論上論證了在低壓電網上應用擴頻載波數據通信技術的可行性和優越性，並重點論述了擴頻載波技術抗電力線噪聲干擾的機埋；本文提出了一個新穎的基於低壓電力線擴頻載波通信技術的集中遠抄系統的總體方案，即由用戶終端、集中器和電能管理系統所組成的網路系統，其中，用戶終端到配變集中器用低壓電力線作為通道，中間無需其他硬體中繼設備，集中器到電能管理系統用公用電話網作為通道。
  7. Judging from above mentioned, we have well known the selection of ammeter and mode of communication is very important, which is directly related to ups and downs of amrs. so later the conditions is presented that make the amrs of residential quarters come true

    在自動抄表系統中，電能表和通訊方式的選擇很重要，它直接關繫到應用系統的成敗，因此在後面的文章里，指出實現基於低壓電力載波技術的社區電能自動抄表技術的條件。
  8. First we should analyze the user ' s needs, then should we start our work : designing the configure of database, planning the interface of the users, how to communicate via the serials, the management of the system ' s users, and so on. because the technology of spread spectrum carrier ( ssc ) communication is the kernel of the power carrier technology of communication, so we then explicate the chips we use here

    首先，本文介紹了電力載波技術及自動抄表系統在國內外的發展；接著，簡要描述了整個抄表系統的構成，本套系統由計費終端（用戶電表、水表、煤氣表等，本系統主要針對用戶電能表）數據採集器、集中控制器和中心管理軟體四部分組成，實現遠程集中自動抄錄電能表數據。
  9. Now cdma is very mature and becomes the key technique of the third - generation mobile communication systems. more and more attention is paid to the technique of multi - carrier. mc - cdma is combination of ofdm and cdma, thus advantages of both techniques are exploited

    近年來移動通信技術發展迅猛，碼分多址技術到目前已經非常成熟，並成為了第三代移動通信系統的核心，人們將眼光聚集在正交頻分復用調制技術，將多載波調制技術應用於cdma中，從而兼具多載波技術和cdma技術的優點。
  10. Alcatel has made available a passive optical network equipment. designed as a broadband access technology or overlapped network for newly built residential zones, such equipment will be used as supplement to dsl and digital loop carrier technology

    Alcatel推出一種無源光網路設備，定位於作新建住宅小區的一種寬帶接入技術或作為一種重疊網路，作為對dsl和數字環路載波技術的補充。
  11. Based on the power - line channel model, we analysis and simulate the performance of the varies communication technique under the real power - line circumstance. we point out that the high voltage power - line carrier communication technique is not fit to the low - power carrier communication circumstance

    並對三種主要載波技術在電力線上的傳輸性能進行了模擬研究，給出了模擬結果，該基礎研究對國內同行有較大的參考價值。
  12. This project focuses on r & d of home network, especially in communication between the devices in home. after learning the popular home network architecture around, a new solution for communication in home was proposed based on power - line carrier communication technique and digital communication technique. a new home network repeater was also developed under this idea frame

    本課題主要針對目前家庭網路發展迅速的情況，對家庭網路設備之間進行數據互通方式的發展進行了研究，結合目前流行的家庭網路組網方式，電力線載波技術和數字通訊技術，提出了一種新型的家庭網路設備之間的互聯方案，並按照這個思路設計出了實現這個方案所需的網路中繼設備。
  13. A remote record system is designed based on power line carrier communication

    本文運用電力線載波技術設計了一種遠程抄表系統。
  14. In this paper, aiming at the control communication problem of satellite communication antenna system, the particularity of the communication part of the equipments which have relative movement is analyzed, and comparing to formerly communicationg project, a new project to resolve the communication problem is put forward, namely lower voltage power line carrier technology

    本文針對衛星通信天線系統中的控制通信問題，分析了有相對運動設備間通信的特殊性，並與之前所用的通信方案進行了對比，提出了一種新的方案來解決該通信問題，即利用低壓電力線載波技術來實現通信。
  15. So cdma is irrefutablely competitive. however, the capacity of conventional cdma communication system is confined by multi - access interference ( mai ) and multi - path interference ( mpi )

    但是cdma的容量卻受限於多址干擾與多徑干擾，而多載波技術具有很強的抗多徑干擾的能力。
  16. Chapter 1 gives a brief description of the development of mobile communication and software radio technology, followed by expatiation on theory of ofdm and ofdm - cdma

    第一章介紹了移動通信和軟體無線電技術的發展歷史和發展趨勢、並簡要介紹了ofdm多載波技術以及ofdm ? cdma系統的原理。
  17. My work focused on the experiments and research of the communication system through power lines based on the spread spectrum theory and analyzed the advantages and main problems of the system

    重點對電力線的擴頻通訊系統做了大量的實驗和研究，分析了擴頻載波技術在電力線通信系統中的優勢和主要問題，並提出了延長電力線傳輸距離的措施和方法。
  18. The article proposed a technical solution to the application of low voltage electricity lines carrier distribution transformers the area users identify devices designed programme, a detailed account of the operating principles of the devices and hardware

    摘要提出了一種應用低壓電力線載波技術解決配電變壓器臺區用戶識別裝置的設計方案，詳細介紹了該裝置的工作原理和硬體組成。
  19. With mc - cdma, each data modulated chip of the user specific spreading code is mapped onto a separate subcarrier after spreading and scrambling, so that the chips of the spreading code and, hence, the data symbol is transmitted in parallel on multiple subcarriers

    Mc - cdma是將多載波技術應用於cdma中，兼具cdma和ofdm這兩種技術的特點。在mc - cdma中，用戶的信息符號先經過擴頻、加擾，再將擴頻序列的碼片并行地在多個子載波上傳輸。
  20. This article briefly presented the principle of lower voltage power line carrier technology and spread spectrum technology, and discussed the advantage, the mode, the current state of spread spectrum technology applied to lower voltage power line carrier communication, and analyzed the channel transmission characters of lower voltage power line with mechanical contact

    在本文中，簡要闡述了低壓電力線載波技術和擴頻技術的原理，討論了擴頻技術在低壓電力線載波通信中應用的優點、方式和現狀，並通過大量實驗，分析了帶機械接觸的低壓電力線路的傳輸特性。
分享友人
分享到 Line

分享到臉書