載波傳輸系統 的英文怎麼說

中文拼音 [zǎizhuànshūtǒng]
載波傳輸系統 英文
carrier transmission system
  • : 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 ...
  • : 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...
  • : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
  • : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
  • 載波 : signal carrier; carrier wave; carrier: 3路載波 three channel carrier載波傳輸 carrier transmission...
  • 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
  1. A channel estimator for multi - carrier system in fast time - varying fading channels

    一種快時變通道下多載波傳輸系統的通道估計方法
  2. 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技術在本中的可行性; ( 2 )由dsss技術對濾的要求,根據濾理論分析了巴特沃思型濾器的逼近原理並設計了合適的濾電路; ( 3 )用調制解調晶元sc1128和自行設計的濾器加之輔助外圍電路,構造出低壓電力線通信,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入和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。
  3. This paper mainly focuses on the combination of ofdm system with the software radio technology and presents ofdm transceiver scheme based on software radio platform

    本文將軟體無線電技術和ofdm多調制技術相結合,提出了基於軟體無線電平臺的ofdm多載波傳輸系統方案。
  4. This thesis presents the studies of the physical layer of power line communications, which is an ofdm - based transmission system. it gives feasible algorithms, and primary implementation of some key modules is discussed as well

    本文主要的研究對象使基於ofdm的電力線通信的物理層,對電力線通道進行了著重的分析,給出響應的估計演算法以及硬體實現模塊。
  5. In this paper, the design and implementation of the carrier synchronization technology in the integrated anti - interference data transmission system have been investigated

    本文對綜合抗干擾數據同步及實現進行了研究。
  6. This paper introduces present application status of some media for image ( video ) transmission and puts forward the idea of the image ( video ) transmission system based on transmitting over low - voltage power distribution networks, which does n ' t require special transmitting networks

    本文對目前的圖像(視頻)使用不同介質的情況進行了分析以後,提出了基於電力的圖像(視頻)的設計方案,該能夠免除鋪設的圖像(視頻)網路。
  7. Recent research projects : one, multi - carrier cofdm dvb - t mobile tv transmission system. second, the military, public security wireless digital voice encryption image transmission network

    公司最近研發項目:一dvb - t多cofdm移動電視。二部隊公安無線數字加密圖像語音網路
  8. In technique rebuilding of system, discharge curve of ni - mh battery was measured, and power supplies in uav were improved. the security, adaptability and efficiency of miniature aerial rs systems could be improved obviously by microwave video transmission system and self - regulating blocking net in landing

    在對的技術改造中,測定了ni - mh電池組放電曲線,對無人機機電源做了改進,配合加裝的微視頻和自行研製的降落阻尼攔阻網可以大大提高無人機航空遙感的安全性、適應性和作業能力。
  9. With the support of hardware devices such as dsp chip, this arithmetic has effective application on complicated practice source coding. this paper alse applies wavelet to multicarrier modem / demodem transfer. the use of the induced wavelet package improves this arithmetic to search best wavelet package basis, and boosts up the support to multirate

    本文同時應用小變換到多調制解調方面,通過推導出誘導小包,改進最優小包基搜索演算法,增強了對多碼率業務的支持性,在多載波傳輸系統中,是有效的提高信干比的方法。
  10. Aimed at the characteristics that multi - carrier transmission is sensitive to frequency offset and require high synchronization performance, firstly multi - carrier ofdm technique is introduced, the influence of synchronization offset to ofdm system is analyzed and two kinds of typical synchronization methods are given based on pilot and cp in the paper

    針對多偏移敏感,對同步要求高的特性,論文首先介紹了多ofdm技術,分析了同步偏移對ofdm性能的影響,給出了基於導頻和循環前綴的兩種典型的同步方法。
  11. Under such background, we propose a new intelligent two - wire valve system based on power - line carrier communication and cebus. the key techniques involved in the intelligent two - wire valve are valve information abstraction, valve development, application research of cebus, power - line modeling and research of power - line communication technique

    正是基於這樣一種背景,在綜合國內外公開文獻的基礎上,我們提出了基於電力線和cebus現場總線的智能二線閥的概念,並對其相關關鍵技術進行了基礎研究。
  12. Considering the bandwidth efficiency, the error rate performance and the complexity for realization together, we construct a digital transmission system with single - carrier modulation technique using the optimum premodulation filter. then the system parameters and performance indexes are prensent

    綜合考慮帶寬效率、誤碼性能和實現復雜程度以後,構建出基於單調制技術的無線數字,並給出參數和性能指標。
  13. Synchronization acquisition technique is one of the most important techniques in any communication systems. in mc - cdma system, we exploit multi - carriers to transmit high - speed data, which is sensitive to the errors of synchronization, so synchronization is important, especially fast acquisition

    在mc - cdma中,利用多個數據,並且的是高速數據,它對的同步錯誤非常敏感,所以同步技術就顯得尤其重要,而且要求能夠快速捕獲。
  14. A new system, named single carrier block transmission system, is introduced, variable equalization techniques are developed and the performance and complexities are compared

    介紹一種,稱為單,並研究了其各種均衡辦法,比較了它們的性能與復雜度。
  15. Chapter iv advances a proposed systematic scheme of power line receivers in accordance with homeplugl. o on the basis of analysis in chapter iii, present the implementation of an ofdm baseband transmission platform based on mpc860t embedded system

    第四章在前幾章的理論基礎上,提出了適合於homeplug1 . 0的電力線通信接收機的方案,同時介紹了基於mpc860t的ofdm基帶平臺的嵌入式實現,對整個平臺的硬體和軟體構成都有較為詳細的介紹。
  16. In chapter 3, a carrier synchronization method is put forward, parameters and design of each part of the afc loop are described in detail, at the same time the carrier synchronization unit has been simulated using matlab language and its performance analyzed. simulation results show it efficient

    第三章基於綜合抗干擾數據中擴頻同步、自適應陣收斂和同步的關,提出一種適合並利於fpga實現的同步方法,詳細闡述了自動頻率控制( afc )環路主要部件的參數及電路設計,並對同步單元進行了matlab模擬和同步性能分析。
  17. In this paper based on the test and simulation of different power networks, the reliability and practicability of carrier communications are discussed and the impedance characteristic, transmission characteristic, the effect of noise on the low - voltage are also analyzed

    本文基於對不同電網環境下的情況進行綜合測試和模擬的基礎上,針對通信的可靠性、實用性進行了探討。分析了低壓電力網的阻抗特性、衰減特性以及噪聲特性影響。
  18. The influences of losses in optical transmission systems on carrier optical signal propagation are studied by using the conservation law and the viral theorem of the nonlinear system in this paper

    摘要文章採用非線性的守恆律和位力定理對光中損耗對光信號的影響進行了研究。
  19. The main contributions of this paper are proposing the algorithm and asic implementation scheme of carrier recovery applicable for dvb - c system. it also discusses the asic design skills for synthesis and dft according to practical experiences

    本文的主要貢獻在於分析研究了各種同步演算法,提出適用於dvb - c的實現演算法及結構,給出具體的asic實現,並結合實際經驗討論了面向綜合的asic設計技巧和可測性設計。
  20. Base on the chip - essc16 the hardware and software design of a low - cost, - cost, high - reliability power line carrier communication system are realized in the paper. the system has already applied in liaoning, hebei and shandong etc., the users are satisfactory with its communication reliability and transmission capability

    本文最後完成了基於esssc16晶元的電力線通信的物理層設計和軟體設計,該具有功能齊全、結構簡單、組建靈活的特點,目前已在遼寧、河北、山東等地安裝使用,在通信可靠性、質量上非常適合我國電力線現狀,用戶反映良好。
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