載頻系統 的英文怎麼說

中文拼音 [zǎibīnxìtǒng]
載頻系統 英文
carrier frequency system
  • 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 ...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 統 : 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 ...
  • 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. This thesis researched the time synchronization method for 2d - ss system, and deeply discussed the bit error rate ( ber ) performance of multicarrier domain spread spectrum chip - level differential detection ( mc - ss - cldd ) in the presence of multi - user interference

    本論文從多載波擴頻通信系統出發，提出了廣義二維擴頻系統的同步演算法，並對多載波頻域擴頻碼片級差分檢測技術在多用戶情況下的系統性能進行了深入的研究。
  2. After achieving the synchronization of the pn code and carrier, despreading and demodulating the received dsss signal can be executed with the local synchronized code and carrier. so, lots of energy and fund has been expended on it

    直接序列擴頻系統只有在完成了偽碼同步和載波同步之後，才可能用同步的本地偽碼和本地載波對接收的擴頻信號進行解擴、解調。
  3. The design of power line spread spectrum carrier communication system in fpga with digtal technology

    的數字化電力線載波擴頻系統的設計
  4. Intelligent - vehicle ( iv ) technology plays an crucial role in guaranteeing safely driving. intelligent - vehicle video processing technology is one of the most important technology, and this result in research of intelligent - vehicle video processing system

    智能車載技術對于保證車輛安全駕駛起著關鍵作用，車載視頻技術是智能車關鍵技術之一，由此引發了對車載視頻系統的研究。
  5. The results of the experiment show this creative ac variable frequency speed - governing experiment system can realize the load relationship of direct electromagnetic torque between the motor group, get the continuous control process easily for the reaction load and potential energy load during four quadrant, achieve the total availability of the regenerate energy at any kind of load, and the system consumed power make up under 30 % of actual load power at any kind of load

    該方案研究獲得的實驗結果表明：這種具有創新特色的交流變頻調速實驗系統可實現電動機組之間直接電磁轉矩方式的負載關系，可方便地獲得電動機在反應或位能負載特性下四象限運行的連續控制過程，並實現了任意負載方式下再生能量的全部回饋利用，任意負載下系統消耗功率僅占電動機實際負載功率的30 %以下。
  6. The real - time mobile video surveillance system includes : the surveillance subsystem of control center, the station surveillance subsystem, the vehicle subsystems and transmission subsystems

    實時移動視頻監控系統包括：控制中心監視子系統、車站監視子系統、車載子系統和傳輸子系統。
  7. Fsk distribution automation using distribution line carrier systems - part 5 - 2 : lower layer profiles - frequency shift keying profile

    使用配電線路載供系統的自動配電.第5 - 2部分:低層分布圖.頻移鍵控
  8. Specification for group translating equipment used on carrier systems

    載波系統基群變頻級基本技術要求
  9. Specification for channel translating equipment used on carrier systems

    載波系統通路變頻級基本技術要求
  10. It really provides convenience to evaluate and optimize the design result. 3 ) vibration analysis has been fulfilled by calling some math libraries and graphic libraries in matlab to plot graphics such as velocity - time, displacement - velocity, step response, impulse response, gain - frequency and phase - frequency. we can know the capabilities of the spring system from the graphics

    3 、在matlab環境下調用相應的數學函數庫和圖形庫對設計的彈簧進行分析，繪制彈簧加載后系統的速度-時間響應曲線、速度-位移響應曲線、階躍響應曲線、脈沖響應曲線、增益-頻率響應曲線和相角-頻率響應曲線，根據曲線來分析系統的各項性能。
  11. Methods of measurement on receivers for satellite broadcast transmissions in the 12 ghz band ; part 4 : electrical measurements on sound data decoder units for the digital subcarrier ntsc system

    12ghz頻帶衛星廣播接收機的測量方法.第4部分: ntsc制式數字副載波系統
  12. Secondly, the model of ionospheric effects on spaceborne sar was made based on gauss envelope signals and rectangular envelope signals respectively

    接著分別基於高斯包絡和矩形包絡線性調頻信號，深入分析了電離層對星載sar系統的影響機理，並給出相關的定量表達式。
  13. Space - time block codes ( stbc ) based on orthogonal design has attracts enough attentions in its applications in mimo - ofdm systems for its full diversity exploiting and low coding / decoding complexity. these applications include not only system performance improvement, but also reduction of the peak to average power ratio in mimo - ofdm systems. under these backgrounds, this paper first studies space - time block codes under the single carrier, flat fading situation, discusses the encoding / decoding principle and its performance under different channels. then, the author focused on the performance of space - time codes under time selective and frequency selective channels, uncovered the fundamental cause of how maximum doppler shift and power delay profile influences the performance of space - time codes through deduction and simulation

    在上述背景下，本文以單載波，平坦衰落通道下的空時分組碼為切入點，深入分析了其編譯碼原理和在不同通道情況下的性能;以此為基礎，後文展開了對空時分組碼在多載波，時間選擇性和頻率選擇性衰落通道下的性能研究，通過理論推導和充分的模擬，揭示了空時/頻分組碼在時頻選擇性衰落通道中的性能變化的根本原因;在以上對多載波系統中空時分組碼的研究的過程中，作者發現了空時分組碼在降低系統峰平比方面應用的可行性，提出了一種降低峰平比的新方法。
  14. Multicarrier wireless communications have been widely investigated in the past decades. recently, two - dimensional spread spectrum ( 2d - ss ) system has drawn a lot of attention because of its full utilization of spreading characteristics in the frequency domain and time domain. compared with multicarrier code division multiplex access ( mc - cdma ), 2d - ss system can effectively mitigate multiple access interference ( mai ) due to spreading in the time domain

    當前多載波無線通信技術得到了廣泛的研究，二維擴頻通信系統是近年來提出的新的擴頻通信方式，由於二維擴頻系統從時域和頻域上分別對數據信號進行頻譜擴展，因此它同時具有時域擴頻和頻率擴頻通信系統的特點，是對傳統的一維時域直接序列擴頻和多載波擴頻的推廣。
  15. Spindle and circular knife force use cvt system and frequency conversion system, may do high and low adjusting speed and positive & negative switching control to achieve best cutting quality

    主軸與圓刀動力使用無級變速系統和變頻系統，可做高低調速及正反轉切換控制，達到最佳載切質量。
  16. Distribution automation using distribution line carrier systems - lower layer profiles - the spread frequency shift keying profile

    配電線路載波系統配電自動化.低層剖面.擴展頻率漂移鍵控剖面
  17. S - fsk distribution automation using distribution line carrier systems - part 5 - 1 : lower layer profiles - the spread frequency shift keying profile

    使用配線載波系統的分配自動化.第5 - 1部分:低層輪廓.擴展頻率移位鍵
  18. Real time video processing system of intelligent vehicle can detect obstacle to find out the potential danger to vehicle driving. at the same time, surroundings of the vehicle is displayed on lcd and alarm is given out in danger. extremely, the system make the vehicle brake away from danger

    車載視頻系統實時探測車到障礙物的距離，綜合判斷車輛行駛的潛在危險性，在顯示器上實時顯示汽車周圍的環境，出現危險情況時報警，極端情況下自動制動，使車輛遠離危險。
  19. Ss - ffh distribution automation using distribution line carrier systems - lower layer profiles - spread spectrum - fast frequency hopping ss - ffh profile

    使用配線配電線路載波系統的配電自動化.低層輪廓.擴展譜帶快速跳頻
  20. Ss - ffh distribution automation using distribution line carrier systems - part 5 - 5 : lower layer profiles - spread spectrum - fast frequency hopping ss - ffh profile

    使用配線載波系統的分配自動化.第5 - 4部分:低層輪廓.擴展譜帶快速跳頻
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