直接通信聯系 的英文怎麼說
中文拼音 [zhíjiētōngxìnliánxì]
直接通信聯系
英文
direct communications link- 直 : Ⅰ形容詞1 (成直線的; 硬挺的) straight; stiff 2 (跟地面垂直的; 從上到下的; 從前到后的) erect; v...
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 通 : 通量詞(用於動作)
- 聯 : Ⅰ動詞(聯結; 聯合) unite; join Ⅱ名詞(對聯) antithetical couplet
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 直接 : direct; immediate
- 通信 : communication; communicate by letter; correspond
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Traditional multiuser detector make good use of all signals which resuilt in multiple access interference so that it provides optimum mai resistance. ( 1 ) nevertheless, it assumes that the receiver can acquire the signature waveform and timing of desired user and the interfering users ; ( 2 ) it has no ability to suppress intercell multiple access interference ; ( 3 ) it cannot be applied in downlink channels. adaptive multiuser detector eliminates the need to know the signature waveforms and the timing of the interferes and has to need training data sequences for every active user
傳統多用戶檢測在單用戶檢測技術基礎上,充分利用造成多址干擾的所有用戶的信息進行聯合檢測,從而具有良好的抗多址干擾能力,但存在一些缺陷: ( 1 )不僅要求知道期望用戶的地址pn碼及其定時信息,還要求其他干擾用戶的地址pn碼及其定時信息; ( 2 )不能消除其他相鄰小區的多址干擾對本小區的影響; ( 3 )不能直接應用在cdma移動通信系統中的下行鏈路。The characteristics of precipitation anomalies in summer, previous and simultaneous ssta and preceding winter accumulated snow depth anomalies corresponding to positive and negative phases of 10 - yr mode and 25 - 30 - yr mode are discussed respectively. no matter for 10 - yr mode or for 25 - 30 - yr mode, reverse characteristics corresponding to positive phases and negative phases appear in the above fields. it proves that the decadal variation of sah have a good relation to the decadal variation of other key element of climate system and we can regard sah as a strong signal of the anomalies in the climate system
( 4 )夏季南亞高壓東西振蕩具有明顯的年代際變化特徵,本文分別討論了對應於10年周期態的正位相年和負位相年及25 - 30年周期態的正位相年和負位相年時夏季我國降水距平、前期及同期海溫距平及前冬青藏高原積雪距平的分佈特徵,發現無論是10年周期態還是25 - 30年周期態,對于夏季南亞高壓東西振蕩的正位相年和負位相年以上各要素場呈現為很好的反位相特徵,說明夏季南亞高壓的年代際變化與氣候系統中其他要素的年代際變化具有很好的關聯性,可將南亞高壓看作氣候系統中大氣子系統異常的強信號,通過分析南亞高壓的年代際異常可以更直接地研究和預測區域氣候異常。It provides a direct system interface between customs and the 6 air cargo operators and also the marine cargo terminal s operator for electronic communication to exchange cargo data and customs clearance instructions
該系統為海關和六個空運貨物經營商與及海運碼頭經營商,提供直接的系統界面聯系,讓雙方能以電子方式互通信息,交換貨運資料和清關指示。The china post is the communication enterprise which is established and administrated directly by the state, and with three main functions - - information transmission, delivery of goods, and finance circulation ; in today ' s society china post is the public and basic facility for the activities such as politics, economy, culture, education, etc, and for people to communicate
中國郵政是國家開辦並直接管理的通信行業,具有信息傳送、物品運遞、金融流通三大功能,是現代社會進行政治、經濟、文化、教育等活動和人們聯系交往的公用性基礎設施。Firstly, a new joint filterbank precoders and decision feedback equalizers structure is proposed, and the corresponding optimization result based on the maximal mutual information criterion is derived. secondly, the concept of dt canonical model is proposed, which is very suitable for the task of blind signal processing based on the second - order statistical of the observations. thirdly, the methods of blind equalization and identification of the tv dispersive channels are researched systematically based on the proposed dt canonical model, and a subspace blind identification algorithm of the time - invariant channel matrix is developed
本文創新性的成果在於:提出了預編碼-判決反饋聯合均衡系統結構,並從理論推導得出了對應的最大互信息量最優化設計結果;首次提出了時變色散通道的離散正則模型概念,該模型適宜於利用觀察數據的二階統計量進行盲信號處理;基於離散正則模型對時變色散通道進行了系統的盲均衡和盲辨識方法研究,提出了對時不變通道矩陣的子空間盲辨識演算法;針對誤差傳播效應問題,提出了可以消除誤差傳播效應的兩級盲辨識演算法;提出了基於離散正則模型的直接盲均衡演算法;提出了基於特徵恢復思想的神經網路直接自適應盲均衡演算法。Although most of this is frozen seafood, the occasional fresh seafood promotion is a great way for 5 - star restaurants and hotels to attract customers
由於貝升能與醫院及診所直接聯系合作,我們有信心能替dermylex創造市場需求並鋪設適當的行銷通路。Traditional inertial mechanized - platform uses velocities to damp the system attitude to improve the precision of attitude, when the system acceleration is small. referring to the idea, this paper designeda damp kalman filter in strap - down attitude heading reference system ( ahrs ). the new method makes use of 3 - d accelerometer ' s measurements to estimate the system attitude, which is measured to compensate attitude errors. because the acceleration affected the precision of fiher directly, the fuzzy adaptive system was presented. the fuzzy logic inputs are three accelerations and the output is to control the measurement noise covariance matrix. simulations and experimental results prove that the damp algorithm can damp most of schuler oscillation and foucauh oscillation, so that to assure the filter convergence and efficiently improve the precision of strap - down ahrs
在系統機動性不強的情況下,傳統的平臺內阻尼演算法將系統本身的速度信息通過阻尼網路加到系統中,達到提高姿態角精度的目的.將這種平臺內阻尼的思想引入到捷聯慣性航姿系統中,在系統加速度較小的情況下,利用加速度計的輸出估計系統姿態角,通過卡爾曼濾波的形式補償系統姿態誤差.由於加速度的大小直接影響濾波器精度,本文設計了模糊自適應卡爾曼濾波演算法,根據三軸加速度計的輸出調整內阻尼量測誤差方差陣,從而避免了濾波器的發散.模擬和實驗驗證,內阻尼演算法可明顯抑制舒勒周期振蕩和傅科周期振蕩,避免了系統姿態漂移,有效提高了捷聯慣性航姿系統的精度For the image acquisition of optical scan mode, normally, ccd image sensor is used to capture image, but in our system, due to the system request of micromation and high integration, cmos image sensor is adopted as the image collection device, and then the thesis gives a interface circuit between the chip and dsp and a control solution of image collection ; toward the information storage in our solution, dsp is directly linked to usb host chip and it is the dsp that accomplishes the processing of usb protocol and interface control so as to reduce the cost, minimize product cubage and consequently meet the requirement of system micromation ; at the same time, the thesis probes preliminarily into usb otg ( on - the - go ) technology, which offers an approach between embedded machines including pda, mobile phone, printer, digital camera and so on ; in addition, some attempts on the other application area with tms320vc5402 which was commonly used to voice processing and static image processing are done, for example, to arrange the chip to control lcd module directly
在圖像的光電掃描輸入上,傳統方案大部分採用ccd型圖像傳感器,而在本方案中,根據系統微型化、高集成的特點,使用了cmos圖像傳感器作為攝像器件,並且設計了該晶元與dsp的一種介面電路以及圖像採集控制方案;在信息存儲上,本方案採用dsp直接與usbhost晶元連接,由dsp處理usb協議和介面信息,從而降低了系統成本、縮小了產品體積,滿足了系統微型化的要求;同時本論文也對usb - otg技術進行了初步探討,利用此項技術,不再需要計算機作為主機,就能實現在pda 、移動電話、印表機、數碼相機等嵌入式應用之間直接互聯通信;另外也對廣泛用於語音處理和靜態圖像處理的tms320vc5402其它方面的應用進行了嘗試,比如直接控制液晶顯示器等。The ldpc code ’ s parity check matrix generated by this scheme has high girth and can be used to coding directly, the coding complexity is lower. as to the decoding algorithm, i modify the message passing algorithm based on the girth that i can get in the structure of parity check matrix to improve the decoding performance. what is more, the new structure of the parity check matrix is easy to implement with the hardware
接著著重圍繞ldpc碼的校驗矩陣構造方法和譯碼演算法展開討論,在比特填充演算法的基礎上提出了一種ldpc碼聯合編譯碼方案,通過該方案構造的校驗矩陣不僅具有良好的girth分佈,而且能直接用於編碼,編碼的計算復雜度低;在譯碼方面,利用構造奇偶矩陣過程中girth分佈信息,優化解碼迭代過程,能有效提高系統性能;並且該方案構造的校驗矩陣更易於實際的編譯碼硬體實現。If you ' re interested in this position, i ' d encourage you to both apply through the official channels and to send me your resume directly ( jimhug at you know what company. com )
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