接收比特率 的英文怎麼說

中文拼音 [jiēshōubǐtèlǜ]
接收比特率 英文
receive bit rate
  • 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 ...
  • 收 : Ⅰ動詞1 （把攤開的或分散的事物聚集、合攏） put away; take in 2 （收取） collect 3 （收割） harvest...
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 接收 : 1 （收受） receive; reception; accept; [電學] receipt; receiving 2 （接管） take over; expropriat...
  • 比特 : [計算機] bit （信息量單位）比特波形 bit pattern; 比特差錯率 bit error rate [probability]; 比特緩...
  1. It contributes to the deeper comprehesion of these probability distributions, affords more detailed theoretical basis for further studying and simulating satellite mobile channels, ? theoretical analyses and discussions of the models which are often used in the study of the propagating characteristics of satallite mobile channels are given ; meantime, some discussions on the work of model simulations are also given, ? incorrect derivation of the equality between c. loo model and corazza model in some other papers is pointed out. via the conception of received power, we derivate that in the rural environments these two models really have the equal relationship by the way of theoretical derivation and simulatant fittings. therefore, it is able to use corazza model in studying the characteristics of satellite mobile channels in the rural environments and able to avoid the iterant work of modeling, in order to enhance the efficiency and accuracy of research work, ? detailed processes of simulating lutz model by using matlab6. 0 _ simulink4. 0 and the results of comparisions are given

    本文包含有以下的主要內容： ?對衛星移動通信通道傳播特性研究中常用的三個概率分佈給出了詳細的推導過程；以便對這幾個在衛星移動通信通道傳播特性的研究中常用的概率分佈函數有更深的理解，對進一步研究衛星移動通信通道傳播特性和對通道的建模提供了更為詳盡的理論基礎； ?對衛星移動通信通道傳播特性的研究中常用的通道模型進行了理論上的分析和討論，並對衛星移動通信通道建模的研究工作提出了一定的看法； ?指出了以前的文獻中關于c . loo模型和corazza模型的等同性的證明錯誤；並從接收信號功率的角度出發，通過理論推導及模擬曲線擬合重新證明了在鄉村環境下，這兩個模型的確是具有等同性的；從而在對鄉村環境下的衛星移動通信通道傳播特性進行研究時，可以只採用corazza模型來對實際的通道進行建模，這樣可以避免重復的建模工作並提高研究工作的效率和準確性； ?給出了lutz模型在matlab6 . 0 _ simulink4 . 0環境下的軟體模擬實現的詳細過程和整體模擬測試的對比結果，保證了該模型在硬體實現時的可靠性和可行性，從而可以將它們應用於指導模型的硬體模擬實現並可以降低硬體實現時的風險。
  2. The performance targets of acquisition and tracking : the code rate of pseudorandom signals is 1m - 5mhz, the code length is 255. 511, the receiving sensitivity is - 118dbm, the dynamic range is 70db. the doppler of carrier is 75khz, the time that 10 targets are captured within 0. 2s

    捕獲和跟蹤的性能指標：偽隨機信號碼率1m 5m比特/秒，碼長是255 、 511 ，接收靈敏度是- 118db ，信號動態范圍是70db載波普勒是75khz ，目標捕獲在0 . 2秒內。
  3. Space - time codes can be divided into tree mainly parts : bell layered space - time architecture ( blast ), space - time trellis codes ( sttc ) and space - time block codes ( stbc ). in this paper, we mainly compare the performance of blast and stbc in many aspects, such as design criterion, transmission rate, diversity gain, diversity combining, bit error rate and channel capacity etc. in this paper, we first respectively analysed the instantaneous received symbol energy - to - noise ratio of v _ blast in the diversity combining methods of maximal ratio combining ( mrc ), equal gain combing ( egc ) and selective combing ( sc )

    Mimo技術核心是空時編碼（ stc ） 。空時編碼主要分為三種:分層空時碼（ blast ） 、空時格碼（ sttc ）和空時塊碼（ stbc ） 。本文主要對分層空時碼和空時塊碼這兩種編碼方式在設計準則、傳輸速率、分集增益、接收合併、比特差錯率和通道容量等方面進行了較為詳盡的研究。
  4. From the second to the fifth chapter such problems concerning state - owned property right are illustrated respectively as its definition, valuation and price fixing and capital sources of undertaking party and the disposal and use of transfer income. problems are raised with regard to the process of current property right system diversity in state - owned enterprises, such as the disagreement to the definition of state - owned property right, no standard of evaluation, imperfection of price fixing system and relative confusion of transfer income disposal and use. what ' s more, new solutions are offered : the probe into state - owned property right definition " changsha model " is confirmed positively ; two specific ways of quantification - - " the method of average growth rate of state - owned property right " and " the method of average cost of labor in market " ; the concept " present value of earnings " is applied to the property evaluation of receivable accounts, finished goods, invisible assets and so on ; the unjust in price fixing of state - owned property right can be avoided by improving property valuation methods, perfecting capital market especially property right trading market and bettering information publishing system ; as to the guarantee problem of human resources financial contribution, an original key is offered

    第一章運用產權理論對國企產權多元化改革進行經濟學分析；第二章至第五章主要圍繞國有產權的界定問題、評估問題、定價問題、承接方的資金來源問題、轉讓收入的處置運用問題分別進行闡述，指出了當前國企產權多元化過程中存在著國有產權界定不統一、評估不規范、定價機制不完善、處置運用相對混亂等諸多問題，並提出新的解決思路：肯定國有產權界定「長沙模式」的積極探索意義，提出量化職工創造剩餘價值的「國有資產平均增長率法」和「平均市場勞動成本法」 ；將「收益現值」概念運用到對應收賬款、產成品、無形資產等資產評估之中；應從完善資產評估方法、完善資本市場特別是產權交易市場和健全信息公開機制三個方面來解決國有產權定價不公問題；就人力資本出資的擔保問題提出實際債務承擔額（比例）應小於名義出資額（比例）的新思路，並認為人力資本市場上的交易價格應包括絕對出資額和相對出資額兩部分。
  5. In the new model, the legitimate partners can control the error bit rate of the eavesdropper ' s channel by adjusting their virtual binary symmetric channels. when our new model is implemented, the problem of receiving synchronization of the partners will not occur

    在該模型中，通信雙方使用虛擬的二元對稱通道來控制竊聽方接收通道的誤比特率，而且使用該模型也不存在信息接收同步的問題。
  6. An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively

    基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵，即運動點目標的兩個位置相鄰近、灰度值一正一負，提出一種在復雜背景下，基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對，進而構造反相點對矢量圖，最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明，當信噪比大於或等於1 . 5時，可以有效檢測出運動點目標
  7. There will be a great future if we integrate solar energy utilization techniques into heat pump techniques. on the base of integrating the two techniques, the paper analyzed the art trait of heat pump water heater, the manner of integration, the essential theory ; and developed a small capacity direct expansion solar - assisted heat pump water heater, and tested its thermal performance on the condition of different weather such as sunshine, overcast sky & night. the results make clear a small capacity direct expansion solar - assisted heat pump water heater can absorb not only solar energy but heat energy in air ; it takes on favorable thermal performance, on the condition of different weather such as sunshine, overcast sky & night, coph is about between 3. 5 ~ 5. 0, eer is about between 2. 5 ~ 4. 5, these are better than traditional air source heat pump water heater and non - direct expansion solar - assisted heat pump water heater, and it takes between 2 and 3 kwh to heat 270 kg water from 20 c to 50 c, it is very great in terms of saving energy and protecting environment,

    本文在結合太陽能利用與熱泵技術的基礎上，分析研究了太陽能熱泵熱水系統的技術特點；太陽能集熱系統與熱泵系統的結合方式；直接蒸發式太陽能熱泵熱水系統的基本理論；研製出小功率直接蒸發式太陽能熱泵熱水系統樣機，並在晴天、陰天、夜晚等不同的天氣情況下對其進行了試驗，實驗結果表明：本小功率直接蒸發式太陽能熱泵熱水系統不但可以有效地吸收太陽能，還能有效地吸收空氣中的能量，具有良好的熱性能，在不同的天氣情況下，其制熱系數cop _ h大約在3 . 5 5 . 0之間，優于傳統的空氣熱泵和非直接蒸發式太陽能熱泵熱水系統：其效能比eer大約在2 . 5 4 . 5之間，將270kg水從20加熱到50隻需用電2 3度，節能及環保效果明顯。
  8. This inverse change has brought enormous pressure to local finance management, with the local self - financing rate ’ s falling, local fiscal especially county and township fiscal swamp becomes much worse, which directly hinders the sustaining, rapid and healthy development of local economy. it becomes a serious challenge and difficult problem during china ’ s reform and development

    這種收入比重下降和支出比重增加的逆向變化給地方財政管理帶來了巨大的壓力，地方財政自給率的不斷下降，地方財政特別是縣鄉財政的困境愈演愈烈，直接制約了地方經濟的持續、快速、健康發展，成為我國改革和發展所面臨的嚴峻挑戰和棘手難題之一。
  9. Rating measurement, one way of tv audience measurements, could reflect the requirement of the tv audience and always regarded as a standard on estimating the tv programs and decision the price of tv advertisement. so as a very important issue, the tv manager and tv producer pay more attention to rating measurement in recent years

    收視率調查作為電視媒體特有的受眾調查方式，可以比較直接的反映受眾的節目需求和滿意度，而作為衡量節目凝聚力以及電視臺時段價值的重要依據，收視率也是撬動廣告投入的重要杠桿。
  10. Adaptive modulation can also control quality of service according to transmitted information type and greatly increase capacity of system. the data frames in adaptive modulation communication system must be redesigned. because the sender must tell the receiver the current modulation mode by some bits in the data frame and the receiver must gain the current channel condition from the data frame in order to control its modulation mode and symbol rate

    因為發送方須通過數據幀中的某些比特來通知接收方當前的調制方式和符號速率；同樣，接收方也須從數據幀中某個域的比特流來獲得當前的通道條件信息，從而去控制其調制方式及符號速率。
  11. Second, this paper design the simulation scheme of bicm for comparing the performance over fading channel and awgn channel that combine 2 / 3 rate, 4 states punctured convolutional code with 8psk modulation, matching block interleave or random interleave, transform through rayleigh channel or awgn channel and use the way that combine coherent demodulation with viterbi decoding in receiver. design the scheme of bicm _ id that use the iterative decoding technique and the scheme of tcm for compare

    為了驗證bicm和bicm _ id在衰落通道和加性高斯白噪聲通道（ awgn ）下的性能，設計了一個2 / 3碼率， 4狀態的鑿孔卷積碼經過塊交織或隨機交織，與8psk調制相結合，在rayleigh通道下或awgn通道下傳輸，接收端採用相干解調與維特比譯碼相結合的bicm方案，在接收端引入迭代反饋譯碼的bicm _ id方案，以及與之相比較的tcm方案。
  12. However, multipath components can be resolvable due to the autocorrelation of the spread spectrum signal, thus the optimal receiver equals coherent rake reception, i. e. maximum ratio combining the independent components which endure flat fading or frequency non - selective fading. synchronization of pn code and separation of resolvable multipath components need to estimate the exact time delay among the multipath components

    但是利用擴頻信號的自相關特性，可分辨多徑可以被有效分離，最優接收機等效為對多個具有獨立平坦衰落通道（或頻率非選擇性通道）特性的多徑信號進行最大比合併，即相干rake接收。
  13. The direct solution for u ~ u and u ~ p form, the stagger solution for u ~ p form are compared in the convergency, stability and efficiency, from which it is concluded that the first solution used not widely before is characterized with weakly ill - conditioned stiffness and comparatively high efficiency. the finite element methods based on these three solving procedures are numerically implemented. the seabed soil under wave pressure with small amplitude can be viewed as elastic material

    詳細比較廣義biot理論u u形式直接解法、 u p形式直接解法與交叉迭代法求解彈性、彈塑性問題的收斂性、穩定性與計算效率，認為以往較少應用的u u形式直接解法剛度陣病態性弱，求解效率高，更適合土工問題的數值模擬，小風浪作用下海床的動力響應特性可視為彈性的。
  14. The simulation results show that the proposed detections benefit greatly from the pso and have significant performance improvements over conventional detector ( cd ) and previous multiuser detectors based on genetic algorithm ( ga ) or evolution programming ( ep ) in terms of bit - error - rate and convergence rate

    模擬結果表明，這種多用戶檢測器充分利用了粒子群優化演算法的優良特性，與傳統的碼分多址接收機、基於進化演算法的多用戶檢測器和基於遺傳演算法的多用戶檢測器比較，在誤碼率和收斂速度等方面都有顯著的改善。
分享友人
分享到 Line

分享到臉書