鍵錯率 的英文怎麼說
中文拼音 [jiàncuòlǜ]
鍵錯率
英文
keying error rate-
Turbo codes represent the new code structures, which consist of pccc ( parallel serially convolutional code ) and sccc ( serially concatenated convolutional code ). in this paper, the background of turbo codes are firstly introduced, which includes the base principle of error correction code 、 block code and convolutional code ; the principle of turbo code and the iterative decoding is secondly expanded ; the key decoding algorithm : a revised map algorithm and iterative decoding theory are detailed ; then, a new turbo code structure : hccc ( hybrid concatenated convolutional code ) is presented, and the capacity of this code method is analyzed, the average capacity upper bound is derived ; at last, this code is simulated on awgn ( additive white gaussian noise ) channel and rayleigh fading channel
本文首先介紹了turbo碼的背景知識，包括差錯控制的基本原理、分組碼和卷積碼；然後闡述了turbo碼的基本原理，包括turbo編譯碼器結構及迭代譯碼原理；較為詳細地描述了關鍵的譯碼演算法： ?種改進的最大后驗概率（ map ）譯碼演算法及迭代譯碼演算法；提出了一種新的turbo碼結構：混合turbo碼（混合級聯卷積碼） ；並用編碼性能聯合界分析方法對混合turbo碼進行了性能分析，得出了其平均性能上界；並在高斯白噪聲通道和瑞利衰落通道上分別作了一些應用研究及計算機模擬實驗。Because of the unique issues in the networks, including mobility - induced disconnection, network partition, high out - of - order delivery ratios and channel errors, the congestion control and the error recovery in the network is challenging. in this environment, the interaction between tcp and mac layer protocols, the affection of route protocols on the performance of tcp and the particular congestion control and error recovery mechanism are first discussed. then a particular transport layer protocol scheme based on the non - feedback mechanism is presented, with emphasis on the analysis and simulation of the key parameter
文中主要討論了兩種不同網路結構中的無線tcp協議改進方案，其一在最後一跳為無線鏈路的網路環境中，針對基本tcp擁塞控制機制存在的缺陷，文中在現有解決方案的基礎上提出一綜合性的方案，其中包括無線鏈路的高誤碼率和連接斷開問題的解決，並重點對方案中出現的交叉層問題進行分析和模擬；其二，考慮的是分散式網路（ adhoc ） ，在文中較為詳細的分析了tcp和mac層機制間的相互作用、路由協議中造成tcp性能降低的因素、 adhoc網路中應採取的特殊擁塞控制和差錯恢復機制，在此基礎上提出了一種採用非反饋機制的解決方案，重點對方案中的關鍵參數進行分析和模擬，分析和模擬結果表明此機制可在很大程度上提高adhoc網路中tcp的性能。Zhou shengyu （ computer application ） directed by chen xiaomin because of the radiation in space enviroment, the data in sram of the aerospace computer will nomally experience single event upset ( seu ) errors at a scale of small probability. had not been corrected in time, these errors would effect not only the performance of the computer system but also the transmission of the key data.
由於輻射導致的單粒子翻轉效應seu （ singleeventupset ） ，使得航天計算機上的靜態存儲器sram中的數據可能出現小概率錯誤，這種錯誤若不及時進行糾正將會影響計算機系統的運行和關鍵數據。2. adopting measure of china ' s stated - owned enterprise institution innovation is : ( 1 ) it must be establishing a fairly and competing economic institution, in which different ownership enterprises can compete on an equal footing, in order to improve its macro - efficiency
因此，創造多種所有制企業公平競爭的經濟體制環境是國有企業提高效率、消除預算軟約束的關鍵。 （ 2 ）國有企業效率低下的中觀因素在於產業區位錯位。Abstract : in this paper, the best selection of key parameter helix angle is discussed for all kinds of cross helical gear transmission in order to raise efficiency, reduce wear, obtain lighter weight and less size of bearing
文摘:從提高效率、減少磨損、減輕重量和較小軸承尺寸的角度出發，綜合探討了交錯軸斜齒輪傳動的各種組合中，關鍵參數螺旋角的最佳選擇The detailed parts of the mpda tracker are described in detail. and the demonstrations of main formulas are also given. in particular, how to incorporate the close multipath detections and multiple propagation modes is proposed
對多徑概率數據關聯（ mpda ）跟蹤器的各個部分進行了詳盡的介紹，並給出關鍵部分的證明過程，其中提出了多徑量測和多個傳播模式進行合併的思想，同時還改正了參考文獻中的錯誤。分享友人