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synchronization algorithm中文是什么意思

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  • Chapter three provides synchronization algorithms in dvb-t cofdm receiver, including symbol timing recovery, carrier frequency error estimation and sampling timing recovery . chapter four introduces some channel estimation algorithms based on interpolation in dvb-t receiver . five estimators are compared, in terms of mean-squared error both in rayleigh channel and ricean channel
    第三章首先討論了由于載波頻率偏差、符號定時偏差和采樣定時偏差對ofdm系統(tǒng)所造成的影響和干擾,然后針對dvb-t系統(tǒng)的cofdm接收機方案,分別給出了符號定時同步、頻率同步以及采樣鐘同步的實現(xiàn)算法,并對它們的性能進行了分析仿真。
  • Considering mmog ’ s huge scale and the fundamental limitations of network programming, such as high packet latency, limited bandwidth and packet loss, mmog network engine must provide strong network processing abilities, meanwhile a synchronization algorithm among all the hosts is necessary so as to maintain the consistency of the whole game state
    因此,mmog網(wǎng)絡(luò)引擎必須具有極強的網(wǎng)絡(luò)處理能力,在固有的網(wǎng)絡(luò)延遲、不可避免的丟包以及有限的帶寬資源的情況下,能夠?qū)φ麄€游戲世界的狀態(tài)在服務(wù)器和客戶端之間進行同步,使玩家體驗到更好的游戲效果,并實現(xiàn)玩家之間數(shù)據(jù)的安全傳輸。
  • In this paper, consulting the idea of software radio and using the three important theories of maximum mean power estimate ( mmpe ) for symbol synchronization algorithm, the kalman decision-feedback equalization ( dfe ) algorithm and the decision-feedback phase lock loop ( dfpll ) algorithm, a kind of low frequency digital demodulate scheme over high-frequency ( hf ) radio channels for 8psk signial is realized
    本文利用軟件無線電的思想,提出了一種hf信道8psk信號低頻采樣數(shù)字化解調(diào)方案。討論了實現(xiàn)該方案的三個核心算法:最大平均功率定時同步算法、判決反饋式鎖相環(huán)和卡爾曼均衡器,分析它們的基本理論,并進行了性能測試。
  • Due to the multi-carrier transmission technology used in mc-cdma systems, almost all the previous synchronization algorithms in mc-cdma systems are derives from that in ofdm systems . they are suitable for ofdm systems, but they are not optimal for mc-cdma systems . the data symbols transmitted in mc-cdma systems have form of cdma signal, which is greatly different from normal binary signal
    傳統(tǒng)的各種mc-cdma同步算法主要還是借鑒了ofdm的同步算法,本文提出采用用戶擴頻碼作idft后在fft之前作同步,充分利用了ofdm信號中所包含的mc-cdma信號形式,它與純粹的ofdm傳輸?shù)亩M制數(shù)據(jù)不同,它與pn序列具有更好的相關(guān)性。
  • Second, this dissertation implements separately a mpeg-2 video decoder and a dolby ac-3 digital audio decoder based on software mode, and gives a audio & video synchronization algorithm based on audio-clock-benchmark in mpeg-2 system decoder, whose feasibility and practicability have been proved by experimenting . it is an all-purpose algorithm, which can perform different decoder according to mpeg-1 or mpeg-2 system models, and can also be used for reference to the implementation of other multiplex stream decoders
    然后,論文實現(xiàn)了基于軟件方式的mpeg-2標(biāo)準(zhǔn)視頻及ac-3格式壓縮音頻的實時解碼與回放,并依據(jù)mpeg-2系統(tǒng)解碼模型實現(xiàn)了一種基于音頻基準(zhǔn)時鐘的mpeg解碼器的視音頻同步算法,實驗證明該算法可行、實用、通用性好,對符合mpeg-1或mpeg-2系統(tǒng)標(biāo)準(zhǔn)的視音頻解碼器均具適用性。
  • Through a lot of experiments and simulations, analyzing the uwb channel model, studying on many papers, a new synchronization algorithm based on barker code and a new channel estimation method based on music algorithm are given . the simulation results of synchronization algorithm in which uwb channel model is used are gotten, and the channel estimation algorithm is demonstrated by measurement data . anyway, both of them get good conclusions
    本文通過大量的仿真以及實測的數(shù)據(jù)分析了信道模型,在參考了大量文獻的基礎(chǔ)上給出了較為實際的同步方法和信道估計方法,并進行了大量的仿真驗證,其中同步方法在結(jié)合信道模型的基礎(chǔ)上給出了仿真結(jié)論,信道估計方法最后應(yīng)用于實測數(shù)據(jù)當(dāng)中,得出了較為理想的結(jié)果。
  • Through a lot of experiments and simulations, analyzing the uwb channel model, studying on many papers, a new synchronization algorithm based on barker code and a new channel estimation method based on music algorithm are given . the simulation results of synchronization algorithm in which uwb channel model is used are gotten, and the channel estimation algorithm is demonstrated by measurement data . anyway, both of them get good conclusions
    本文通過大量的仿真以及實測的數(shù)據(jù)分析了信道模型,在參考了大量文獻的基礎(chǔ)上給出了較為實際的同步方法和信道估計方法,并進行了大量的仿真驗證,其中同步方法在結(jié)合信道模型的基礎(chǔ)上給出了仿真結(jié)論,信道估計方法最后應(yīng)用于實測數(shù)據(jù)當(dāng)中,得出了較為理想的結(jié)果。
  • Then time domain synchronization including symbol, frequency and carrier synchronization algorithms is discussed according to the characteristics of frame structure in merged scheme . at the same time, pointed out its merit that high rate of spectrum utilized and rapid synchronization retrieved . and simulation and much improvement are done to realize the algorithms in project
    然后根據(jù)融合方案的幀結(jié)構(gòu)的特點,分析和探討了時域同步算法,包括符號同步、載波頻率同步和采樣同步算法原理,指出時域同步有頻譜利用率高,同步恢復(fù)快等優(yōu)點,并對其進行了工程可實現(xiàn)的改進和仿真。
  • The goal we must achieve, when designing distributed parallel file system, was analyzed also . the thesis present the logic structure of dpfs, the structure and the flush strategy of the module of directory cache and its role in the read-write operation, duplicate table's physical and logical structure, the management and synchronization algorithm of the duplicate table, and the model and the management algorithm of the module of intelligent duplicate management . also the effects that dpfs exerts to the system reliability and the read and write performance compared to ext2 were analyzed
    本文首先介紹了數(shù)據(jù)存儲的發(fā)展概況與新的需求,分布式文件系統(tǒng)對其發(fā)展的重要影響以及設(shè)計分布式文件系統(tǒng)需要考慮的各種問題;然后分析了為滿足分布式并行服務(wù)器的功能需求,dpfs應(yīng)實現(xiàn)的目標(biāo);接著介紹了dpfs設(shè)計的總體邏輯結(jié)構(gòu),目錄緩存管理模塊的結(jié)構(gòu)設(shè)計、刷新策略以及該模塊在文件讀寫重定向中的作用,副本表的邏輯、物理結(jié)構(gòu)、對其緩存的管理和同步算法的實現(xiàn),以及副本智能管理的設(shè)計模型及其管理算法的設(shè)計與實現(xiàn),還分析了dpfs對系統(tǒng)可靠性的影響以及在讀寫文件時與ext2文件系統(tǒng)性能的比較。
  • Also symbol synchronization and frequency synchronization algorithms should be proposed and realized in ofdm receiver design . this article achieves physical layer basic emulation of ieee 802.11a wlan system with matlab6.5, and makes basic researches on symbol synchronization and frequency synchronization schemes of ieee 802.11a wlan system . new algorithm is also presented and emulated in the article as well
    本文主要利用matlab6.5實現(xiàn)了ieee802.11awlan系統(tǒng)物理層基本仿真,對ieee802.11awlan系統(tǒng)中的符號同步估計和頻率同步估計算法進行了研究,在此基礎(chǔ)上提出了幾種符號同步估計和頻率同步估計新的算法思路,按照新的思路構(gòu)造出了相應(yīng)算法并實現(xiàn)了仿真。
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