無誤傳輸 的英文怎麼說
中文拼音 [wúwùzhuànshū]
無誤傳輸
英文
error-free transmission- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 誤 : Ⅰ名詞(錯誤) mistake; error Ⅱ動詞1 (弄錯) mistake; misunderstand 2 (耽誤) miss 3 (使受損害...
- 傳 : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
- 輸 : Ⅰ動詞1 (運輸; 運送) transport; convey 2 [書面語] (捐獻) contribute money; donate 3 (失敗) l...
- 無誤 : errorless; error free; without error
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In this thesis, firstly, we put forward a new algorithm of the synchronization of carrier reference phase, that is to use the curve synthesizing with the general digital carrier phase looper to have an estimation on carrier frequency within 10 ms so as to meet the need of meteor burst communication. we have done some simulations to get the performance of carrier frequency estimation using two modulation modes ( 16qam and 4 - qpsk ), and had some test on the carrier phase looper in conditions when using different baud rate transmission and when the baud tuning have windage
我們對兩種正交調制方式( 16qam和4 - qpsk )進行了模擬工作並給出了模擬結果,同時討論了碼元同步定時誤差對鎖相環路工作的影響並根據流星通信中使用變速率傳輸時鎖相環路的載波同步性能進行了測試;然後在基於軟體無線電思想的數字處理平臺(該數字處理平臺實現了中頻數字化)上用dsp軟體完成了載波的相位跟蹤。However, video communication can tolerate some kind of data error or loss and different parts of video bitstream have unequal error sensitivities. so we need new error control methods designed especially for video communicaton
同時視頻數據能夠容忍一定的誤碼和丟失,並不需要絕對的無差錯傳輸,而且視頻數據流的不同部分對錯誤的敏感度也不同,因此有必要也有可能根據視頻通信的特點研究新的差錯控制方法。Though wide - band has been used widely, it ' s not wide enough to watch high - quality real - time video. futhermore, wiless communicaton has become a hot technology, it has limited band and unstable communication channel which result in high percentage of errorness in this situation, if people want to watch realtime video, it has high demand that video producer compress the video as small as possible when quality is good enough and receiver have ability of error resilience
另外,無線通信已經成為當前it領域的一個大熱點,對無線通信來說,帶寬就更加有限,並且傳輸線路不穩定,錯誤率高,在這種情況下,如果想通過無線網路在線觀看視頻,必然需要視頻發送端在保證質量的情況下對視頻進行盡可能的壓縮,同時提供強大的糾錯和抗錯能力。Hdlc uses synchronous serial transmission providing error - free communication between two points
高階資料連結控制使用同步串列傳輸,提供兩端無錯誤的通訊。First of all, we bring forward the basic project of tadil, which adapts to combined operations. it is suggested to use tdma ( the abbreviation of time division multiple access ) as the working pattern and utilize the concept of mobile ad hoc network to construct the data link network. aiming at the impact of time delay on data link and the characteristic of cooperative combat under the command of director aircraft, this thesis applies a kind of kalman filtering algorithm in polar coordinates to compensate the error of time delay, and then does the transformation of target motion parameters to obtain the current information of target
本文結合空軍裝備部某「十五」預研課題,圍繞著戰術數據鏈、多機協同多目標攻擊、超機動攻擊、空對地攻擊這四個方面展開了一系列的研究工作:本文首先給出了適應三軍聯合作戰的戰術數據鏈系統的基本方案,建議採用時分多址的工作模式,並利用移動自組織網路的概念構建數據鏈網路,同時針對數據鏈傳輸信息的時間延遲特性和指揮機指揮下的多機協同作戰特點,應用一種極坐標系下的卡爾曼濾波演算法對該傳輸延遲誤差進行補償,並在此基礎上進行目標運動參數的轉換,以獲得目標相對于某無人機的當前運動信息,且利用模擬驗證了方法的有效性。The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above
但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾,同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術( orthogonalfrequencydivisionmultiplexing , ofdm )正是一種解決符號間干擾的有效傳輸手段,因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感,如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的,本論文將重點針對這兩個問題進行討論。An algorithm of fec ( forward error correction ) system and it ’ s fpga implementation were researched, . then the fec system was applied to an audio transmission platform. the platform can decrease the error bit rate to 1 10 - 7 when channel error bit rate is 3 10 - 3. veriloghdl was chosen to design the circuits
研究了一種前向糾錯( fec )演算法及基於fpga的相應電路設計,將此電路應用於數字音頻無線傳輸,搭建了一個完整的數字音頻無線傳輸平臺,當無線通道誤碼率為3 10 - 3時,經過該糾錯電路可以降低到1 10 - 7以下。The remote measurement system of the torque was designed, used wireless transmitter and receiver devices to transmit the signals, avoiding the errors which brought by slip ring, and solving the problems that are the space narrowness or connecting difficulty for the moving objects
設計了扭矩遙測系統,使用無線發射接收裝置進行扭矩信號的傳輸,避免由集流環傳輸數據時帶來的誤差,而且解決了空間狹小或是被測物體處于運動之中而導致引線困難等問題。This means the tcp modules guarantee the delivery with no duplication, no transmission errors, and the data transmitted in the correct order
這意味著tcp模塊保證傳遞無重復、無傳輸錯誤,而且數據以正確順序傳輸。We study and analyze the problems of wireless asymmetric network applications using the original tcp / ip as system transport layer protocols. it is the high error rate in wireless asymmetric link, high - latency, tcp / ip performance deteriorated because of the asymmetric data streams that depressed the efficiency of the utilization coefficient of the wireless link
分析了基本tcp ip作為系統傳輸層協議用於無線非對稱環境下存在的問題,主要是無線傳輸的高誤碼率、較大的延遲,及鏈路非對稱性導致的tcp ip性能惡化,從而降低了無線鏈路的利用率。The information will then be directly transferred to the back - end computer system of their company
親身輸入工作匯報資料,有關資料將直接傳入企業的電腦系統,確保資料無誤。( 1 ) for wireless physical layers, the efficiency function is defined to quantify the upper layer throughput per unit of wireless resources while maintaining a certain maximum remnant bit error rate subjected to a certain snr
( 1 )針對無線物理層,引入效率函數來表徵在一定殘余誤碼率ber要求和一定通道信噪比snr情況下,上層應用正確傳輸的數據量和下層無線資源的關系。The customer of the post office remittance, be the company to receive the telegraphic transfer with of the certificate fax piece combine after confirm without any error, the company will arrange the warehouse according to your the conveyance method for specify, sending out goods within 24 hours.
郵局匯款的用戶,當公司收到電匯憑的證傳真件並經確認無誤后,公司將安排倉庫按照您指定的運輸方式,將貨物在24小時內發出。Robust wireless image transmission based on space - time block codes and unequal error protection
基於空時非均衡錯誤保護的無線圖像魯棒傳輸This thesis presents a forward error correction ( fec ) algorithm and its circuit implementation, which is used in the wireless digital audio transmission system. also, an entire demo platform is built and error - correction ability of the system is tested based on this platform
本文研究了一種應用於數字音頻無線傳輸系統中的前向糾錯( fec )演算法和相應的電路設計,搭建了一個硬體驗證平臺,並在驗證平臺上完成了電路的誤比特率測試。This paper proposes a multiple description mesh - based motion coding method, which generates two descriptionsfor mesh - based motion by subsampling the nodes of a right - angledtriangular mesh and dividing them into two groups. motion vectorsassociated with the mesh nodes in each group are transmitted overdistinct channels
丟包由於網路阻塞路由延遲以及從高容量網路向低容量網路交換等和通道失效由於衰落效應和突發錯誤等使得在internet和無線通道上壓縮視頻數據的可靠傳輸成為新的研究課題。Cpu organizepan read signals compare to 20 behinds surenesses behinds carrys out
,皆由cpu辨讀輿比對無誤后執行,而達到信號正確傳輸功能The proposed md mesh - based motion coding methodis then combined with the pairwise correlating transform, and acomplete md video coding scheme is proposed. further measures are takento reduce the mismatch between the encoder and decoder that occurs whenonly one description is received and the decoder reconstruction isdifferent from the encoder. the performance of the proposed scheme isevaluated using computer simulations, and the results show, compared toreibman s md transform coding mdtc method, the proposed schemeachieves better redundancy rate distortion performance
數據重傳必然會引起延遲,因而在需要很短延遲的應用中是行不通的,如雙向無線通信同時在以廣播方式進行數據傳輸時也是行不通的當有大量突發錯誤時,糾錯碼如分組糾錯碼block code及卷積碼convolutional code無法在不產生額外延遲及需要額外運算的前提下對數據提供足夠的保護而錯誤掩蔽的性能則受接收到數據與丟失數據之間的殘留相關性大小的影響。Parity is an error - checking procedure in which the number of 1s must always be the sameeither even or oddfor each group of bits that is transmitted without error
奇偶校驗是一個錯誤檢查過程,其中每組無錯傳輸位的1的數目必須始終相同,即或奇或偶。Embedded image coding is especially fit for the changeful and fallible environment, such as internet / wireless transmission, image browse etc. the output bit stream of the embedded code can be truncated and reconstruct image for practical applications to achieve varying degrees of scalability and different target bit rates or distortion
嵌入式編碼可以應用於網路、無線傳輸,圖像瀏覽,特別適合於容易發生誤差的環境。為了滿足目標比特率或者誤差要求,通過監視編碼的一些參數,嵌入式的編碼器可以在任何一點終止編碼。分享友人