信元傳輸延時 的英文怎麼說
中文拼音 [xìnyuánzhuànshūyánshí]
信元傳輸延時
英文
mctd-
In all kinds of complicated network, oriented linking and unlinking, communication frequency resource is strained, and bandwith to transmitting audio frequency signal is too restricted, complicated and fluky, while audio frequency data exponential have been increased in the last several years. under the circumstances, based on the research of predecessor, this paper studies wavelet analysis ' s maths gist and practices significance on signal process, and puts forward a optimized wavelet package condensation arithmetic to process audio frequency data, which gives attention to coding efficiency, multirate and compression delay. simulation experiment on the arithmetic has been done by matlab
針對無連接和面向連接的各種復雜網路環境下，通信頻帶資源緊張，音頻傳輸帶寬有限且復雜多變，而各種音頻數據又日益增多的局面，本文研究小波分析在信號處理方面的數學依據和在數據壓縮方面的實際意義，在前人不斷工作的基礎上，提出了一種優化小波包變換編碼方案用於音頻數據的壓縮演算法，兼考慮了編碼效率、多碼率和壓縮時延多個方面，並在matlab環境下做了模擬實驗，對各種音頻信號及多種小波函數做了模擬結果比較，實驗結果證明該演算法可以在一定計算復雜度下可以很好地改進壓縮效果，達到多碼率下實現實時編解碼的過程，在高速dsp晶元等硬體設備支持下，可以有效應用於實際復雜多變信源編碼。We focus on study and design of medium access control ( mac ) protocol used in apon. the mac protocol must have excellent performance to certify as small transfer delay ( td ) and cell delay variation ( cdv ) as possible to meet all kinds of services besides no collision between cells
我們在本論文研究的重點就是設計一個媒質接入控制協議，使得用戶上行信元有序到達olt而不發生碰撞，同時保證各業務所要求的傳輸時延（ td ）和信元時延抖動（ cdv ） 。By theory analysis and computer simulation, dual control write sequence read medium access control protocol ( d - mac ) we bring forward works better than typical global fifo mac protocol. in order to let residential and small business customers enjoy all kinds of services that backbone network provides economically as early as possible, we design a switch hub
經過理論分析和計算機模擬，可以證明我們提出的雙控制寫入順序讀出媒質接入控制協議（ d - mac ）是一個非常有效的，比典型的globalfifomac協議具有更小的傳輸時延和信元時延抖動。White noise acting as inspirit signal, the experiment data is collected. utilizing these data and error back propagating identification method, different neuron and input - output delay are selected. by comparing approximation ability and generalization ability, the neural networks model in position mode and velocity mode is identified
並以模擬白噪聲為激勵信號，收集了數據;利用實際收集的數據，採用誤差反傳的辨識方法，選擇不同神經元及輸入輸出延時量的模型，通過比較網路的逼近能力和泛化能力，辨識得到了位置和速度兩種工作模式下的方位通道的神經網路模型。Once networks congested, the transfer delay grows up and the ratio of cell loss increases rapidly, and the sustained congestion will bring on the breakdown of the network
擁塞一旦發生，傳輸延時增大，信元丟棄率迅速上升，擁塞持續時間過長，還會導致整個網路崩潰。Last, with a view to the development of internet networks, the paper studies the impact of atm cell d elay on multimedia in the transmission system of video conference
最後，還結合internet網路的發展，研究了atm信元時延對視頻會議傳輸系統實時性的影響。Because the physical distance between ouns and olts in apon is different from each other, and the transmission distance will undergo dynamic changes as a result of the variation in environmental temperature and the aging of optoelectrical appliances, the differences in the uplink transmission delay will cause an overlay of the uplink time slots of onus, thus leading to the collision of different atm cell flows
由於apon中各onu與olt之間的物理距離各不相同，並且其傳輸距離也會由於環境溫度的變化和光電器件的老化等因素而發生動態的改變，引起上行傳輸時延差異造成各onu的上行時隙重疊，從而導致不同的atm信元流發生碰撞。And software method can resolve d channel ' s work for its less data communication ; 3 ) cpu 80c152 is synchronized with mc145572 by a simple synchronous circuit, avoiding the complex fpga interface circuit ; 4 ) data transmission use dma, which reduces the delay of data transmission and cpu occupying ; 5 ) 8bit software look - up table method can achieve 16bit crc quickly, which reduces the resource of both hardware and software
對通信數據量相對小的d通道，採用軟體實現裝幀與解幀。第三，採用結構簡單的外部同步時鐘電路實現80c152和接入晶元mc145572的同步傳輸，巧妙地避開了復雜的fpga介面電路。第四，利用dma技術完成數據快速收發，降低了數據傳輸時延及cpu佔用率。分享友人