塊誤碼率 的英文怎麼說
中文拼音 [kuāiwùmǎlǜ]
塊誤碼率
英文
bler block error ratio-
The research work that is innovative and advanced belongs to project application about software and hardware. for resolving question of realtime status information monitoring and measuring system of lines of communication on launch of aerospace, multi - line level measuring model 、 error - code rate measuring model and line - switch controlling model were designed and carried out basing on requirement of users. a reasonable scheme was brought forward for state of system 、 information processing and long - distance monitor and control
本課題屬軟硬體結合型工程應用項目，解決航天發射中通信線路狀態信息的實時監測問題，在充分研究用戶需求的基礎上，設計並研製了多路電平測量模塊、誤碼率測試模塊、線路控制交換模塊，並就系統工作狀態的建立、各類信息的處理和遠程監控提出了合理的解決方案。Bber background block error rate
背景塊誤碼率The fourth chapter introduces the designing and im - plementing about the hardware of high speed bert, and gives some actual design cir - cuits. the fifth chapter introduces the designing and implementing about the software of high speed bert, and gives the simulation results of some program blocks and top block. the testing parameters are given in the sixth chapter
本文第二章介紹數字通信及復接技術的有關理論;第三章介紹高速誤碼率測試儀發端子系統的設計方案;第四章介紹高速誤碼率測試儀的硬體設計及實現過程，並給出了一些實際設計電路;第五章介紹高速誤碼率測試儀發送端軟體設計及實現過程，並給出了各程序模塊及頂層模塊的模擬結果;第六章給出了高速誤碼率測試儀發送端的測試參數。The standard is designed to give a new technical solution for a broad range of applications, such as very low bit rate conversational services and entertainment quality broadcast, interactive video - on - demand services etc. for the enhancement of the coding efficiencies, the new standard adopts new tools as following : multiple reference pictures, variable block - size with seven block sizes in motion prediction, quarter - pixel accuracy for motion vector, short word - length integer transform, context - adaptive entropy coding and loop filter deblocking
H . 264 / avc標準支持從低帶寬、高誤碼率的無線移動視頻通信到高帶寬、低誤碼率的有線視頻廣播等多種應用，因此，日益受到業界的關注。為了實現更高的編碼效率， h . 264 / avc標準採用了很多新的編碼技術，如多參考幀預測、多尺寸編碼塊模式、 1 / 4像素精度運動矢量、整數變換量化、基於內容的熵編碼、新型幀內預測、去除方塊效應的濾波器等。Distortion and gauss white noise distortion. the simulation of ideal system aims at absolutely clean channel, and the nonideal systems respectively set their channels as ricean channel ( multipath distortion channel ) and awgn ( gauss white noise distortion channel ). at the end of simulation, it use examining means of communication system as ber ( bit error rate ) analysis and eye diagrams analysis, then gives a summarize and a comment to the system
模擬中的系統結構、模塊和傳輸速率的選擇符合標準的dvb1規范en300744 ，理想系統的模擬是針對完全乾凈的通道，而非理想系統分別將通道設置為hcean通道哆徑干擾通道）和awgn （高斯白噪聲通道） ，模擬最後用通信系統的檢測手段進行誤碼率分析和眼圖分析，並對該系統作了總結和評價，加深對了dvb1系統的信號處理過程的理解，明確了目前面臨的問題。Considering the stability and continuity of face region, and the error propagation effect due to the high error rate in wireless channels, the intra - refresh method is used. the redundant data is not too much owing to the continuity, and the error propagation effect can be stopped accordingly
由於視頻中出現的人臉具有穩定性，連續性等特點，同時考慮到無線移動通道由於誤碼率高而引起差錯傳播問題，所以採用幀內編碼宏塊刷新的方法。In the fec part, rs ( reed - solomon ) code and interleave are chosen as the basic elements of the error correction system at first ; then the coding parameter and data structure are determined based on the results of matlab simulation ; at last, hdl modules are implemented in fpga using verilog hdl, test results and simulation diagrams are presented as well. in the designing process, the proper division of the modules and the cooperation between modules need a lot of consideration, and the top - down method is adopted to solve these questions
在前向糾錯的設計部分，文章首先根據系統的誤比特率要求選擇了rs （ reed - solomon ）碼和交織器作為前向糾錯部分的基本構架，再根據matlab的模擬結果得到了具體的編解碼參數和碼字結構，最後在fpga中用硬體描述語言veriloghdl實現了各個編解碼模塊，並給出了測試數據、實現結果及時序模擬波形圖。Each block of repeated code increases the chances of introducing an error into the logic
每一塊重復的代碼都使得程序邏輯中出現錯誤的幾率增加。分享友人