模擬譯碼 的英文怎麼說
中文拼音 [mónǐyìmǎ]
模擬譯碼
英文
analog decoding- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 擬 : 動詞1. (設計; 起草) draw up; draft 2. (打算; 想要) intend; plan 3. (模仿) imitate
- 譯 : 動詞(翻譯) translate; interpret
- 碼 : Ⅰ名詞(表示數目的符號或用具) a sign or object indicating number; code Ⅱ量詞1 (指一件事或一類的...
- 模擬 : imitate; simulate; analog; analogy; imitation; simulation模擬艙 boilerplate; 模擬電路 [電學] circ...
-
The columns and rows are constrained by each other. the simulations over binary symmetric channe ( lbsc ) and gilbert - elliott channel ( gec ) shows the performance is great improved, especially over burst error channel peak signal to noise ratio ( psnr ) is improved more. it is tried to be used in wireless communication system
模擬結果表明,採用行列交替約束的約束維特比譯碼以後,性能得到較大的提升,尤其在突發錯誤通道中,傳輸的圖像經乘積編碼進行通道編碼與譯碼后峰值信噪比有明顯的提高。The thesis mainly focuses on the encoding and decoding to the systemic convolutional code with programming language, which is prescribed in the intelsat iess 309 standard
本文主要針對intelsatiess309協議標準中所採用的系統卷積碼,模擬並編程實現其編碼和譯碼。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。A new h - arq scheme that uses progressively decodable serially concatenated codes for retransmission is proposed with its design guidelines. theoretical bounds on total number of transmitted bits and throughput performance are derived. finally, the simulation results are given
提出了基於累進可譯串列級連碼的h - arq體制,論述了其設計原則,推導了重傳比特數和通過率的理論限,給出了性能模擬結果。In the project of constructing the platform, the design of the time - domian synchronization algorithm is in the charge of me, which has been realized on fpga. it is introduced detailedly in chapter 3 and chapter 4. additionally, the design of ldpc decoder based on fpga is another part of the project
介於本人在該項目中的主要工作是時域同步演算法設計及fpga實現和ldpc碼譯碼器的fpga設計,在文章的第三章將系統的介紹測試平臺時域同步的演算法設計過程及matlab模擬分析,第四章將介紹時域同步的fpga設計、模擬及硬體調試。We discuss the bit error rate of the convolutional code, turbo code encoder and decoder theory as well as the performance in awgn channel and rician channel, and present the result of simulation
討論了rs與卷積碼級聯的誤碼率問題, turbo碼的編譯碼原理及其在awgn通道和rician通道中的性能,並給出了相應的模擬結果。The iess 309 standard indicates two decoding methods, we focus on the systemic convolutional code with long encoding restriction which is 36 bit and adopt the fano sequential decoding algorithm to implement the decoder
在協議中規定了兩種譯碼的方式,我們主要是針對編碼約束度為36的系統卷積碼,採用fano序列譯碼演算法來實現其譯碼,並進行了模擬。Simulation of a complex sphere decoding algorithm
一種復數球形譯碼演算法的模擬System emulation and performance analysis of turbo codes with sova decoders
譯碼器的系統模擬及性能分析Finally yet importantly, sctcm is researched which combines sccc with high bandwidth efficiency modular method tcm. besides, the corresponding schemes of encoding and modulating of sctcm, the corresponding demodulating and decoding algorithm, and the performance simulation are also presented
最後討論了sccc與高頻帶利用率調制方式結合的sctcm ,研究了適用於sctcm系統的編碼調制方案和解調譯碼演算法,並給出了性能模擬。The decoder is compiled and simulated in ep1c12q240c by quartusii - 5. 0. the different error style is added to the sequence received in emulated channel. correspondingly, the correct decoding results are attained at the output terminal
在quartusii - 5 . 0模擬環境下以cyclone系列的ep1c12q240c為目標晶元對譯碼器進行了編譯和模擬,在接收序列中加入不同的錯誤類型,相應的在譯碼器輸出端得出了譯碼后的正確譯碼結果,驗證了設計方案的正確性。It is in dire solved need of opening up nc machining simulating system in manufacturing that there are maturity function and better real time. aiming at the simulating system study of 5 - axis numerical control milling of sajo12000p, the paper introduces the function modules of simulation system of nc machining., including interface module data processing data chain module timely controlling and roming module, and by this way we accomplished the basic function of numerical control machining
因此開發功能完備、實用性強的數控加工過程模擬模擬系統成為當前製造業急需解決的一個問題本文以數控技術實驗室的saj012000p五坐標加工中心為模擬對象,針對其開發一套數控模擬軟體,本人承擔了整個模擬系統的cnc控制軟體的開發工作,針對cnc系統軟體的人機交互界面的建立、 nc代碼的編譯、編譯指令的數據處理、插補、進程問數據鏈的傳輸加載、機床模擬運動按照nc指令的適時控制等功能子模塊進行了開發研究。We put the emphases on the soft output viterbi algorithm ( sova ), which is one of turbo code ’ s decoding algorithms, and presents the derivation and computation step of the sova decoding algorithm. after presenting sova and map decoding algorithms and analyzing four kinds of decoding algorithms, the paper makes a comparison among the different decoding algorithms by emulation analysis, and analyzes the time complexity of various algorithms, and then contrasts them. in the last part of this paper, according to the criterion recommended by the consultative committee for space data systems ( ccsds ), including code rate,
根據空間數據系統顧問委員會( ccsds )為turbo碼應用於深空通信系統推薦的標準,包括碼率、碼塊大小、分量碼類型、約束長度、碼生成多項式,以及交織器的選擇等參數的建議以及sova譯碼演算法的理論基礎,設計了sova演算法的實現結構,通過模擬驗證了本文所採用的turbo碼的性能,從而證明turbo碼確實是一種很好的通道糾錯編碼方式,它適用於要求功耗低或信噪比低的深空通信系統中。This system presents us various kinds of user interfaces ( such as thin - client ui ), further more, to facilitate further research and provide a scientific foundation to ensure flight safety and daily monitor, other extended interfaces ( including network interface, data analysis interface, decode interface and etc ), are also provided by the system
該系統由數據採集、譯碼、實時數據處理、實時監控模擬再現等模塊組成,系統還提供用戶介面、網路介面,數據分析介面,譯碼擴展介面等。該系統可以應用於航空公司機務維修等部門,結合地空數據鏈系統,為保障飛機飛行安全以及日常監控提供科學的依據,同時也為飛機油耗優化、技術評估等提供數據支持。The design and application of ad6640 and ad6624 are fully discussed in this part. the design of software module includes the parameter design for ddc filter and the baseband signal processing of dsp. and the realization of the viterbi channel decoding algorithm by dsp and the simulation of the burst at the transmitter are discussed
模塊的硬體設計主要包括: a d轉換器、數字下變頻器( ddc )以及dsp ,詳盡討論了a d器件ad6640和ddc器件ad6624的設計和應用;模塊的軟體設計主要包括: ddc濾波器參數設計和dsp的基帶信號處理,給出了viterbi通道譯碼演算法dsp實現和發射端突發形成的模擬實現。To verify their effectiveness, simulation studies are conducted to test the performance of the proposed turbo codes in awgn channels and flat fading channels. in these simulations, the modified max - log - map decoding algorithm and the golden - spread interleaver are applied
模擬研究了採用優選擴散交織與改進的max - log - map譯碼演算法的turbo碼在加性白高斯噪聲( awgn )通道以及平衰落通道上的性能。Chapter five discusses de - mapping and soft information extraction in dvb - t receiver and gives the performance comparison of soft decision decoding and hard decision decoding
第五章首先介紹軟判決的基本原理,然後分析軟信息提取及解映射的過程,最後給出了軟判決譯碼和硬判決譯碼的性能模擬結果。Thesis introduces the architecture of the grid simulator, the mechanism and process of the modeling simulation and the realization method of every module in details. it includes the modules of user and resource, resource scheduling police, grid environment, java code generation, code compilation and execution and result analyses
文中詳細介紹了pactsim網格模擬器的體系結構,建模模擬機制和模擬過程以及各個模塊的實現方法,主要包括用戶及資源模擬,資源調度策略模擬,網路環境模擬, java代碼的生成,編譯及運行,模擬結果的分析等模塊。The paper puts forward a kind of economical numerical control milling machine system which is supported by windows and industry pc that are acted as software and hardware platform on the base of analyzing the present development of economical numerical control system and some existent problem, and expatiates the system software ' s collectivity frame, also introduces detailedly form and operational way of the user ' s interface. besides, the thesis also frames and accomplishes each module such as syntax inspect module, translation module, tool compensation module and track interpolation module adopting visual c + + 6. 0 and the kind of facing object and modularized program design method by analyzing rationales and function of the software ' s modules, moreover presents the programmer ' s flow chart and parts of source code, whereafter validates arithmetic of translation and tool compensation by simulating process testing program
本文在分析了我國經濟型數控系統的發展現狀以及目前存在的一些問題的基礎上,提出了一種以windows和工業pc機作為軟、硬體平臺的經濟型數控銑床系統,闡述了該系統軟體的總體結構,並對其用戶界面的組成及其操作過程做了較為詳細的介紹,分析了軟體的各個模塊的基本原理和功能,採用visualc + + 6 . 0以及面向對象、模塊化的程序設計方法,完成了語法檢查模塊、譯碼模塊、刀具補償模塊以及軌跡插補模塊的具體設計,並給出了程序設計流程圖和部分源代碼,通過系統的模擬程序模擬加工過程驗證了譯碼和刀補演算法的正確性。D a decoder
數字模擬譯碼器分享友人