譯碼演算法 的英文怎麼說
中文拼音 [yìmǎyǎnsuànfǎ]
譯碼演算法
英文
decoding algorithm- 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...
- 演 : 動詞1 (演變; 演化) develop; evolve 2 (發揮) deduce; elaborate 3 (依照程式練習或計算) drill;...
- 算 : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
- 法 : Ⅰ名詞1 (由國家制定或認可的行為規則的總稱) law 2 (方法; 方式) way; method; mode; means 3 (標...
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A sub - optimum decoding algorithm for system concatenated with turbo - tcm and space time block codes
與時空分組碼的級聯系統的次優譯碼演算法An improved sova - based decoding scheme for turbo - stcm
的并行級聯空時格碼的譯碼演算法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。There are two decoding schemes for convolution code, such as sequence decoding algorithm and viterbi algorithm. because of simplicity 、 excellent performance, viterbi decoding algorithm is abroad applied
卷積碼的譯碼演算法有序列譯碼和viterbi譯碼兩大類, viterbi譯碼演算法由於其簡單、性能優異等特性得以廣泛應用。The viterbi decoding algorithm, proposed in 1967 by viterbi, and it ’ s proved that viterbi decoding algorithm is the maximum likelihood decoder algorithm of convolution code and it has excellent decode performance
Viterbi譯碼演算法在1967年由viterbi提出,經證明它是卷積碼譯碼得最大似然譯碼演算法,具有優異的譯碼性能。Viterbi algorithm is a kind of maximum likelihood decoding method, which can obtain high decoding speed and cost fixed decoding time, so it is widely used in deep space communication
維特比譯碼演算法是一種最大似然譯碼,它可以得到較高的譯碼速度以及譯碼計算時間固定,因而在深空通信中得到廣泛應用。5. according to the euclidean algorithm rs encoder and decoder are implemented in fpga
根據euclid迭代譯碼演算法,用fpga設計實現了rs碼編譯碼器。Cascaded low - density erasure codes are based on sparse random bipartite graphs. very efficient linear time encoding and erasure recover algorithms with the arbitrarily near erasure channel capacity performance of the codes with respect to the algorithms have made them one of the most optimal coding techniques up to now
基於稀疏隨機二部圖的級聯型低密度糾刪碼因其線性時間的編譯碼演算法和可任意逼近刪除通道容量限而成為目前最佳編碼技術之一。2. aiming at the convolutional code with long encoding restriction we adopt the fano sequential decoding algorithm to implement the decoder
2 、針對編碼約束度比較大的卷積碼,採用fano序列譯碼演算法來實現譯碼。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。There are many decoding schemes for convolutional code, such as sequence decoding algorithm, fano algorithm, viterbi algorithm. but in fact, what ' s used widely is viterbi decoding algorithm. the viterbi decoding algorithm, proposed in 1967 by viterbi, is a decoding process for convolutional codes in memory - less channel, which takes full advantage of convolutional codes. since viterbi algorithm is proposed, it has obtained rapid development whether in theoretics or in practice and been applied to all kinds of data transmission systems, especially to digital wireless communications and deep space communications
卷積碼的譯碼演算法方案有很多,如序列譯碼演算法、 fano演算法、 viterbi演算法,但是真正大規模應用的還是viterbi演算法。 viterbi譯碼演算法是1967年viterbi提出的,它是一種對無記憶通道卷積碼進行譯碼的演算法。它充分發揮了卷積碼的特點,因而自viterbi演算法提出以來,無論在理論上還是在實踐上都得到了極其迅速的發展,並廣泛的應用於各種數據傳輸系統,特別是無線通信和衛星通信系統中。An improved viterbi algorithm of dsp generat ion is brought up to, and a new coding gain testing system is designed. the system tests the coding gain of the error - control system, and the coding gain is 9. 4db which exceeds the proposed index. at last, some suggestions are presented for the work in the future
在對維特比譯碼演算法研究的基礎上,提出了維特比譯碼演算法基於dsp的改進方法,並且設計出一種新的編碼增益測試系統,對卷積編碼和維特比譯碼組成的差錯控制系統的編碼增益進行了測量,測試結果為9 . 4db ,優于設計指標,最後提出了一些對將來工作的建議。An engineer case is introduced, which is " the identification of coke oven sequence number and distant transmission of pushing coke information ". advanced technology of wireless data transmission and computer control is adopted to improve pushing coke motor. the data transmitter - receiver is introduced in the engineer case, and the improved step - by - step decoding algorithm is put into practice
在此系統中對推焦車採用較為先進的無線遠傳技術和計算機控制技術進行改造,選用深圳「友迅達」的數傳電臺fc - 201 e開發了「推焦過程信息遠程傳輸系統」 ,並將本文提出的這種改進的step - by - step譯碼演算法應用其中,實現推焦車上的推焦過程監測儀和上位機以及其他現場執行機構的可靠、有效的通訊。Simulation of a complex sphere decoding algorithm
一種復數球形譯碼演算法的模擬Sphere decoding algorithm for joint decoding in cdma system
系統聯合檢測的球譯碼演算法Hybrid bit - flip decoding algorithm for ldpc codes
低密度校驗碼的混合比特反轉譯碼演算法Evaluate the bit - error bound of serially concatenated codes ( scc ), and present the design guidelines and iterative decoding algorithms of scc
推導了串列級連碼的誤比特率限,介紹了串列級連碼的設計準則以及軟判決譯碼演算法。On the realization of this new scheme, the influence of the fixed - point quantification upon the modified max - log - map algorithm is evaluated. simulations show that : if the input data is 5 bits at length, the unfavorable effect of quantification error is negligible
在系統實現方面,分析了輸入數據的定點量化對改進的max - log - map譯碼演算法的影響,結果表明輸入數據採用5比特量化時,量化誤差對譯碼結果的影響已很小。Many of communication systems take the convolutional code and viterbi algorithm as the channel coding scheme. the viterbi algorithm decoding is a kind of maximum likelihood decoding, and its performance is good over additive white gaussian noise ( awgn ) channel, but when burst errors occur, the decoding performance may be greatly degraded
維特比譯碼演算法是最大似然譯碼,在由高斯白噪聲引起的隨機錯誤的通道中有良好的性能,但當通道錯誤集中或為突發錯誤通道時,維特比譯碼演算法則性能急劇下降。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。分享友人