code decoding 中文意思是什麼
code decoding
解釋
譯碼, 電碼譯出, 電碼翻譯-
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。 -
Giving the goal and conceptual design, this paper pays attention to expatiate how to practically use the techniques of image - processing, communication and recognition in remote image monitoring system, and discusses how to realize the key techiques such as terminal connection and frame design, platform decoding control and alarm, image communication and track, etc. in order to overcome most existing image monitoring systems " shortages - those systems are at low intelligent level, need overfull manual work and ca n ' t work all day, this paper has adopted the advanced image code / decode technology and digital image transmission technology, and has applied the intelligent image processing and recognition technique to the display, adjust and track of images
本論文在設計圖像監控系統的建設目標和總體方案的同時，重點闡述了圖像處理、通信與識別技術在遠程圖像監控系統中的應用實現，給出了圖像監控系統中的終端接入和框架設計、雲臺解碼控制與報警、圖像通信和圖像跟蹤等關鍵技術的實現。針對現有的圖像監控系統大部分採用人工為主，機器為輔，智能化程度低，不能全天候工作的現狀，本文採用先進的數字圖像壓縮編解碼技術、數字圖像傳輸技術，將智能圖像處理與識別技術應用於圖像的顯示、調整、跟蹤，克服了一般監控系統要求監控人員過多地干預、智能化程度低的缺陷，並總結了其特點和優勢。 -
This product usesthe fm radio set code decoding system, has the ultra strongantijamming ability and the extremely low power loss, the reactionrate is keen, the highest synchronous speed amounts to for 1 1, 000second, can satisfy photographic camera of each kind of type shuttersynchronized flash photography request
該產品採用調頻無線電編碼解碼系統，有超強的抗干擾能力和極低的功耗，反應速度靈敏，最高同步速度達1 1000秒，能滿足各種類型快門之照相機的同步閃光拍攝要求。 -
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。 -
As a result, pseudorandom code acquisition and tracking, carrier recovering, error correction and decoding functions are needed in the if digital receiver
因此，其中頻數字接收機需要完成偽隨機碼捕獲跟蹤、載波恢復、糾錯譯碼等功能。 -
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。 -
Based on the ( 3, 1, 5 ) convolution code in digital trunking system, this paper first studied the decoding depth of the convolution code and fund out the right decoding depth for digital trunking system, then proposed a modified viterbi decoding algorithm
本文以數字集群中所用的（ 3 ， 1 ， 5 ）卷積碼為基礎，首先對卷積碼的解碼深度進行了研究，得出適合數字集群系統的解碼深度，然後提出了一種卷積碼的viterbi譯碼的改進演算法。 -
The main research work of this thesis is focused on the encoding and decoding technologies in the optical code divison multiplexing access system
本文主要針對一維和二維光碼分多址系統中的編解碼技術方案進行研究。 -
In this paper, we study the stopping sets, stopping distance and stopping redundancy for binary linear codes. stopping redundancy is a new concept proposed by schwartz and vardy recently for evaluating the performance of a linear code under iterative decoding over a binary erasure channel. since the exact value of stopping redundancy is difficult to obtain in general, good lower and upper bounds are important
近年來，迭代譯碼的性能分析是低密度校驗ldpc碼研究領域的熱點問題之一， di等人在2001年指出：迭代譯碼在二元刪除通道bec中的性能可以由ldpc碼的停止集stopping set完全刻畫。 -
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。 -
This method establishes the correlation template between one color component and the other two color components by using color correlation between three color components in each feature regions of a color head image. and it " s only necessary to quantize and code the first color component. during decoding, this color component is reconstructed
該方法利用彩色人頭圖象在各個特徵區域三個色彩分量之間的色彩相關性，建立其中一個色彩分量與另兩個色彩分量之間的相關模板，並只需對第一個色彩分量進行量化編碼，解碼時重構這個色彩分量后，加上極少量的相關模板系數就可解出另兩個色彩分量，從而恢復圖象。 -
Iterative decoding of space frequency block code ofdm systems
系統迭代解碼演算法 -
There are several aspects of work that was done in this thesis mainly. firstly, the theory of the under - water long - range remote control system was analyzed and the remote control instruction code was designed. secondly, decoding circuit of the under - water long - range remote control system was designed with fpga, including vhdl coding, simulation, synthesis, place & route, etc. besides, power consumption to fpga that is designed is estimated in this thesis. lastly, we designed and made one pcb to verify and test fpga decoding chip that is designed, and debugged and tested it finally
首先，深入研究和分析了在頻域實現水下遠程遙控解碼的原理並進行了遙控指令編碼設計；其次，用altera公司的cyclone系列fpga晶元完成了水下遠程遙控fpga解碼晶元的設計工作，包括硬體描述語言（ vhdl ）編碼、電路前後模擬、綜合和布局布線工作，並對設計的fpga解碼晶元進行了初步的功耗估算；最後設計製作了一塊fpga解碼晶元電路驗證測試板，並完成了電路調試和測試。 -
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。 -
Tree code decoding
樹碼譯碼 -
The iterative decoding of ldpc code must use the noise variance, so the variance estimation is important for the ldpc code decoding. by the computer simulation, we find that the impact of the estimation algorithm for the ldpc code performance is less than 0. 2db
通過計算機驗證得到，利用這種演算法估計出的誤差對碼字的性能不會有大的影響，在最差的情況下對spa譯碼演算法和改進的wbf演算法的影響都不會超過0 . 2db 。 -
Chapter three shows the software flow process of turbo decoding ( mainly constituent code decoding ) algorithms
第三章介紹了turbo譯碼（主要是成員碼譯碼）演算法的軟體實現流程。
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