encoding matrix 中文意思是什麼
encoding matrix
解釋
編碼矩陣-
By whitening the covariance matrix of flat ambiguity, correlation between ambiguity components, the number of local extrema of cost function is reduced. the search program getting into precocity is avoided by suitable encoding and genetic operation
通過白化處理模糊度，減少模糊度搜索中指標函數的局部極值點，採用適當的編碼和遺傳操作使得在種群個體較少的情況下避免搜索陷入早熟。 -
Ldpc code belongs to the linear block code which is encoded by the information sequence multiplies generator matrix. although the parity - check matrix of ldpc code is sparse, the generator matrix is not. the encoding complexity of it is linearly proportional to the square of code length
Ldpc碼屬于線性分組碼，線性分組碼的通用編碼方法是由信息序列根據碼的生成矩陣來求相應的碼字序列，盡管ldpc碼的校驗矩陣是非常稀疏的，但它的生成矩陣卻並不稀疏，這使得其編碼復雜度往往與其碼長的平方成正比。 -
We propose several watermarking techniques after analyzing other watermarking methods detailedly. the main contributions can be summarized as following : ( 1 ) based on previous work, we proposed an improved spatial self - embedding watermarking technique. we save the quantized dct coefficients using group encoding while not using bit matrix which restricts saving bit length of each dct coefficient
本文的創新之處總結如下： （ 1 ）提出了一種改進的具有修復功能的空域自嵌入水印演算法，利用分組編碼保存量化后的dct系數，改善了修復效果，克服了以往使用位圖矩陣的不足，具有通用性與實用性。 -
The main content is position matrix is set to record the location of wavelet coefficients, scanning the important wavelet coefficients first by using ordered quad - tree, and encoding the sign by using run length coding as well
主要思想是：設立位置矩陣記錄子帶的位置信息，對高頻子帶內小波系數進行掃描排序形成有序四叉樹，對輸出的符號串採取行程編碼。 -
The analogy video real - time capturing, encoding, compressing and streaming transfer have been implemented at server end by utilizing windows media encoder sdk to program. the communication between client and server is built by programming with socket. accessing the server, the client can control the video - matrix - control remotely and distributively and real - time reappear the live video
圍繞系統的設計和實現，深入分析了視頻矩陣切換器，實現了視頻通信服務器與視頻矩陣切換器的互聯；運用windowsmediaencodersdk編程實現了服務器對模擬監控視頻的實時採集、壓縮編碼和流式傳輸；運用socket編程實現了客戶端和服務器端的通信，通過訪問服務器，客戶端實現了對視頻矩陣切換器的遠程分散式控制和現場監控視頻的實時再現。 -
Abstract : with the use of cyclic s - matrix, the cyclic encoding configuration of one - dimension & two - dimension encoding mask have been designed, which make the encoding measuring procedure of the instrument remarkably simplified
文摘:採用循環s -矩陣設計了一維和二維循環編碼構形，使儀器的編碼測量過程大為簡化。 -
This paper focuses on the following research work : 1. proposes a genetic algorithm based on matrix encoding for next hop route with load and time delay ; 2. proposes a genetic algorithm for shortest route via designated node, solves the problem which dijkastra algorithm need two times or more to compute ; 3. proposes a scheme of dividing populations and dividing time in order to improve the success ratio ; 4. proposes a network model for directional motion, performs evaluation for mobile ip based on wlan, and concludes some useful results
提出了解決移動ip中過指定點的路由的遺傳演算法，解決了dijkstra演算法需要分次計算的問題，通過記錄遺傳演算法的疊代結果還可以給出次優解路由； 3引入了分群和分周期的操作策略，對過指點最短路由的遺傳演算法進行了改進，模擬分析表明使用該遺傳演算法求解過指定點的路由獲得了比inagaki演算法更高的成功率； 4 -
Then discusses conventional encoding and efficient encoding using special sparse parity check matrix in encoding algorithm, and expatiates the principle of message passing and spa which has the best performance in decoding algorithm
在編碼演算法里詳細討論了傳統的編碼演算法以及使用特殊形式奇偶校驗矩陣的快速編碼演算法。在譯碼演算法里介紹了mp演算法集的基本原理和譯碼性能最好的和乘積譯碼演算法。 -
The encoding complexity of ldpc codes length n seems indeed to be of order n2, the dissertation study the coding scheme with linear time complexity. afterward, it introduces the coding schemes used in dvb - s2 and gets the parity check matrix by simulation
針對ldpc碼通用編碼演算法的復雜度與碼長的平方成正比的問題，重點研究了ldpc碼的快速編碼方法，總結出了使ldpc碼能夠達到線性編碼的途徑。 -
At the same time, a novel approach to construction of ldpc codes based on the permutation matrix was proposed which got a parity check matrix with the shortest girth is 6. these codes keep the advantage of linear encoding and become more flexible. simulations show that the performance of short length codes of this kind is as excellent as other ldpc codes
同時提出一種基於置換陣循環移位的構造方法，得到的校驗矩陣圍長至少為6 ，且保持編碼的線性復雜度，碼率靈活，模擬結果驗證了置換陣ldpc碼碼長較短時，在高斯通道下性能接近或超過現有其他構造方式的ldpc碼。 -
In chapter 3, we propose the methods for finding the generator matrix of a quasi - cyclic ldpc in “ systematic form ” from its parity - check matrix and its corresponding encoding schemes
在第三章，我們繼續介紹了準循環結構的ldpc碼生成矩陣的求解及其對應的編碼方案。 -
The fast dct algorithm not only can reduce the multiplication number, but also can combine the post - scaling and matrix transpose needed for fast dct with the quantization and scan processes, so as to speed up the whole mpeg encoder. in addition, the table - lookup fast quantization algorithm can further speed up the encoding process
本章提出的快速dct演算法不僅減少了所需乘法的次數，而且變換后的後置乘法和矩陣轉置過程可與量化和掃描相結合，進一步加速浙江大學博士學位論文整個mpeg編碼過程。 -
This thesis offers a comprehensive study on the performance of ldpc codes. the author first presents a new method for construction of irregular ldpc codes based on generator matrix in order to significantly reduce encoding complexity. the simulation results are obtained over an awgn channel, and the obtained results are also compared with those acquired by the traditional approaches
本文在對ldpc碼進行了系統的分析和研究的基礎上，為了降低編碼復雜度，我們首次提出了一種基於生成矩陣的非正規ldpc碼的構造方法，並將其性能和傳統的基於校驗矩陣的ldpc碼進行了比較。
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