準循環碼 的英文怎麼說

中文拼音 [zhǔnxúnhuánmǎ]
準循環碼 英文
quasi-cyclic codes
  • 準 : Ⅰ名詞1 （標準） standard; guideline; criterion; norm 2 （目標） aim; target Ⅱ動詞1 （依據; 依照）...
  • 循 : 循動詞（遵守; 依照; 沿襲） follow; abide by
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 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...
  • 循環 : circulate; circle; round; repeat; loop; period; recurrence; cycling; circulating; mixing; circula...
  1. At first we improve the methods of iris image preprocessing, including an efficient arithmetic of evaluation iris images, an improving method of locating iris, calibrating iris image by the translation of coordinate and the circular shift of code, a eatimate of the background illumination by bicubic spline, and the image enhancement by the dual tree complex wavelet transform. next we designed the recognition arithmetic based on the location of the local maxima of the wavelet transform modulus. in the thesis lots of simulation are performed by means of matlab and visual c + +

    首先改進了虹膜預處理方法，實現了一種快速高效的虹膜質量評價演算法;設計了一種改進的兩步虹膜定位演算法，準確的定位了虹膜的內外邊界;利用坐標轉換和編碼的循環移位實現了對虹膜圖像的配準;利用雙三次樣條函數擬合虹膜圖像背景，去除了非均勻光照對虹膜識別的影響;使用二分樹復數小波方法增強了虹膜圖像的對比度;在識別演算法方面，本文設計了一種「基於小波模極值點位置的虹膜識別演算法」 。
  2. Secondly, the encoder circuit of quasi - cyclic which can realize low encoding complexity are designed and implemented. three encoder circuit are designed respectively with feed shift - registers and logic gates : sraa - based serial qc - ldpc encoder ; sraa - based parallel qc - ldpc encoder ; two - stage qc - ldpc encoder

    採用反饋移位寄存器與邏輯門設計了三個典型的編碼器電路:基於sraa電路的串列準循環ldpc碼編碼器;基於sraa電路的并行準循環ldpc碼編碼器;二階編碼電路。
  3. At this point, you re not ready to actually test this out with an unmarshal - marshal cycle although you will do that later ; instead, just examine the source and check for potential problems

    在目前，您還沒有準備好通過解組-編組循環測試輸出的結果（盡管以後要這樣做） ，首先來分析源代碼中可能存在的潛在問題。
  4. The major contributions of the dissertation are as follows : 1. it is well known that the multi - value cdma spreading codes can be designed by means of a pair of mirror multi - rate filter - banks based on some optimizing criteria. the dissertation indicates that there exists a theoretical bound in the performance of its circular correlation property, which can be described by an explicit expression. based on this analysis, a criterion of maximizing entropy is proposed to design such codes

    研究了基於兩帶鏡像多速率濾波器組來設計的多值cdma擴展碼的方法，並推導出了基於這種方法設計的碼序列在循環相關特性方面所能達到的極限，以及達到此理論極限時應滿足的條件；在此基礎上，提出了一種基於熵最大化準則來產生cdma擴展碼的設計方法。
  5. Because the begin block is evaluated before awk starts processing the input file, it s an excellent place to initialize the fs field separator variable, print a heading, or initialize other global variables that you ll reference later in the program

    Awk還有" do . while "循環，它在代碼塊結尾處對條件求值，而不象標準while循環那樣在開始處求值。它類似於其它語言中的" repeat . until "循環。
  6. The paper makes great efforts on the software optimization of evrc vocoder. based on the understanding of tms320c64xx cpu structure, we do deeply - optimization on the loop which appear usually in voice signal processing, and this improve the utility ratio of cpu and the parallelity degree of cpu function cell. at the same time, we utilize the bit - exact test to test the fixed - point evrc vocoder with the test vectors of tia / eia / is - 718, which improve the robustness of the vocoder

    本文圍繞定點evrc聲碼器的軟體優化，做了大量的工作，在充分理解tms320c64xxcpu結構的基礎上，針對語音信號處理中大量出現的循環運算進行了深度優化，大大提高了cpu的利用率以及cpu功能單元的并行程度，同時，我們還用tia / eia / is - 718的測試向量對定點evrc聲碼器進行了嚴格比特對準測試，提高了聲碼器的魯棒性。
  7. 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。
  8. The design principle is introduced and a solution, called cs code, is obtained by the use of two operations to the conventional orthogonal code set ; an operation of cyclic repetition and an operation of angle rotation

    文章介紹了這種碼的設計準則，並給出了一個具體的實例，稱為梳狀頻譜cs碼。 cs碼利用傳統的正交碼通過2步操作得到： 1循環重復操作2角度旋轉操作。
  9. According to the structure of quasi - cyclic ldpc code, we can make a trade - off between hardware complexity and decoding throughput by applying semi - parallel architecture

    摘要利用準循環ldpc碼的結構特點，使用半并行結構的譯碼器可以實現復雜度和譯碼速率的有效折中。
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