orthogonal detection 中文意思是什麼

orthogonal detection 解釋
正交檢波
  • orthogonal : adj. 1. 直角的，互相垂直的；正交的；直交的。2. （統計數字）互不相關的。
  • detection : n. 1. 探知；發現，發覺；敗露。2. 【化學】檢定，檢查；【電訊】檢波。
  1. ( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold

    通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術，避免了ook （開關鍵控）光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變，從而提高了系統性能和降低了系統的復雜度。
  2. Errors resulting from discrete sampling of zernike orthogonal ( space ) matrix is correct by error correction table. the edge detection precision is higher than 0. 1 pixels though signal to noise ratio up to 20db

    改進了zernike正交矩（空間矩）亞像素邊緣檢測演算法，用誤差修正表對離散采樣引起的誤差進行修正，使信噪比達到20db時，邊緣檢測精度仍然優於0 . 1像素。
  3. On the other hand, recent advances in communication and modulation methodologice, as well as in adaptive digital signal processing and error detection and correction, have opened the way for the development of effective medium access control and physical layer protocols that support power line communications ( plc ) networks operating at speeds comparable to those obtained from specially wired and more recent wireless local area network in mid - 2001, an industrial standards organization called the homeplug powerline alliance, originally founded by 13 companies including cisco, motorola, intel, panasonic, and texas instruments, announced the completion of the homeplugl. o specification for a l. 0mb / s class in - home power line networking technology based on orthogonal frequency - division multiplexing ( ofdm )

    但是，近年來通信和調制技術的發展，特別是自適應數字信號處理和錯誤檢測及糾正技術，使電力線通信技術出現新的mac層和物理層協議，其性能可以和一些專用有線網路以及最近十年流行的無線局域網技術想媲美。在2001年，一個由13個公司（包括cisco ， motorola ， intel ， panasonic ， andtexasinstruments ）組成的組成的標準組織? ? homeplugpowerline聯盟，頒布了完整的homeplug1 . 0規范，改規范使基於正交頻分復用技術，主要針對10mb s室內電力線網路技術。
  4. Furthermore, an algorithm of multi - scale edge detection based on bi - orthogonal symmetric wavelet was put forward, with which, " good edges " will be obtained while the edge positions will be kept well

    本文證明了，基於對稱小波基的小波變換，在用於多尺度邊緣檢測時，可以很好地保持邊緣位置；本文的工作提出了一種基於雙正交對稱小波的多尺度邊緣檢測演算法。
  5. A discrete orthogonal polynomial method is put forward for curve fitting sub - pixel edge detection algorithm, which decomposes two - dimensional curve fitting into one - dimensional curve fitting, and improves the reliability and computation speed of the algorithms

    引入離散正交多項式，提出了一種新的曲面擬合亞像素邊緣檢測演算法。該演算法將二維曲面擬合分解為一維曲線擬合，大大提高了演算法的可靠性和速度。
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