addition of vectors 中文意思是什麼
addition of vectors
解釋
向量加法-
This construction is often called the parallelogram law of addition of vectors.
這種作圖法常被稱為矢量相加的平行四邊形法則。 -
An algorithm for detecting moving ir point target in complex background is proposed, which is based on the reverse phase feature of neighborhood ( rpfn ) of target in difference between neighbor frame images that two positions of the target in the difference image are near and the gray values of them are close to in absolute value but with inverse sign. firstly, pairs of points with rpfn are detected in the difference image between neighbor frame images, with which a virtual vector graph is made, and then the moving point target can be detected by the vectors ' sequence cumulated in vector graphs. in addition, a theorem for the convergence of detection of target contrail by this algorithm is given and proved so as to afford a solid guarantee for practical applications of the algorithm proposed in this paper. finally, some simulation results with 1000 frames from 10 typical images in complex background show that moving point targets with snr not lower than 1. 5 can be detected effectively
基於運動點目標在鄰幀差分圖像中所具有的近鄰反相特徵，即運動點目標的兩個位置相鄰近、灰度值一正一負，提出一種在復雜背景下，基於紅外序列圖像的運動點目標檢測演算法.本演算法利用該特徵在鄰幀差分圖像中檢測反相點對，進而構造反相點對矢量圖，最後依據累積反相點對矢量圖中多矢量首位相接的連續性檢測出運動的點目標.文中給出並證明應用本演算法能以概率1檢測到運動點目標的收斂性定理.對典型復雜背景下10幅1000幀圖像的模擬結果表明，當信噪比大於或等於1 . 5時，可以有效檢測出運動點目標 -
As a result, the concept of state space for conceptual design of mechanical system is presented, which is new to the literature, based on the set of all state vectors. meanwhile, the properties of state vectors, which are vectors addition, constant multiplying, reversible driving, zero vectors, are discussed in state space. secondly, the dual - vector is introduced to descript the essential relation among the input and output characteristic vectors as well as sms
按照狀態空間中對偶特徵矢量的運算規則，在已知系統的輸入輸出特徵矢量的情況下，通過數學推導求解，將形成的系統狀態變換矩陣分解為多個狀態變換矩陣的乘積，再通過各狀態變換矩陣到數據庫中尋找相應的基本變換單元集合，然後進行按序組合，進而從理論上獲得相應的方案設計可行解。 -
In the part of the hardware, how to select chips is introduced, including dsp and other chips, such as power supply 、 sdram 、 flash and jtag which is a emulator interface ; in addition, the clock 、 assignment to memory and the table of vectors are set
其中在硬體部分，介紹了晶元的選擇方法，包括dsp晶元和其它晶元，如電源晶元、異步動態存儲器、閃存和jtag模擬介面;還對硬體平臺的時鐘、內存分配和中斷向量表進行了設置。 -
In addition, molecular experiments indicated that resistance was not relevant to copy number or to insertion sites, but instead to the repeated gfp structure and to methylation of genomic dna. pvx vectors were constructed that contained the s6 gene of rbsdv vi and the 14 kd fragment of bnyvv rna2
分子檢測結果顯示， gfp3植株中普遍存在gfp基因的沉默現象，且gfpdna的甲基化程度明顯高於gfp1植株，說明這些植株對于病毒的抗性與目的基因的插入位點及拷貝數和無關，但與串聯重復的gfp基因結構形式密切相關。
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