星演算法 的英文怎麼說

中文拼音 [xīngyǎnsuànfǎ]
星演算法 英文
star algorithm
  • 星 : 名詞1 （夜晚天空中閃爍發光的天體） star 2 [天文學] （宇宙間能發射光或反射光的天體） heavenly body...
  • 演 : 動詞1 （演變; 演化） develop; evolve 2 （發揮） deduce; elaborate 3 （依照程式練習或計算） drill;...
  • 算 : Ⅰ動詞1 （計算數目） calculate; reckon; compute; figure 2 （計算進去） include; count 3 （謀劃;計...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. Dynamic model of satellite is built up with astronomic method, and a short - arch forecast arithmetic of satellite orbit in short arch with single site is given, which is of high precision when only angle data is available

    本文使用了天文方法建立了人造衛星運動的數學模型，給出了一種只使用單站短弧段測角數據對人造衛星軌道進行高精度預測的演算法。
  2. This paper mainly aims at the characteristics of the hardware and software structure of the parallel computer on satellite, and has fulfilled researches of fault tolerant technique in three aspects of control theories and engineering : the first research of the system level fault - tolerant module is based on the system structure of the parallel computer on satellite, a kind of cold backup module and a kind of hot backup module for multiprocessor computer have been put forward. then the research of software fault tolerant technique which is based on the operate system named rtems has been carried, the mission level fault - tolerate arithmetic and the system level fault - tolerate mechanism and strategies based on the check point technique have been put forward, at the same time the self - repair technique of software which has used the technique of system re - inject has been studied. finally the technique of components level fault - tolerant based on fpga has been studied, a kind of two level fault - tolerant project which aims at the fault - tolerant module of the parallel computer on satellite has been put forward, and the augmentative of circuit that project design realization need is little, this project can avoid any breakdown of any part logic circuit of the fpga

    本課題主要針對星載并行計算機體系結構及軟體結構的特點，從如下三個方面進行了容錯控制理論研究和實踐工作:首先進行了基於星載多cpu并行計算機體系結構的系統級容錯模型研究，提出了一種多cpu冷備份容錯模型和一種多cpu熱備份容錯模型;然後進行了基於rtems操作系統的軟體容錯技術研究，提出了任務級容錯調度演算法以及基於檢查點技術的系統級容錯恢復機制和策略，同時研究了利用系統重注入進行軟體在線自修復的容錯技術;最後研究了基於fpga的部件級容錯技術，提出了對容錯模塊這一星載并行計算機關鍵部件的兩級容錯方案，實現該方案所需增加的電路少，可避免板級晶元以及fpga晶元內部任何邏輯發生單點故障。
  3. A comparative analysis of adaptive beamforming algorithms for satellite multiple - beam antennas

    應用於衛星多波束天線的自適應波束形成演算法比較
  4. Research on realization of filtering method in integrated navigation based on bei - dou double star positioning system

    基於北斗雙星定位系統的組合導航濾波演算法實現研究
  5. Among them the gray level co - occurrence matrix ( glcm ) and gray gradient co - occurrence matrix ( ggcm ) methods, which attributed to the statistic textural analysis scheme were then chosen to extract the textural features of five kind areas on satellite images. in the second part the principle of classification and bp neural network were introduced. combined with textural features, the improved bp neural network successfully performed on the classification of the satellite images

    論文的第一部分介紹了進行紋理特徵研究的一些典型的方法，利用其中的基於統計的紋理分析法中的灰度共生矩陣以及灰度一梯度共生矩陣法，分析了衛星雲圖上五類區域的紋理特性；第二部分主要介紹了遙感圖像分類原理以及神經網路中的bp演算法，在對演算法原理進行深入理解的基礎上，把紋理特徵與神經網路進行組合，實現對衛星雲圖進行分類分析；第三部分內容是在前面圖像分類結果的基礎上，對序列圖像用相關匹配法進行運動分析，反演雲跡風風場。
  6. The asteroids are the most important small bodies in the solarsystem, and they mainly lies in the two locations - a main belt between the mars ' s orbit and the jupiter ' s and the near - earth space. the most feature of the orbits of near - earth asteroids ( neas ) is that the semi - major axes of the orbits are nearly equal to that of the earth or the perihelia distances are approximate to or even less than the mean distance between the sun and the earth, thus they could move into inside of the earth ' s orbit, so that they might close approach or even colliside with the earth ( or other planets, such as the venus, the mars, etc. ). the characteristic brings about some difficulties in the numerical research during their orbital evolution, which leads to the failure of the normalization technique in the general removal impact singularities of celestial mechanics methods and the symplectic algorithm which is successfully applied to the investigation in quality. by comparing the computation effects of several common numerical methods ( including symplectic algorithm ), and considering the nature of the movement of the small bodies, the corresponding treatments are provided here to improve the reliability of the computation

    小行星是太陽系最重要的一類小天體，主要分佈在兩個區域；火星和木星軌道之間的一條主帶和近地空間.近地小行星軌道的最大特點是其軌道半長徑與地球軌道半長徑相近，或近日距離接近甚至小於日地平均距離，其運動可深入到地球軌道的內部，這將導致該類小行星與地球（還有金星、火星等）十分靠近甚至發生碰撞.這一特徵給其軌道演化數值研究帶來一些困難，包括天體力學方法中一般消除碰撞奇點的正規化處理以及對定性研究十分成功的辛演算法都將在不同程度上失效.通過對幾種常用數值方法（包括辛演算法）計算效果的比較，根據小天體運動自身的特性，給出了相應處理措施，從而可提高計算結果的可靠性
  7. 3. the algorithms for generating spaceborne sar raw signals are explored

    3 .討論了星載sar回波信號生成演算法。
  8. Based on some traditional algorithms, this thesis provides a weighted star cluster algorithm to learn user profile

    對已有演算法進行改進，提出了一種加權的星型聚類演算法以學習用戶的興趣特徵。
  9. Thirdly, an ideal satellite orbit is simulated, and on this foundation, we establish some typical simulation and testing circumstances. lastly, after simulation in the simulation and testing circumstances, we compare the performance of ukf and ekf. and then, based on the outdoor experiment of the vehicle, an analysis and contrast between our simulation results and commercial data process software is carried out, and the conclusion is obtained

    首先在第三章提出的目標運動模型的基礎上建立了系統狀態方程;其次簡要分析了衛星導航系統中的各類誤差，建立了基於偽距觀測量的系統觀測模型;第四節利用yuma格式歷書數據模擬了未受攝動影響的衛星軌道，並在此基礎上建立了幾種典型的動態模擬測試環境;第五節為模擬分析和比較，先對ukf演算法和ekf演算法在動態模擬測試環境中進行了模擬比較，然後針對外場試驗，對非線性濾波獲得的定位結果與商業軟體進行了分析比較，並得出結論。
  10. When high - bandwidth star sensor measurements are available, according to the singer tracking model, the full angular acceleration is modeled as a first order markov process while the use of the attitude dynamics is totally avoided

    在能夠獲得高頻星敏感器測量的情況下，針對模型不確定問題，提出了一種基於singer模型的新的濾波演算法，把角加速度建模為一階馬爾科夫過程，從而避免了使用姿態動力學模型。
  11. Center locating of non - eye typhoon based on satellite cloud image

    基於衛星雲圖的無眼臺風中心定位演算法
  12. Based on the theory of retrieving lst through satellite remote - sensing and the characters of semi - tropical climate, topography, vegetation and the noaa / avhrr data in guangxi, the split - window algorithms for retrieving the lst from space, including the kerr algorithm, the becker & li algorithm, the qin algorithm, the franca & cracknell algorithm and some others, were analyzed and compared

    根據利用衛星遙感資料反演lst的理論方法，結合廣西現有的衛星資料及亞熱帶氣候、地貌、植被等特點，對國內外的kerretal演算法、 becker & li演算法、 qinetal演算法和franca & cracknell演算法等10多種反演lst的分裂窗演算法及其相關的參數估算方法進行了適用性分析，得出採用輻射率模型中的beckerandli演算法計算廣西白天的lst比較適用。
  13. The deadlock - free behavioral routing algorithm on star graph

    星形圖上無死鎖的路徑演算法
  14. Methods of estimating baud rate, signal to noise ratio ( snr ) and reference phase are investigated. a modified euclidean algorithm is proposed to estimate baud rate of the burst packets. a cumulant based algorithm of estimating snr of star - qam is proposed which has better estimation performance in medium scope of snr

    研究了自適應調制中波特率，信噪比和載波相位等參數的估計演算法；提出一種基於修改的歐幾里得演算法的波特率估計演算法，這種演算法可以對突發分組的波特率做出準確估計；提出一種星型qam信號的信噪比估計演算法，在中等信噪比條件下，具有較好估計性能。
  15. 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。
  16. Chapter 4 discusses how to process live data by adopting wavenumber domain ( w _ k ) algorithm and its simplified algorithm, and achieves satisfying results

    第四章採用波數域及其簡化演算法分別對星載旁視sar和機載前斜視sar真實數據進行處理，取得了預期的結果。
  17. The algorithm of searching satellite is the most important

    尋星定位子系統的軟體實現中尋星演算法是非常重要的。
  18. Then presents the principle of gps navigation and orientation. at the fourth chapter, the kalman filtering arithmetic for dynamic gps is emphases

    在此基礎上介紹了gps的導航定位原理，給出了衛星可見性演算法、選星演算法及定位演算法。
  19. The functions of the software system include controlling the hardware, searching satellite and measuring the main parameters of the antenna

    軟體系統包括：完成對硬體的軟體控制，實現尋星定位子系統的尋星演算法以及對天線主要測量參數的軟體實現。
  20. The third and fourth parts introduce the software and hardware design of the searching satellite subsystem in which includes the discussion of the searching satellite algorithm

    第三、四部分詳細介紹了尋星定位子系統的軟、硬體設計，其中包括對尋星演算法的討論。
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