波達 的英文怎麼說

中文拼音 [bōdá]
波達 英文
poda
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  1. A 3d fiducial - referential un - esprit algorithm suitable for joint azimuth - elevation - carrier estimation in unknown noise environment

    未知噪聲背景下的波達方向及載波頻率三維聯合估計方法
  2. First, the nonlinear ls problem without constraint is converted to that subjected to inequality constraints by putting constraints on the do as of the received signals and toas of the first arrived signal with geometrically based single - bounce ( gbsb ) statistical channel model and cost - 207 model. then, a penalty function is used in the estimation of ms position

    首先，用基於幾何結構的單次反射圓模型和cost - 207模型，對期望定位用戶的各條多徑信號的波達方向和最先到達多徑信號的時間進行約束，將傳統的解無約束的非線性最小二乘定位問題或近似線性最小二乘定位問題轉化為解不等式約束的非線性最小二乘定位問題；然後，用內點罰函數法估計移動臺的位置。
  3. Firstly, the steering vector of mainpath of desired user is estimated by using code filtering method, then dummy signals are introduced, main lobe of wave is built by using the steering vector of mainpath of desired user and side lobes is constrained by using dummy signals

    該方法首先利用碼濾波的方法估計期望用戶主徑的波達方向，然後引入虛擬信號，利用期望用戶主徑的波達方向形成波束的主瓣，並利用虛擬信號抑制旁瓣。
  4. 4 ) a uniform crb expression of bearing estimation for spatially distributed sources in unknown noise environments is derived. more exactly, the crb performance of bearing estimation for spatially distributed sources in several typical spatially - correlated noises is evaluated theoretically and numerically, respectively. it is disclosed that the estimated errors mainly depend on space ambiguity between signal and noise components

    4 ）推導了未知噪聲環境中空間分佈源波達方向估計的統一的crb表達式，分析了幾種典型的空間色噪聲情況下分佈源波達方向估計的極限性能，揭示了信號分量和噪聲分量之間的空間混疊對分佈源波達方向估計的決定性作用。
  5. Multi - user direction - of - arrival estimation in cyclic cumulant domain via spatial signature

    基於空間特徵的多用戶循環累量域波達方向估計演算法
  6. Doa stands for " dead on arrival ", a common auction term that means the seller guarantees the item will work when it arrives at your house

    波達主張"死亡"拍賣名詞即共同賣方擔保項目時將到達你家
  7. The correct estimation of incident signals " direction of arrivals ( doas ) is the premise of doa - based beamforming algorithms

    對來波的波達方向（ doa ， directionofarrival ）進行正確估計是doa波束形成演算法的前提條件。
  8. And he when toward the bloom of his sweet youth the down began to shade his darkening cheek, took counsel with himself speedily to take to him for his wife the noble hippodameia from her pisan father ' s hand

    當他甜蜜的青春之花盛開，臉頰剛被初生的絨毛染黑，就接受建議急著要把高貴的希波達彌亞迎娶，從她的父親，比薩王手裡。
  9. The computer simulations indicated that the weighted subspace fitting technique in the beamspace possessed a significant advance of 2 - d estimation for coherent sources

    計算機模擬表明，在波束空間內的加權子空間擬合技術具有良好的相干信源二維波達方向估計性能。
  10. For the purpose of estimating 2 - d doa of uniform circular array ( uca ), phase mode excitation based uca beamforming is employed to obtain real - valued beamspace manifold

    對均勻圓陣列（ uca ）二維波達方向估計問題，運用相位激勵模式波束形成技術，得到圓陣波束空間實值陣列流形。
  11. Combining the blind beamforming with the estimation of doa, the doa can be estimated at the same time when the source signals are recovered

    並將盲波束形成與目標方位估計相結合，實現在捕獲、恢復目標源信號的同時，估計出目標的波達方向。
  12. A new direction of arrival estimation method is proposed using a single vector hydrophone, which is composed of three spatially co - located but orthogonally oriented velocity hydrophone plus another co - located pressure hydrophone

    摘要提出了一種基於單個矢量水聽器的二維波達方向估計方法，該矢量水聽器由三個空間軸向垂直的振速水聽器和一個聲壓水聽器構成。
  13. Do a estimation is often encountered in vary application of radar and communication system. the dissertation then discusses the estimation of interested signals in chaotic noise. we analyzed three different algorithm for this purpose

    混沌背景中的有用信號的參數估計問題是在雷達應用（如波達方向估計）和混沌調制的通信系統中窄帶干涉抵消中經常遇到的重要問題之一。
  14. In order to be applicable to practical underwater systems, several kinds of the blind beamforming algorithms were discussed in this thesis, and direction - of - arrival ( doa ) estimation based on bbf is also discussed

    針對水下聲系統的應用背景，本文對盲波束形成演算法做了系統的分析與討論，並對基於盲波束形成的目標波達方向估計進行了研究。
  15. Based on the facts that time of arrival ( toa ) of the first multipath signal is always most close to that of los propagation and angle of arrival ( aoa ) of the first multipath signal is not always most close to that of los propagation among all multipath signals in nlos propagation environment, a location algorithm is proposed to mitigate the influence of nlos propagation, which effectively reduces the feasible region of a ms in macrocells

    依據在非視距傳播環境下存在的以下兩個事實：第一，最先到達多徑信號的波達時間總是最接近直達波的波達時間。第二，最先到達多徑信號的波達方向並不一定最接近直達波方向。針對宏蜂窩系統，從有效減小移動臺可行域的角度，提出了一種減輕非視距影響的定位演算法。
  16. Using test - bed system, we can validate all methods in this field and evaluate algorithms. in this paper, the implement of the smart antenna test - bed is detailedly discussed. based on this test - bed, the new algorithms of doa estimation and space - time processing are presented and tested effectively using the actual data

    論文主要討論了智能天線系統的實現問題，在此基礎上，對波達方向（ doa ）估計演算法和cdma系統空時處理方面的演算法進行了研究，得到了兩種新的doa估計演算法和一種低復雜度空時級聯演算法。
  17. Second, since there are lots of redundant items in the fourth - order cumulant matrices, we introduce an algorithm of direction - of - arrival estimation based on the maximal set of nonredundant cumulant ( msnc )

    其次，由於利用四階累積量進行波達方向估計時計算量很大，文中提出了一種基於最大非冗餘累量集合的方向估計方法。
  18. A novel class of analysis tool in signal processing - higher - order statistics ( hos ) is presented in this thesis. we then use it along with the well - developed algorithms such as esprit and music in direction - of - arrival ( doa ) estimation

    本文介紹了信號處理中的一種新的分析工具? ?高階統計量，並與傳統的子寬間旋轉不變技術和多重信號分類技術相結合進行波達方向估計。
  19. First, the thesis introduces the definitions and the attributes of the higher - order statistics. it is insensitive to additive gaussian noise ( white or colored ), which is what we base on to doa problems. then two doa estimation algorithms based on higher - order statistics are presented, one is that forming cumulant matrix pencil used in esprit to estimate doa problems, the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant, and comparing the effects of the estimation to conventional covariance - based doa algorithms "

    論文首先對高階統計量的定義和性質作了介紹，特別指出了高階統計量對加性高斯噪聲（白色或有色）不敏感，這是我們利用它進行波達方向估計的理論依據，然後文中提出了兩種基於高階統計量的波達方向估計方法，一種是利用子空間旋轉不變技術構造四階累積量矩陣進行估計的方法，另一種是基於四階累積量陣特徵分解的空間譜估計測向方法，並將它們的估計效果與傳統協方差方法的效果進行比較。
  20. Subsequently, the primary knowledge of sound wave and the model of signal transmission are introduced. at last, the models of the narrowband and broadband array signal processing, the theory of the number of source signal estimation, the theory of invariable estimation and usage of high - order statistics in array signal processing are presented

    文中詳細介紹了聲波傳播的基本知識、信號傳輸模型；窄帶和寬帶信號的陣列處理模型；信號源個數估計理論；波達方向估計理論以及高階統計量在陣列信號處理中的應用。
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