in a clutter 中文意思是什麼

in a clutter 解釋
雜亂
  • in : adv 1 朝里，向內，在內。 A coat with a furry side in有皮裡子的外衣。 Come in please 請進來。 The ...
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  • clutter : n. 1. 〈方言〉喧囂。2. 混亂，（房屋等）擁擠雜亂的一團。vt. 〈英方，美〉弄亂，攪亂；亂七八糟地堆滿 （up, with）。vi. 〈方言〉喧鬧，吵吵鬧鬧地跑 （along）。
  1. Hearing a clutter in the passage of their inn, i ran to the window.

    聽到他們旅館里走廊上有一陣嘈雜聲，我便跑到窗口。
  2. Analysis and simulations are given showing that the 2 a - efa has satisfying clutter suppressing performance and the better space - time respondence in ideal system condition

    理論分析和模擬研究表明- efa方法在理想情況下具有令人滿意的雜波抑制能力和較好的空時響應。
  3. Sea clutter mainly occurs close to the radar site. it appears as a stationary feature in an animation sequence

    海雜波主要出現在接近雷達位置的地方，而在圖像動畫中一般是呈現靜止不動的。
  4. The emphasis in this composition is windshear signal processing technology. some processing methods are introduced in detail, they are suppressing clutter, extracting windshear parameters, computing hazard factor and etc. the signal processing simulation is accomplished on computer, it includes simulating microburst echo signal, simulating ground clutter echo signal, filtering clutter, estimating wind speed and calculating hazard factor. from the simulated results, a dangerous windshear is detected 5o ~ 78s, so the radar performance meets the certification requirements proposed by faa and nasa

    本文重點研討了風切變信號處理技術，對雜波抑制技術、風切變特徵參數提取技術及危險因子計算方法等內容進行了深入的研究，並進行了計算機模擬，包括微下擊暴流回波信號模擬、地雜波回波信號模擬、雜波抑制、風速提取和危險因子計算。
  5. The mainly work of this project : 1 a mathematic model of the ground clutter for airborne pd radar is established and the clutter power spectrum is calculated by the method of integrating reflected energy between constant doppler loci in range - gate circle

    本課題的主要工作包括：一、對機載相控陣雷達的雜波功率譜進行數學建模，採用沿距離門等多普勒線區域積分的方法求解雜波功率譜。
  6. However, in this paper, we propose an electromagnetic analysis of the tree trunks - soil clutter by fdtd method according to a 4 - steps solution, as mentioned in section 5. and in section 6, we prove the liability of this analysis. numerical results are presented in section 7. we compared our results with that of duke university, and both are in good agreement

    按照新方法的四個步驟計算地面上樹乾的散射，得出了模擬建模的數值結果，並與美國duke大學的模擬結果進行了對照，二者吻合良好，證明了新方法的有效性和優越性。
  7. A multiple targets tracking algorithm in clutter

    密集雜波環境下的快速數據關聯演算法
  8. Abstract : it is essential to research radar clutter with non - gaussian spectrum and non - r ayleigh distribution in modern radar design. based on spherically invariant rando m process ( sirp ), this paper applies a new algorithm to model the clutter with k d istribution in amplitude and any power density spectrum. at last it is proved tha t thi s method is correct and applicable with real simulative clutter and statistical detection result

    文摘:研究並模擬具有非瑞利幅度分佈和非高斯功率譜的雷達雜波是現代雷達信號處理中的一個重要的研究課題.文中基於球不變隨機過程（ sirp ）的建模方法，針對實地採集的幅度滿足k分佈並具有有理功率譜的高解析度雷達雜波，運用現代譜估計演算法對其進行建模和模擬，並以模擬雜波與實際雜波的數據對比和統計檢驗的結果對該方法進行了驗證
  9. 2. it is necessary to optimize the data to get a smoother surface because the data acquired by cmm is clutter and the blunder existing in automotive model shoud be removed

    由於汽車油泥模型中製作誤差的存在以及接觸式三坐標測量儀的測量數據的雜亂性，因此需要通過優化措施來對其進行優化。
  10. First in this paper, we review the development of radar signal processing and cfar detector, analyse the structure and principle of the signal processor, ca - cfar and os - cfar detectors. then, in view of the characteristic of prc cw signal, analyses the statistics characteristic of scattering bodies, models of target, noise, ground - clutter and weather - clutter are made. these lay a theoretic foundation of signal processing and cfar detector

    然後，本文針對x波段偽隨機m序列相位編碼連續波信號體制，分析了各種散射體的統計特性，對雷達目標及檢測背景噪聲（熱噪聲、地雜波和氣象雜波）進行了理論分析和統計檢驗，建立了目標及檢測背景的目標模型，確立了信號處理和恆虛警檢測的理論基礎。
  11. Abstract : have connected with ir target signature research, this paper deals with the principle and realization for the ir imaging terminal - guidance technology of an air - to - air missile in clutter backgrounds. the radiation signature of clutter earth backgrounds is analyzed, and the comprehensive analysis of the target ir radiation signature types of a military jet fighter as the mainly attacked target for air - to - air missile is gave. also we discusses the extraction and algorithm for target ir signature

    文摘:本文結合對目標紅外特性的研究，論述了在復雜背景條件下空-空彈紅外成像末制導技術的原理和實現，分析了地面背景的輻射和散射的特徵;綜合分析了軍用噴氣式戰斗機作為主要被攻擊對象的紅外輻射特性，並給出了目標紅外特徵提取的多種方法和演算法
  12. At last, this paper analyzed the influence of the inversive receiver to the chracteristic of the clutter and the ratio of signal power and the noise power, discussed the effective detection of target signal in correlated clutter, and then put forward a new method naming multi - periods shift accumulation for detecting moving target when not knowing the exact movement parameter

    最後，本文分析了倒置接收對目標回波信噪比及雜波特性的影響，討論了在相關雜波區對回波信號有效檢測的方法。針對如何在彈目相對運動參數未知的條件下對高速運動目標進行積累檢測這一問題，提出了一種多周期移位積累的新方法。
  13. In order to limit the sensor numbers of the crossing location association method in high clutter or target density environment, a generalized likelihood ratio approach to eliminating ghosts is given. the approach is based on the fact that the sound intensity distribution of the same target is identical

    為了防止當目標密度或雜波密度較大時，交叉定位融合需要傳感器過多，根據同一目標的聲壓分佈一定的特點，設計了一種消除交叉定位中虛假目標的廣義似然比檢驗法。
  14. In some way the magnificent offers certain magazines had made him leaked out, and oakland ministers called upon him in a friendly way, while professional begging letters began to clutter his mail

    某幾家雜志給他的豪華稿酬不知道怎麼泄露了出去，於是奧克蘭的牧師們便來對他作友誼拜訪職業性的求助信也充斥了他的信箱。
  15. A new method for the detection of moving dim targets in cloud clutter image sequences is proposed

    摘要提出了雲雜波背景下序列圖像中弱目標檢測新方法。
  16. In certain phased array radar, there are only several pluses in a radar beam, which makes against clutter cancellation. the four - pulse canceler is commonly adopted in this instance. we bring forward some schemes of clutter rejection to improve performance of radar system

    結合某型相控陣雷達的動目標處理系統研製，模擬了工程中採用的四脈沖對消技術和設計級聯雜波抑制濾波器的方法，並給出了相應的性能指標。
  17. Sponsored by dmc - radar applied in a navy range, this dissertation focus on the low - altitude / low - angle radar target detection & tracking techniques. it contains four parts : in the first part, the models of sea - clutter and multipath propagation are studied, which affect the radar ' s detectability and tracking ability of low - altitude target seriously

    結合海軍某靶場dmc相控陣雷達的研製，著重研究了海面上低空目標雷達探測和跟蹤測量的有關技術，論文分為四個部分：第一部分系統分析了海雜波與多徑傳播的建模與模擬問題。
  18. Further, supplying annotation in a crosscutting mechanism makes it possible to design a more loosely coupled system while still avoiding annotation clutter

    其次，以橫切機制提供注釋使得設計一種更鬆散耦合的系統、同時避免注釋混亂成為可能。
  19. The ef detection can overcome the limitation of cfar detection and can detect the targets in strong clutter environments. however, the ef feature is symmetric in the sense that a deep target - sized shadow can initiate a high response as well as bright target - sized objects

    在結合ef特徵方面，該方法可以克服cfar的缺陷，在強雜波環境中能有效檢測目標，但同時存在負值效應，給檢測帶來了新的虛警。
  20. Therefore, the target signals, which are submerged in chaos clutter or chaos clutter mixed with a certain intensity of white noise, can be detected on the basis of the predicting error

    這樣可根據預測誤差對淹沒在混沌雜波及混沌雜波加一定強度的白噪聲中的弱目標信號進行檢測。
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