雜波系數 的英文怎麼說

中文拼音 [zábōxìshǔ]
雜波系數 英文
clutter coefficient
  • 雜 : Ⅰ形容詞（多種多樣的; 混雜的） miscellaneous; varied; sundry; mixed Ⅱ動詞（混合在一起; 攙雜） mix; blend; mingle
  • 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...
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Combined with the foundation research ( avigation science fund 04d52032 ) ” study on cfar detecting expert system base on clutter tracking ”. this paper study the fractal technic and snake algorithm on the application of clutter tracking. it proved that the method was effective by the algorithm which adapt to the real and simulant clutter data

    本課題結合航空科學基金「基於雜波跟蹤融合的恆虛警檢測專家系統研究」 ，研究分形技術和snake演算法在雜波跟蹤中應用，設計了相應的演算法，通過分析真實數據和模擬數據驗證了演算法的有效性。
  2. 4. the signal data collected in expteriment are taken out in emulational research of system experiment. many methods such as adding window in frequency field, eliminating static object and so on restrain the width and sidelobe of static mussy weaves and detect out the target availably

    4 、在系統實驗模擬研究中調出實驗採集信號數據，使用頻域加窗不加窗、清除靜態目標等方法很好地控制了靜態雜波干擾的幅度及旁瓣，有效地檢測出了目標。
  3. Furthermore, we use the wave function and binding energy obtained from above to calculate the photoionization cross - section of the impurity

    然後在此基礎上，我們採用所選的波函數和得到的束縛能進一步計算了類氫雜質體系的光致電高截面
  4. In the second part, using the wave function and binding energy obtained from the first part, the photoionization cross - section of the impurity is calculated

    在第二部分，我們採用第一部分所選的變分波函數和得到的束縛能進一步計算了類氫雜質體系的光致電離截面。
  5. Three dimensional interaction flowfield over high - speed spinning projectile with lateral jets is numerically simulated in this dissertation firstly. complicated shocks wave patterns is analyzed. several factors concerned such as high - speed spinning, attack angle, base bleed and so on, are studied

    本文首次完成了高速旋轉彈丸側噴三維干擾湍流流場的數值模擬，分析了彈丸側噴流場復雜的波系結構，研究了高速旋轉、攻角、底噴等因素對彈丸側噴流場的影響規律，深入分析了旋轉側噴彈丸的空氣動力學特性。
  6. This article briefly introduces the theory, advantages and main function of crosswell technology, and the developing statues of it. in this article, the author elaborates the operation method of crosswell in block shen95, and detailed analyses the designing of layout, identification of complicated wave field, gained data, field quality control measures and data processing & interpretation method

    本文簡要介紹了井間地震技術的原理、優勢、主要作用以及國內外發展概況，闡述了沈95塊井間地震試驗的施工方法，較詳細地對觀測系統的設計、復雜波場識別、獲得的數據資料、野外質量監控措施以及資料處理、解釋方法進行了分析。
  7. In this paper, the target radiate characteristics and waveband selection of the infrared system reviewed briefly ; the suppression of the stray radiation in the infrared sub - system is discussed ; the material selection, the support structure and optimization of the primary mirror in the infrared sub - system of the theodolite, every factor which will affect the surface figure of the mirror is discussed in detail and get the result that in the circumstance of shooting range, the primary factor which affects the surface figure of the mirror in the infrared sub - system is temperature changing, this ca n be resolved by using material of low expansion coefficient and using same material in the mirror and the mirror seat

    本文將對紅外系統的目標輻射特徵分析和波段選擇進行簡要回顧，討論紅外系統中雜散輻射的抑制，並詳盡分析經緯儀紅外光學系統設計中所涉及到的反射鏡的材料、支撐、結構和優化設計等問題，認真討論和分析影響主鏡的面形精度的各種可能因素。並指出：在靶場環境下影響經緯儀紅外分系統主鏡面形精度的主要原因是溫度的變化，這種情況可通過選擇低線膨脹系數的材料並且使鏡座和反射鏡採用相同的材料予以解決。
  8. ( 3 ) the basic theories and techniques on distributed radar cfar detection are reviewed. in particular, using the numerical performance simulation results, the performance of distributed cfar detect system under nonhomogeneous backgrounds and simple detect conditions are analyzed in some details. we have summarized the performance characteristics of distributed cfar detect systems against interference and edge clutter when different fusion rule is used

    西北工業大學博士學位論文（ 3 ）對分散式cfar檢測技術的相關理論、方法進行簡要總結與分析，特別是利用數值分析與性能模擬方法，對非均勻環境下簡單條件檢測系統的性能進行了較為深入和系統的研究，總結了不同融合方式時分散式cfar檢測在抗干擾與雜波方面的性能特點。
  9. In this paper, it is expounded the relationship of two - channel perfect reconstruction filter banks to wavelet transform on the base of signal processing and engineering application ; avoiding complex path formula deduction, the selection of a desirable mother wavelet function becomes the design of two - channel perfect reconstruction filter banks

    摘要從信號處理和工程應用的角度出發，避開了復雜的數學公式推導，闡述了雙通道濾波?組與小波變換的關系，並討論了母小波函數的選擇可歸結為正交鏡像濾波器的設計。
  10. This thesis discusses the pulse doppler ( pd ) weather radar signal processing system including digital intermediate frequency ( if ) receiver, especially on the application of if sampling and digital demodulation technique in pd weather radar signal processing system, the influence of amplitude and phase unbalances of in - phase and quadrature channels on weather radar echo spectrum estimation, ground clutters elimination algorithms and a typical engineering realization scheme of pd weather radar signal processing system

    本論文研究的是採用數字中頻接收技術的脈沖多普勒氣象雷達信號處理系統，重點研究了中頻采樣及數字解調技術在脈沖多普勒氣象雷達信號處理系統中的應用、正交雙通道幅相不平衡對氣象回波譜估計的影響、地雜波濾波演算法，以及脈沖多普勒氣象雷達信號處理系統的具體工程實現。
  11. This technique is mainly involved two steps : 1 ) vegetation effects correction : we used ndvi ( normalized difference vegetation index ) derived from tm and avhrr measurements for spatial and temporal variations of vegetation covers at different scales

    但由於電磁波與地表相互作用的復雜性，雷達後向散射系數除受地表介電常數（土壤水分）影響外，還受到地表粗糙度、土壤類型、植被覆蓋以及雷達入射角、頻率、極化等多種因素的影響。
  12. In chapter 2, some statistics models of radar clutters are investigated under the high resolution radar, and some relation between the input and output correlation coefficient of zeros memory nonlinearity ( zmnl ) are analyzed, then the fast numerical method ( called error controlled method ) which utilize calculating input and output correlation coefficient of zmnl is proposed

    第二章以高分辨雷達雜波模擬為研究對象，以零記憶非線性變換（ zmnl ）為研究手段，推演了幾種典型雜波在zmnl變換前後輸入輸出間非線性變換關系，提出了求解輸入輸出非線性關系式的快速數值求解方法（ 「誤差控制」法） 。
  13. It is studied that small inclusions in aluminum alloy are detected by ultrasonic transmission method in this paper. frequency analysis of the ultrasonic signal is done. harmonic factor and relative valid spectral power are calculated

    本文採用超聲穿透法對ly12鋁合金板材細小夾雜物進行了檢測試驗研究，並對超聲信號進行了頻譜分析，計算了諧波系數和相對有效譜功率。
  14. A spectrum estimation operator is designed and applied in the genetic algorithm to derive the filter coeffients so as to get the satisfactory spectrum property

    設計了一種譜估計子，按照該估計子可使遺傳演算法找到較優的濾波器系數，得到滿意的雜波譜特性。
  15. The concept of otn node transmission model is introduced. the requirement of otn node transmission model is discussed. this model uses the frequency domain transmission matrix to express the otn node transport characteristics. the simplified model based on wdm and im - dd systems, the relationship between node characteristics and model parameters and measurement of model parameters are also discussed. at last a briefly discussion on how to develop the otn simulation and cad software based on our model is demonstrated

    在線性時不變的假設下，提出利用頻域傳輸矩陣來表示節點傳輸特性的方法給出了oxc和oadm兩類光傳送網節點的統一的表示根據目前通用的波分復用強度調制直接檢波系統的特點對復雜的頻域傳輸矩陣進行了簡化並對通常所關心的節點主要性能指標與模型參數的關系模型參數的測量和計算模型的設計與計算機模擬輔助設計軟體開發的銜接問題進行了討論。
  16. It researches three ways of characteristics extraction of signals including zero - center instantaneous feature, wavelet analysis feature and a feature set consisting of fractal dimension, l - z complexity degree, entropy and resemblance coefficient

    在特徵提取部分研究了信號的零中心瞬時特徵、小波分析特徵以及由分形、 l - z復雜度、熵和相像系數組成的特徵集。
  17. To resolve the question of tracking highly maneuvering targets in clutter with different sensors, the theory of multi - sensor data fusion and algorithm of joint probabilistic data association have been analyzed in depth. in this thesis, with the using of matlab simulating tool, it accomplished the tracking of three maneuvering targets in clutter and completed the algorithm emulation of every phase in multi - target tracking. from the satisfied result of simulation, the validity of target tracking algorithm in whole data fusion system has been proved

    論文針對多雜波環境下的高度機動目標，依據多傳感器數據融合的理論基礎，基於目標跟蹤領域中的概率數據關聯演算法，對於三個機動目標在雜波環境下的軌跡進行跟蹤，並在matlab環境中，完成了多目標融合跟蹤各個階段的演算法模擬，取得了滿意的模擬結果，從而證明了整個系統的數據融合目標跟蹤演算法的有效性。
  18. Abstract : a 3d numerical solution of transonic turbulent flowfield inside a compressor rotor is analyzed with a consideration of blade tip clearance

    文摘:藉助于考慮葉片頂部間隙的壓氣機轉子內跨音速湍流流場的三維數值解，得到了該轉子流場中的復雜渦系與波系結構。
  19. For applications involving shocks, second order schemes such as tvd schemes are usually adequate if only relatively simple structures are present in the smooth part of the solution. however, high order shock capturing schemes ( order of at least three ) are more efficient than low order schemes when a problem contains rich structures as well as schocks

    在計算含有激波但光滑區不存在復雜波系結構的流場時，二階差分格式如tvd類格式已能夠得到比較理想的數值計算結果；然而，對于即含激波，光滑區又富含各種波系結構的流場，高階高精度格式的激波捕捉格式相對低階格式具有更高的解析度，更能夠反映流場的真實流動。
  20. In the wavelet image compression system ， the choice of wavelet basis directly determines the statistical characteristics of wavelet coefficients, thus it not only affects subsequent processes, but also affects the final compression ratio and the the quality of reconstructed image. the method of realizing wavelet transform determines computational complexity, whether the transformed data can be lossless recovered or not, etc., accordingly it can affect the time spending on compression and the quality of reconstructed image

    在小波變換圖像壓縮方法中，小波基選擇的好壞，直接決定小波系數的性質，從而影響壓縮過程中后繼的其它處理，影響最終的壓縮比和圖像重建質量；小波變換的實現方法決定著計算的復雜度、數據的恢復性能等，從而影響壓縮時間和圖像重建質量。
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