均勻線 的英文怎麼說
中文拼音 [jūnyúnxiàn]
均勻線
英文
uniform line-
They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由於它們還具有三角函數的優點，故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地， 3次均勻t - b樣條曲線曲面比同階均勻b樣條（ c - b樣條）曲線曲面具有更高的光滑度。The direction which embroiders wants consistently, while rising needle should make sure central point, while embroidering to loosen to make an effort tightly and appropriately to be even, while rising needle or ending don ' t tie knot, should stay an 1cm or so line head in the noodles anticipate back press a prison mutually, noticing don ' t make the line head entwine conglobation
一、繡出的方向要一致，起針時應確定中心點，繡時要松緊適度用力均勻，起針或結束時不要打結，應留出一厘米左右的線頭在面料背面相互壓牢，注意不要使線頭糾纏成團。The space - time distribution of chinese semi - ari d region surface water is n ' t even, the differences in a year are obvious ; the differences of underground water between years are not so obvious as surface water, but it still has a decreasing tendency, especially in shanxi and sha ' anxi provinces. there is a significant linear correlation between the precipitation and water resources in semi - arid region, the dynamic regularity of water resources is basically same as the dynamic regularity of precipitation
半乾旱地區地表水資源時空分佈不均勻，年內分配差別大，地下水資源年際間變化率不大，但總體有減少的趨勢，尤以陜西和山西突出。半乾旱地區降水量與水資源量線性相關顯著，降水量的變化規律基本上與水資源量的變化規律吻合。The anisotropy associated with the earth's rotation results in a slight deflexion of the ray paths.
與地轉有關的不均勻性會導致波向線產生輕微的偏轉。We consider next the electric field set up by a long thin uniformly charged wire.
我們接著討論由一細長、均勻帶電的直導線所產生的電場。The mutual coupling between elements is expressed in terms of the normalized impedance matrix of the uniform linear array, the concise expressions for the optimized weight of the lms algorithm and the signal - to - interference - plus - noise ratio are given. the effect of mutual coupling on the performance of the sinr is illustrated with two examples, a method for compensating the mutual coupling is present, the compensation effect of this method is verified by example
用譜分析法，把陣元問的互耦用陣列的歸一化阻抗矩陣來描述，推導了均勻線陣的最佳權矢量及信號干擾噪聲比的表達式，模擬計算了互耦對自適應天線陣列的信號干擾噪聲比的影響，給出了一種校正互耦的方法，數值模擬了校正的效果。4. problem of circular array ’ s high side - lobe ( relative to main - lobe ) and the lower depth of zeros is resolved using mode space transform, which changing uniform
4 .利用模式空間變換將均勻圓形陣列轉化成虛擬的均勻線陣，解決了圓形陣列副瓣電平較高（相對于主瓣） 、零點深度相對較淺的問題。The performance of beamspace high - resolution direction - of - arrival ( doa ) estimation is analyzed. a dense beamspace music ( dbmusic ) algorithm for the uniform linear array ( ula ) is proposed
深入分析了波束域高分辨方位估計性能，捉出了一種基於均勻線列陣的密集波束域music （ dbmusic ）法。Based on theoretical studies on these algorithms, by means of computer simulation and the water tank experiment, we analyzed the performance of these algorithms in uniform linear array, which included the separation and reconstruction of source signals and doa estimation performance
在詳細分析各種演算法內在機理的基礎上，針對均勻線列陣，通過大量的計算機模擬實驗與水池實驗數據處理結果，分析、討論了幾種演算法對目標源信號的分離、捕獲能力以及方位估計性能。Stress distribution at cross section of transverse uniformly distributed load and non - uniformly distributed load applied to concrete cylinder by finite element method is analyzed
摘要採用有限元的方法計算分析了混凝土圓柱體在受橫向均勻線荷載和非均勻線荷載時其橫截面上的應力狀況。The results show that the area of cross - sectional tensile stress exceeds 90 percent, and the value of tensile stress is relatively uniform when transverse distributed load and negate mean distributed load are applied to cylinder
結果顯示，在橫向均勻線荷載和非均勻線荷載作用時，圓柱體橫截面90 %以上的面積為拉應力，且拉應力大小相對比較均勻。This dissertation studies the high - speed way to apply music algorithm in an four - sensor uniform linear array ( ula ) system. ( 1 ) analyzing the disadvantages of the present algorithm based on fpga for eigen - decomposition, the dissertation proposes the mc - jacobi algorithm which is better for eigen - decomposition when using fpga
本文主要研究music演算法在一個四陣元的均勻線陣的測向系統上的fpga實現問題: （ 1 ）本文針對現有基於fpga實現特徵值分解（ evd ）的演算法的不足，提出更適合fpga實現特徵值分解的mc - jacobi演算法。The method which eleminates the doa ambiguity using the nula is presented in this dissertation. the theory and the algorithm of the doa ambiguity resolution is showed. the re - configurating array elements location is not necessary in this algorithm, and the ambiguiry is well suppressed
本文討論了通過非均勻線陣陣列設置解模糊的方法，闡述了變頻率解測角模糊的原理，並給出一種演算法，該演算法不需要對陣元位置進行設置，且對模糊有較好的抑制。In chapter 4, a chebyshev method beamforming for uniform circular arrays ( ucas ) is proposed based on dolph - chebyshev method for uniform linear arrays ( ulas ). this method is that it computationally efficient which makes it eminently suitable for real - time beamforming and beamstearing applications. we describe the new approach for synthesizing array patterns with guaranteed least sidelobe levels for any look direction
我們對基於均勻線陣dolph - chebyshev波束合成方法進行研究，提出了基於均勻圓陣dolph - chebyshev波束合成演算法，即期望信號在任意入射角度時，均能保證同樣的主瓣寬度和最小旁瓣電平的陣列方向圖合成演算法。For there are few good analytical methods in ntls ' sensitivity, in this paper, we uesd kuroda ' s equivalent circuit and adjoint network method to derive the sensitivity formulas of parabolic lossless ntl. and then we proposed the way of lumped loss, like the method of dealing with the loss in emtp, to deal with the loss of parabolic lossy ntl. and on the base of the way of lumped loss, we got the sensitivity formulas of parabolic lossy ntl
對于非均勻線的靈敏度分析，目前尚未提出很好的方法。本文首先利用基於科羅達等效的等效電路，使用伴隨網路法推導出了無損拋物線型非均勻線的時、頻域靈敏度公式。其次，為了解決有損拋物線型非均勻線的靈敏度計算，提出了一種類似emtp的集中處理損耗的有損拋物線型非均勻線的方法。Broadband source location method is investigated by using signal - phase - matching principle, and simulations and experiments are carried out to show the validity of the method ; two high resolution algorithms of broadband signals are proposed, which are the dft interpolation algorithm and the frequency invariant beam space algorithm. the proposed algorithms have no requirement for prior information of source locations, so the results of doa estimation can be unbiased ; a method of temporal - spatial averaging, which can improve the performance of doa estimation for uniform linear arrays, is given. this method can be applied in the most narrowband or broadband eigen - structure based high resolution algorithms
提出了利用信號相位匹配法的寬帶信號方位估計方法並從模擬和實驗兩方面對其進行了驗證；提出了基於dft插值的和基於頻率不變響應波束域的兩種寬帶信號高分辨方位估計演算法，這兩種方法在進行方位估計時均不需要進行方位預估，從而避免了因角度預估可能帶來的估計偏差；最後提出了一種提高均勻線列陣方位估計性能的時空平均法，該方法可適用於多數窄帶或寬帶的特徵結構類高分辨方位估計演算法中。The three - dimension dbf of circular array and cylinder array are presented. we adopt equivalent with uniformity linear array ( ula ) in cylinder beam forming, and compare pattern of directional elements with of omni - directional elements
在圓柱陣的波束形成模擬中，採用了等效均勻線陣的方法，簡化了數字波束形成的計算量，並且還對有向陣元和全向陣元在陣列波束形成中的影響進行了模擬比較。The robustness of high - resolution doa estimators in the elementspace and beamspace is investigated thoroughly. an error model of array is established. a novel class of weighted toeplitz high - resolution doa estimators based on the covariance matrix of ula output is proposed, which can obviously improve the performance of high resolution in the presence of array errors
系統研究了陣元域和波束域高分辨方位估計方法的穩健性，建立了陣列誤差模型，針對均勻線列陣提出了一種基於陣列輸出協方差矩陣的加權toeplitz化高分辨方位估計方法，能夠顯著提高存在陣列誤差情況下方位估計方法的高分辨性能。By this way, the exact solutions of parabolic lossless ntl can be gained
用這種等效方法可以求解拋物線型無損非均勻線的精確解。Using these formulas, we can calculate the sensitivity of arbitrary output with respect to arbitrary parameters of the network which includes parabolic ntls
利用所推導的靈敏度公式和已有的伴隨靈敏度公式，可求得含拋物線型非均勻線網路中任意輸出對任意參數的靈敏度。分享友人