random velocity 中文意思是什麼

random velocity 解釋
無規速度
  • random : n 〈罕用語〉胡亂行為,偶然的[隨便的]行動[過程]。adj 1 任意的,胡亂的,隨便的;(話等)信口亂說的...
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. Random pulse position modulation ( rppm ) signal not only has good resolution of distance and velocity, but also has low probability of interception and strong properties of eccm

    隨機脈位調制信號不僅具有良好的距離和速度分辨力,而且具有較低的被截獲概率和較高的抗干擾性能。
  2. The qualification of multipactor and the characteristic of the angle and velocity of secondary electron were study. bring forward a improved model of multipactor and solve it by a random sample made by monte carlo, as a result, a critical curve of multipactor was gained

    提出了一個改進型的次級電子倍增研究模型,利用蒙特卡羅法生成的隨機樣本來求解這個模型,得到了工作在2 . 85ghz的介質片的次級電子倍增敏感度曲線。
  3. The main purpose of this study is to simulation a random fluctuation of wind velocity fitted to specified power spectrum in low frequency range in our wind tunnel

    本文研究的目的是在風洞中模擬風速隨機波動的陣風,這個基礎性工作對于開展風洞中的其它研究有著重要意義。
  4. The distribution of stream - wise particle velocity follows the log - law under various flow conditions and for different particle diameters, and the fluctuation of the other two velocity components is random

    對不同的粒徑和不同的水流條件,顆粒縱向平均速度都符合對數分佈規律,垂向和橫向的平均速度屬于隨機波動的范圍。
  5. And a few module of quasi random code modulation signal and a radar signal processing module which can extract the information of velocity and range are carried on. the result can be applied on radar systems

    接下來實現了幾種偽隨機碼調制信號的模塊以及提取速度距離信息的雷達信號處理模塊,成果可用於實際的雷達系統。
  6. The model assumes that every vehicle tends to keep expected time - headway and each vehicle synchronously updates its velocity by estimating the velocity of the head vehicle, the distance headway and the probability of random slowdown

    該模型假定行駛車輛都趨向于保持一個期望的車頭時距,通過對前車速度和車頭間距的估計,並考慮隨機減速的影響對車速進行同步更新。
  7. Then, we use a simulation method to create a large number of radar measurement values, produce a quantity of random numbers using computer software and add them to the radar measurement values, we use kallman filtering method to calculate the location, velocity and trajectory coefficient of the target at the moment of the final tracking point, and use the numerical solving method of differential equation to calculate the trajectory, the location of the hostile artillery or the impact point of its own projectiles, finally, we calculate statistically the random error of the tracking system and analyze the location accuracy

    然後採用模擬模擬方法獲得大量的雷達測量值,由計算機軟體產生大量的隨機數,加入雷達測量值中,用卡爾曼濾波法計算出最後跟蹤點時刻的目標位置、速度和彈道系數,再用微分方程數值解法計算出整個彈道軌跡、計算出敵方炮位的位置或己方炮彈的落點,最後統計出跟蹤系統的隨機誤差,分析定位精度。
  8. Secondllv in the 1 d random traffic flow model. the relation function between the correlation and the creation. disappearance. brake probabilities of the vehicles is presented. according to the statistical mechanical approach to the spatial correlation functions. the theoretical results agree with that of the computer simulation. thirdh. based on the bml model. a main - road traffic flow model with two speeds on two dimensions is designed. this model simulate the traffic situation of one main road and several branches in the cit traffic lights placed on the crossing. vehicles breaking ~ vhile running and turning to other direction while jamming. we investigate the ~ ' e1ocitv and flo ~ ~ of the model when the initial densitvthe brake and turning probabilities. the green to signal rati3. thc number of the branches and the period of the signal are changed. then the reasons causing all the kinds of phenomena are analvzed. finallv. we simulate the bml model using the method of lattice boltzmann which ~ vas brought out by liu mu - renand obtain the velocity - density graph similar to the previous result. the upper critical densiw above which there are oniv jamming configurations. and the lo ~ ver critical density below which there are only moving configurations are the same as before. the boltzmann function which is on the lattices shows the moving and jaxmning transition obviouslv. thus it proves the possibilit of this method on the traffic research

    接著,建立了和研究了二維二速的主幹道模型,該模型模擬了城市交通中一條主幹道,多條支道的交通情況,在幹道與支道的交叉路口設置紅綠燈,車輛在運行中可以有對突發事件發生反應的剎車,在發生堵塞時,路口的車輛可考慮通過轉向來緩解交通等各種實際情況的發生,給出了車輛演化的演化方程,並通過計算機模擬,研究模型在改變車輛的初始密度、剎車概率、轉向概率、支道數、紅綠燈信號的綠信比、紅綠燈信號周期等各種情況下支、主幹道車輛的速度、流量的變化,並分析在各種情況下交通狀況的成因,提出改善交通的有效措施。最後,在劉慕仁提出的用格子boltzmann方法研究一維決定論交通流的思路下,將此法推廣到對二維bml模型的模擬上,得到了與用以往方法的研究結果相類似的速度-密度圖線,且車輛從運動相到堵塞相轉變的上下臨界密度是一致的,同時分別給出車輛在處于暢通相和堵塞相時, boltzmann函數在格子上的分佈情況,進一步驗證了此法的可行性。
  9. This paper relates to some problems about the determination of design ground motion parameters, which include the choice of the attenuation relationship of rock horizontal acceleration response spectrum, the impact of focal depth to rock peak horizontal acceleration and rock response spectrum curves, the choice of intensity envelops function and random input phase, the choice of soil nonlinearity and shear wave velocity, scale of design ground motion response spectrum etc. in the researches of relative aspect, based on a typical section plane of the engineering site, influence of the change of some parameters on design ground motion parameters and the existing errors and corresponding rules are studied by using the method of one dimension model of equivalent linearization

    摘要研究了確定設計地震動參數中涉及的若干問題,其中包括基巖水平加速度反應譜衰減關系的選擇、震源深度對基巖水平加速度峰值及基巖反應譜曲線的影響、強度包絡線函數及輸入隨機相位的選擇、土體非線性特性參數和土層剪切波速值的選擇、設計地震動反應譜的標定等問題。
  10. The wind loading of a tracking radar antenna, for example, results from a mean velocity component that varies with time plus superimposed random gusts

    例如跟蹤雷達天線的風力負載是由一個隨時間變化的平均速度成分與迭加的隨機陣風組成的。
  11. The results of random structures and determinate structures show that when the ranmomicity of parameters is considered, response of displacement and velocity will occur large changes

    對隨機和確定結構計算的結果表明,當考慮參數隨機時,位移、速度響應將發生大的變化。
  12. Applied the above theory and the dem program trubal, the unilateral compress problems for the regular generated particles with an interstitial fluid are studied, and the macro - strain - stress curves varied with the fluid properties and the velocity of the wall are gotten. then, he unilateral compress problems for the random generated particles are numerically simulated, and the macro - strain - stress curves are obtained. moreover, the numerical simulation results for the dry and moist cases are compared

    利用上述理論以及demtrubal程序,研究了存在填隙流體時顆粒規則排列單向壓縮問題,得到了宏觀應力應變曲線隨流體性質、壁的運動速度等的變化規律;並對隨機排列單向壓縮問題進行了數值模擬,得到了宏觀應力應變平均曲線;並對干、濕兩種情況下顆粒的模擬結果進行了對比。
  13. This paper presented a new approach for stacking velocity analysis, and discussed the principles, procedure, applicability, and applications of suppression of prestack random noises and outliers based on the new stacking velocity analysis method

    提出了一種新的疊加速度分析方法,並詳細描述了基於這種新的疊加速度分析進行疊前隨機噪音衰減和野值壓制的原理、實現步驟、應用條件以及應用效果。
  14. M s. if the motions of the galaxies were random, then we would expect that about half of them will recede from us while half of them will be approaching us. however, hubble found that not only most of them are receding from us, but also the receding velocity is directly proportional to the distance away from us

    假若星系運動的方向是隨機的,那麼應該有一半的星系正在遠離我們,另一半則接近我們,但結果實在出人意表,哈勃發現不單絕大部分星系正在遠離我們,而且它們的退行速度和與地球的距離成正比,這個關系可以下式表示:
  15. This paper primarily studys that how to make robot system works smoothly under condition of random obstacles by sensing environmental informations, on the other hand, the robot control system use dynamics method instead of location one to command manipulators performance, as a result, impact force between manipulators each other which is caused velocity _ break will be reduced greatly, and then, manipulators " life _ span will improve naturally, and because of reliable obstacles - avoidance arithmetics, robot system is almost able to feedback to obstacles as fast as it be, this character makes its intelligence mount up greatly

    本論文旨在研究針對惡劣環境(有隨機障礙物存在) ,使機器人在正常工作前提下,通過「感知」外界環境,迴避一切可能影響其工作的情況。另外,機器人控制方面,利用動力學代替位置控制,從而減小機器人在迴避障礙物過程中由於速度突變而引起的沖擊力,以提高其使用壽命;並利用可靠的避障演算法使其能在最短的時間內做出快速迴避的反應,以提高其智能性。
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