time delay element 中文意思是什麼
time delay element
解釋
時間滯后元件-
This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation
本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。 -
Time delay estimation ( tde ) by using three - element linear array is an important problem in torpedo trajectory tracking system which ttacks target according to strictly geometrical position. it is the basis of measurement of target distance, bearings etc. the error of tde influences directly the accuracy of trajectory tracking. the more efforts have been made in order to acquire high accuracy estimation
三元直線陣的時延估計是魚雷彈道測量系統中的一個重要課題，它依照嚴格的幾何關系進行目標定位，是測量目標距離、方位等參數的主要依據，時延估計的精度直接影響彈道跟蹤系統的精度，為提高時延估計精度人們進行了大量的研究和探索。 -
With compensation of signal ’ s time delay from different radiating element by phase shifters, phased - array antenna can control array beam easily. because there are no mechanical devices for rotating beam, the phased - array antenna system can scan everywhere in beam covered areas in millisecand by stepping the phase shifters. it improves the tracking velocity of antenna towards the object, and becomes the development trends of weapon system antennas
相控陣天線利用移相器補償信號到達輻射單元時間的差異，從而控制波束方向;天線沒有機械旋轉問題，只需改變移相器的設定值，波束便可以在毫秒級內掃描其覆蓋空域內的任何地方，提高了天線對目標的跟蹤速度，是目前武器系統天線的發展方向。 -
The evaluation method of element in state transition matrix is given when the wrong order of data packet is considered. considering the wrong order of data packets, the mathematic model of networked control systems with long time delay is developed. the sufficient and necessary conditions for stochastic stability of such networked control systems with long time delay are given
分析了長時延網路控制系統的二階矩穩定性和隨機穩定性；針對網路傳輸中的數據包的時序錯亂問題，提出了第二緩沖器的方法；分析了網路誘導時延的markov特性，並給出了時延markov鏈的狀態轉移矩陣中元素的求取方法；建立了存在數據包時序錯亂時長時延ncs的數學模型，並給出了對應的長時延ncs隨機穩定的充分必要條件。 -
In neuro - element pid and psd controllers if the time delay of the controlled object, is too long, the overshoot of the system will be too high and system even will be unstable. in order to solve this problem, the neuro controller is combined with the smith - predictor. thus the influence of time - delay to control system is overcome effectively
單神經元pid和psd控制演算法在被控對象存在大時滯時會產生超調，甚至使系統失穩，為了解決這一問題，本文最後將smith預估器引入了單神經元控制器中，從而很好地解決了時滯對系統的影響。 -
For ecological system, the state of the system in a moment will be influenced by the state in history as well as by the relation of species at that moment, say, the influence of time delay, and so if we consider it, we will be more precisely in discribe the change and development of the system ; on the other hand, the population of species may be distributed in different patchs because of the influences of envionment or artificial element, this made us had to consider not only the time element but also the spatial element, said the diffusion of species
對于生態系統而言，系統在某時刻的狀態（即種群密度的增長率）不僅受到當時各種群間關系的影響，也應當受到歷史的制約，也即是時滯效應的影響，因而在生態系統中考慮時滯因素，將能更正確的描述系統的變化于發展；另一方面，由於環境或人為因素的影響而使種群的分佈呈現一定的區域性，這就使得我們在對其進行研究時不僅要考慮時間因素，更應該考慮空間因素，即種群間的擴散效應。 -
The beam width is stretched. the algorithm performance has the very big weaken. but the convention beamforming algorithm performance is stabler, time delay unbalance, time domain sampling, plane wave supposition and array element the influence which creates to it is not big
通過比較，高解析度演算法在考慮上述情況后，波束方向出現偏差，束寬被展寬，幅度有很大的衰減，性能明顯下降;而常規波束形成演算法的性能較穩定，延時失配、時域抽樣、平面波假設和基陣的幅相不一致對其造成的影響不大。 -
Therefore, it is no time to delay that refining the design method of tall buildings. in this paper, tall frame and layered soil are treated as a single continuous system and an interactive analysis method is presented using finite element method and finite layer method. the settlement of foundation and the internal force of the frame are calculated with different stiffness of the superstructure
本文基於共同作用分析法研究高層框架和樁基礎的設計，即將高層框架與樁基礎視為一個統一的整體，採用有限元和有限層法進行共同作用分析，研究了上部結構剛度變化等因素對基礎沉降與框架內力的影響，並與常規設計法進行了比較分析，為改進和提高框架結構設計的安全和經濟提供了依據。 -
Computer simulation results show that the beamspace wsf algorithm retains the super performance of its element space counterpart when applied to the beam outputs of some practical acoustic - receiving array. 3. an improved form of classical time domain broadband beamforming is proposed by combining digital delay lines and fir filters
提出了對經典時域寬帶波束形成器的改進方法，採用數字延遲線和fir數字濾波器結合的方式實現時域波束形成，以消除波束畸變並實時實現結構特殊的空間頻率響應。
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