performance envelope 中文意思是什麼

performance envelope 解釋
飛行技術性能曲線的包絡線
  • performance : n. 1. 執行,實行,履行;完成;實現;償還。2. 行為,動作,行動;工作。3. 性能;特性。4. 功績;成績。5. 演奏;彈奏;演出;(馴獸等的)表演;把戲。6. 【物理學】演績。
  • envelope : n. 1. 信封;紙袋;包封,封皮。2. 殼層,外殼。3. 【數學】包(絡)線;包跡。4. 【航空】氣囊;【天文學】包層;【生物學】包膜,包被。
  1. By theory and practice simulation, the several types of constant envelope modulation techniques are analyzed and compared, including theirs modulation principle, phase path, the modulated wave envelope, power spectrums, error bit rate and the influence of its power spectrums of the band - limited and non - linear, etc. especially we have researched the ijf - oqpsk modulation technique, and the performance of its inter - symbol interference and time jitter free, and its strongly resisting of spectral spreading

    結合理論和實驗模擬結果,分析討論了衛星通信中的各種恆包絡調制技術,對它們的調制原理,相位路徑,已調波包絡,功率譜密度,誤碼性能,以及帶限非線性通道對其功率譜的影響等方面都作了研究和比較。特別研究了ijf ? oqpsk在消除碼間干擾和定時抖動方面的性能及其優良的旁瓣特性和抑制頻譜擴展特性。
  2. From the research of ijf - oqpsk, we draw the conclusion that, compared with bpsk, qpsk and msk modems, in the band - limited and non - linear channel, it has nearly constant envelope, less spectral spreading, better pe performance and the less interference of the adjacent channel, et. so, it is more suitable for the satellite communication channel

    通過對ijf ? oqpsk的分析研究可知,它相對于傳統的bpsk和qpsk調制方式,在帶限非線性通道下,具有包絡近似恆定,頻譜擴展小, eb no惡化小,對鄰道產生干擾弱等優點,因而它更適合於衛星通道。
  3. Standard test method for thermal performance of building materials and envelope assemblies by means of a hot box apparatus

    用高溫實驗室法測定建築材料和包裝組件熱性能的標準試驗方法
  4. Mtcem ( multi - tone envelope method ) can accurately forecast performance parameters on a set of stored channel and directly decide usable frequency choice. as hf channel characteristic is closed to gauss, mtcem may be simplified to multi - tone envelope method rtce system. for certain user ' s request and link status, double tone complex envelope method rtce, double tone envelope rtce, adaptive hf channel sounding and communication system, all that can easily derived from mtcem

    多音復包絡實時選頻系統,當通道特性近似於高斯通道時,整個系統可以簡化為多音包絡法實時選頻系統,針對不同的用戶要求和電路通道狀況,很容易由它派生出較為簡單的系統,如雙音復包絡法實時選頻系統,雙音包絡法實時選頻系統,短波自適應通道探測和通信系統。
  5. Refer to individual performance table envelope. do not run continuously at the performance table boundaries, run only for a short period of time at boundary conditions

    根據每種壓縮機的性能參數表,在性能參數表中的邊界條件工況下,在壓縮機僅能短時間運行,不得連續運行,不得連續運行,以免損壞壓縮機。
  6. Flutter is the most important instable problem and it restricts the flight envelope and performance of a vehicle. aeroservoelasticity, including active flutter suppression technology, is a multidisciplinary optimization technology that studies the interaction of flexible structure, unsteady aerodynamics and flight control system

    以主動顫振抑制系統設計為代表的氣動伺服彈性力學( ase )是一門涉及柔性結構、飛行器運動引起的定常和非定常氣動力以及飛行控制系統相互作用的多學科技術。
  7. The method based on joint parameter estimation shows preferable performance almost at all times, in cases of various number of targets and various type of signal envelope

    基於參數聯合估計的多目標定位方法在不同目標數目、不同信號包絡的定位實驗中都有較好的表現。
  8. The detection perfermance of envelope detector and square - law detector is analyzed, and acquisition performance of non - correlate detector is studied later. the result is important to analysis direct long - cycle pn code acquistion

    分析了採用包絡檢測器及採用平方律檢測器數字碼環檢測特性,以平方律檢測器為例分析其捕獲特性。
  9. It is evident that the correlations reported in the literature present very wide performance envelope for the predictions for any given flow condition and tape geometry

    迄今未見有流體在插有扭帶管內處于中間流動(或過渡流動)狀態的研究報道。
  10. A new control strategy is presented by combining fuzzy - neural control with feedback control under considering the uncertainties of robotic system firstly based on robot force / position hybrid control. fuzzy - neural network is used to learning the boundary of envelope function of uncertainties, and the feedback controller is used to enhance the complete performance of fuzzy - neural control strategy

    在機器人力/位置混合控制的基礎上,首先設計了一種模糊神經網路控制器與反饋控制器相結合的控制方案,採用模糊神經網路在線學習所有不確定性的包絡函數的上界,引入反饋控制器,以增強模糊神經網路控制策略的完備性。
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