instantaneous sampling 中文意思是什麼

instantaneous sampling 解釋
瞬間采樣
  • instantaneous : adj 即刻的，瞬間的。 an instantaneous bomb 瞬發炸彈。 instantaneous death 即刻死去。 an instantan...
  • sampling : n. 1. 取樣（品），取標（本）〈指行動或程序〉。2. 樣品，標本。3. 剽竊拼湊歌曲。
  1. It involves not only the detection of signal frequency, signal phase and power factor but also calculation and control of phase. the method of calculating phase is based on fast fourier transform algorithm ( fft ). it is used to calculate signal frequency, signal phase, power factor and the phase on / off time according to sampling instantaneous value of voltage and current

    本文主要提出了採用信號處理技術（快速傅里葉變換fft ） ，根據電壓、電流采樣的瞬時值，計算信號頻率、信號相位、功率因數、分合閘相角的選相控制方法，並介紹了最終控制分合閘的原理與實現方法
  2. Firstly, design the software phase - closed loops ; secondly, realize the double closed loops control of the instantaneous value and the virtual value. furthermore, the dynamic flux imbalance of the output transformer caused by ordinary pi arithmetic is analyzed in detail. a new solution for flux balance by sampling the instantaneous primary current of the output transformer and introducing the on - line calculated bias current component into the voltage regulation arithmetic is presented

    系統軟體實現了ups的各個功能模塊，首先設計了軟體鎖相環；然後實現了輸出電壓瞬時值和有效值雙閉環反饋控制；並且在深入分析基本數字pi演算法所引起的輸出變壓器動態偏磁問題的基礎上，提出了一種改進演算法，實時消除了變壓器的偏磁。
  3. This paper has devised a plug - in data acquisition ( daq ) system based on isa bus and developed a real - time testing software with the platform of the graphic programming language - labview, which has test data ' s real - time sampling, analysis and processing, instantaneous plot saving, plot reoccurrence, data saving to disk and reading from disk functions and so on

    本課題設計了基於isa總線的內插式數據採集（ daq ）系統，並以圖形化高級語言labview為平臺編制了虛擬儀器實時測試軟體，實現了數據的實時采樣、實時分析處理、瞬間圖形存儲、圖形再現、數據存盤和讀入等功能。
  4. As the kernel of software, the algorithm is another emphasis of the paper ' s works. based on the principle of relaying working, after comparing the effect between the algorithm of instantaneous sampling and the algorithm of vector, the virtue of short data windows and precision action was stood out. and the choice of algorithm with three sampling data was for the reason of short data windows

    演算法理論作為微機保護的軟體核心也是本文的討論重點，以保護的動作原理為基礎，認真研究了采樣瞬時值法與一般的矢量值法的效果比較，突出了采樣瞬時值法時間窗短、動作準確的優點；而針對低電壓閉鎖所採用的三采樣值積演算法也正是出於時間窗較短，便於配合保護動作的考慮。
  5. The content of this dissertation include : orthogonal transformation of digital signal ; mathematic model of modulation signals and software - defined radio receiver ; nine feature parameters of the modulation algorithm and threshold of feature parameter ; development procedure of modulation recognition by ccs and the modulation digital signals produced through matlab ; discussion on sampling speed and instantaneous frequency and analysis of experiment " s result

    本文給出了在ccs集成開發環境下調制識別演算法模擬實現的程序設計和利用matlab模擬產生調制信號的方法；分析了調制識別演算法的模擬實驗結果；對采樣速率的選取、非弱信號段判決、瞬時頻率的計算以及演算法數據關聯性的簡化等方面進行了研究。
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