time domain concept 中文意思是什麼
time domain concept
解釋
時域概念-
Modern control theory has arisen with the advent of high - speed digital computers and characterized by the state variable concept with emphasis on matrix algebra and with analysis and design principally in the time domain
現代控制理論是隨著高速數字計算機的出現而產生的，主要特點是使用狀態變量的概念並強調矩陣代數和主要在時間域進行分析和設計。 -
This paper does some research in the high - avail and real - time character of ethernet when it appling to fieldbus domain. in high - avail, made a concept of redundancy manager, and put forward some ethernet ring structures on the base of it. we can find these meet different levels of avail requirement
在高可靠性方面，提出了冗餘管理器的概念，在它的基礎上形成的幾種以太網環網結構，可以滿足不同層次的可靠性要求；在實時性方面，對傳統以太網加以改進，採用了交換技術、高速以太網技術、全雙工埠交換的方式、優先級標志技術、虛擬網技術等新技術。 -
Based on the commonly used strip theory with the extension of taking into account the instantaneous variation of the wetted hull surface during the motion and its effects on the ship hydrodynamic characteristics, this dissertation mainly calculates the ship motions and loads in waves in time domain and elementarily investigates some nonlinear characteristic of ship motion and hydrodynamic coefficient. it is hoped that the research had an engineering value for the predication and evaluation of seakeeping performance in the concept ship design stage
本文基於擴展的切片理論，計入船體運動時濕表面的變化及其對船體流體動力性能的影響，在時域內計算了船舶在波浪中的運動和載荷，並對船舶水動力系數及運動中的一些非線性因素進行了初步的探討，本文的研究對船舶設計階段的耐波性能評估具有工程實用價值。 -
With the requirement of real - time embedded application, a series of memory management technology to improve safety and reliability for embedded system are proposed and implemented in the thesis, including memory leak detection and collection, memory redundancy allocation, memory redundancy encoding and memory protection, then the key technology of these is researched and implemented at first, a systematic survey of research in the domain of embedded real - time and memory management is given, including the concept of real - time embedded system, the research status and tendency of real - time embedded system, the characteristic of memory model and memory management in real - time embedded system
本文面向嵌入式實時應用需求，提出並實現了一系列有助於提高系統安全性和可靠性的內存管理技術解決方法，包括:基於slab的動態內存分配、回收、內存內存寫越界判斷技術，並對其實現技術展開較為深入的研究。本文首先介紹嵌入式實時系統和內存管理技術，包括嵌入式實時系統的概念，國內外的研究現狀和研究方向，嵌入式實時系統中內存模式和內存管理的特點，並在此基礎上提出本文的研究目標和研究內容。 -
At first, the concept of perfect reconstrution of input signal from the view of filter banks and wavelet transform are introduced, . and then the analysis / synthesis system is analyzed in time domain, third, the kalman filter is explained, finally, a multirate kalman synthesis filter and multirate kalman filterirng algorithm are intruduced to achieve optimal reconstruction of the input signal with the consideraion of the subband noises. simulation results show that the performance improvement of signal reconstruction in noisy filter bank system is remarkble
本文從濾波器組和子波變換兩個方面闡述了分析/綜合系統及其對輸入信號完全重構的概念；研究了考慮子帶噪聲條件下，基於濾波器組的多抽樣率分析/綜合成系統對輸入信號的最佳重構問題。實現了用多抽樣率卡爾曼綜合濾波器取代常規的綜合濾波器達到對輸入信號的最佳重構。 -
At the same time, scholars found some deficiencies of the object oriented framework, such as " excessive proliferation ", " fragile base class ", implicit architecture " and etc. combining the research practice in the national 863 project - " domain oriented application framework and component technology ", the author have done some deeper study on the concept, structure and development methods of framework while studying the software component. accordingly this paper put forward the idea of adopting the component - based framework, that is the developer can transfer the object oriented framework into the component - based framework through replacing overloading of method in component interface. the latter is more flexible and easier to be used than the former
本文結合作者在北京大學參加國家863項目「面向領域的應用框架和構件技術」的研究工作實踐，在對軟體構件進行研究的同時，對框架的概念、構造以及開發方法等相關問題進行了較為深入的研究，從而提出了採用基於構件的框架的思想，即將基於繼承的面向對象框架通過用構件介面中方法的調用來替代對象類中方法的重載，轉換成為基於構件組裝的框架，使得框架更加靈活，更加易於使用。 -
The basic principle of feedback crystal oscillator is analyzed. the basic concept of frequency stability is also introduced, following by the usual expression of phase noise in frequency domain and phase jitter in time domain. further, we describe the origin of crystal oscillator ' s phase noise and phase jitter, also list a variety of its contributors
然後從理論上分析了反饋型晶體振蕩器的基本工作原理，並闡述頻率穩定度的概念，給出了在頻域中相位噪聲和時域中相位抖動的表示方法，形成原因以及影響相位抖動的諸多因素。
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