time-variant 中文意思是什麼
time-variant
解釋
時變的-
Then the characteristic and estimation approaches of two important time variant parameter ( tvp ) and state dependent parameter ( sdp ) models are presented and the efficiency of the dbm method is illustrated by three examples based on the analysis of duffing equations, lorenz equations and time - variant equation, in contrast with other methods
本文首先總結了dbm在常規黑箱辨識演算法中的基本框架和兩類重要模型?時變參數（ timevariantparameter ， tvp ）模型和狀態依存參數（ statedependentparameter ， sdp ）模型的特點及其估計演算法。 -
Then, time - variant load characteristic is decomposed and the tva load model structure is proposed to reduce the effects on the time - variation of the amplitudes of the load. finally, the group algorithm and hypothesis testing strategies are applied to solve the problem of the time - variation of the load components
進一步對負荷特性的時變性進行分解，提出了tva負荷模型結構以消除負荷幅值大小時變性的影響，最後，採用分組演算法和假設檢驗的工程應用策略，解決了負荷組成成分的時變性問題，從而最終從一定程度上解決了負荷的時變性問題。 -
Theoretical analysis and computer simulation studies show that performance comparable to that of electro - control active damping suspension systems can be achieved with the hydraulic network model which can self - adaptingly adjust the damping of suspension to realize the optimal control by virtue of response of vehicle. in chapter 5, the effects of time - variant factors in the new active damping suspension system on reduction are investigated
第五章研究了主動阻尼系統中的時變因數對減振系統的減振效果的影響（包括路況、車速、載重阻尼油的粘度系數隨油溫變化而引起的變化，油液的彈性模量等） ，並分析了模型簡化時一些被忽略的非線性因數對系統性能的影響。 -
The dissertation proposes originally the idea of decomposing the time - variant load to solve this problem. first, the time - variant load is decomposed into the time - variant load characteristic and the time - variant load model due to the modeling method. second, the multi - curve approximation method is proposed to identify the load parameters, which to a great extent, reduces the effects on the time - variation of the load model from modeling method
針對負荷的時變性，論文首次提出了將負荷時變性分解的思想，首先將負荷的時變性分解為負荷特性的時變性和由建模方法引起的負荷模型的時變性，然後提出了多曲線擬合參數辨識方法，很大程度上消除了建模方法引起的負荷模型的時變性。 -
Abstract : the ever increasing number and power of polluting loads ( non - linear, time - variant loads and so on ) connected to the electric power network cause a significant distortion in the line voltage and line current
文摘:電力系統電網中逐漸增多的「污染性」負荷（如非線性負荷、時變負荷等）正在使電網中的電流、電壓出現越來越多的、顯著的畸變。 -
However, the artificial methods for tuning pid parameters are so far applied commonly regardless of in the domestic or overseas process control engineering practice, which cause the pid tuning job extremely time - consuming and can not assure of the best control system performances consequently, particularly for these time variant processes
然而，至今控制系統的pid參數整定工作無論是在國內還是在國外的控制工程實踐中，主要採用的還是人工整定法。這使得pid參數的整定工作不僅費時，而且難以保證控制系統性能最佳，尤其是對于被控對象特性隨工況發生變化的系統， pid參數人工整定法更不能滿足系統的要求。 -
The innovations consist of : synthetically restraining the filter ' s divergence, as effectively improved the filter ' s numerical stability ; a parallel filter structure is creatively designed to eliminate system biases ; and sprt method is used to control the adjustment of the noise statistics, so as to ameliorate the tracking performance of time - variant noises
對常規的次優遞推sage自適應濾波器進行了改造，包括：對濾波結果發散進行綜合抑制，提高了濾波器的數值穩定性；採用并行結構，消除了結果偏差；應用sprt控制調整，增強了濾波器的動態跟蹤能力。 -
Abstract : the time - variant reliability analysis of ship hull girders subjected to the deg r adations of fatigue and corrosion is quantitatively carried out in this paper. th e analytical formulations are derived and simple program is compiled. as a case s tudy, the time - variant reliability of a vlcc tank is calculated. it shows that th e degradation effects of fatigue and corrosion are very important for the load - c a pacity calculation of thsip hull girders. after the second special inspection ( 10 years ), the detailed inspection should be done in order to guarantee the safety of ship navigation
文摘:定量考慮船體構件疲勞裂紋擴展和環境腐蝕對船體梁承載能力的雙重衰減因素的影響，對船體梁的時變可靠性進行了分析，列出了時變可靠性分析公式並編制了相應的計算程序.以一艘大型油船的結構可靠性為例，表明疲勞裂紋和環境腐蝕在第二個特檢年（ 10a ）之後對船體梁承載能力有顯著的影響，此時開展詳細的船體結構檢查對保證船舶營運的安全性具有重要的意義 -
Then describe three aspects of the key techniques of using linux as the development tools of embedded system including the real - time variant of linux ? ? rt linux and it ' s principle, implementation and the programming ; the network coding in linux kernel and the analysis of linux network device drivers and the online debug environment of linux kernel and rtlinux kernel. i have also involved the implementation of embed linux / rtlinux in a floppy to simulate the embedded environment. in the last part of this thesis, i give the suggestions and prospect of the development of a mature embedded system which have the most competition ability in china market base on the current work
緊接著，分兩個方面論述使用linux進行嵌入式系統開發的便利，包括linux的實時變種? ? rtlinux的原理、實現方案和編程方法，並且編程實現了一個計算實時任務調度時間的軟體； linux網路設備驅動程序的分析和利用到嵌入式系統中的方案；然後，以作者在黑龍江傲立信息有限公司課外實習期間的實際工作經歷，介紹了基於lineo公司的ucsimm開發評估板進行嵌入式設備開發的一般過程。 -
Interference cancellation for frequency domain equalization systems in time - variant channels
未來無線通信中的單載波頻域均衡技術 -
Focused on the sine model of the speech signal creation, and finished the reconstruction by using it. at the same time, based on the knowledge of digital signal processing, reconstruction by harmonic correction and time variant digital filter was proposed
分析了語音信號產生的正弦模型，並在此基礎上完成了骨導信號的語音重構；與此同時，結合數字信號處理知識，分別用諧波修正和時變數字濾波器的方法，完成基於骨導信號的語音重構。 -
The simulation results show that two algorithms can efficiently estimate channel parameters, but the late method has better performance than the former when channel is time - variant. finally, there are conclusion and prospect
模擬結果表明，兩種通道估計方法都能夠有效估計通道參數，而無訓練比特的迭代通道估計方法在跟蹤通道參數變化方面的性能更優越。 -
Data warehouse is storage of subject - oriented, integrated, non - volatile and time - variant data, with the purpose to support managers " decision - making
數據倉庫是面向主題的、集成的、穩定的、隨時間變化的數據集合，旨在支持管理者決策。 -
A data warehouse is a subject oriented, integrated, non - volatile, and time variant collection of data in support of management ' s decisions
數據倉庫是（ datawarehouse ）一個面向主題的、集成的、時變的和非易失的數據集合，支持管理部門的決策過程。 -
On the basis of spot sample and laboratory experiment, authors studied the time - variant probability model early age period mechanical properties of high - strength concrete
通過現場試驗建立了高強度混凝土早齡期力學性能的經時概率模型。 -
A time - variant reliability formulation is presented in this paper to account for the effects of fatigue, corrosion and maintenance actions on the first yield reliability of midship section modulus. a probabilistic model for long - term distribution of wave - induced fatigue stress range is established. for the purpose of obtaining the performance of structure that stands random fatigue load, the concept of stress parameter and equivalent stress range are introduced
船舶在由波浪彎矩引起的交變應力作用下，船體構件焊接點處的微小裂紋逐漸擴展；同時，隨著船齡的增加，眾多結構構件遭受腐蝕的作用；從而使船體梁剖面模數減小，船體梁承載能力衰減，船舶結構的安全性將受到相當大的影響。 -
Usually the system is time - variant nonlinear system, and can automatically match with ( i. e. " adaptation " ) variational environment
通常這類系統是時變的非線性系統，可以自動適應（即「自適應」 ）信號傳輸變化的環境和要求。 -
Generally, the parameters of ship maneuvering motion are subjected to vary with ship running status and circumstances. therefore, ship maneuvering motion is time - variant, non - linear and noise disturbing process
在實際的船舶航行過程中，船舶的各種操縱運動參數總是隨著船舶的運行狀態和航行環境的變化而發生變化，船舶操縱運動是一個時變、非線性和有干擾的過程。 -
Time - variant reliability analysis of ship hull girders subjected to fatigue and corrosion
考慮疲勞與腐蝕影響的船體梁時變可靠性分析 -
The simulation results based on siso and mimo systems show that the proposed scheme could effectively eliminate the time - variant fading characteristics of wireless channel and under an acceptable demand of ber, the frequency efficiency is enhanced greatly and besides, dynamic encoding is implemented with low complexity and high efficiency
通過在單天線和多天線系統中的模擬，表明該方案可以有效的克服無線通道的時變衰落特性，在滿足誤碼率性能要求的基礎上可以提高系統頻譜利用率，且實現復雜度低。
分享友人