time-variant中文是什么意思

• 时变的

• time    n. 1.时，时间，时日，岁月。 2.时候，时刻；期间； ...
• variant    adj. 1.相异的，不同的，不一致的。 2.各种各样的 ...
• time variant    反映历史变化; 时变
• linear time variant channel    线性时变信道
• linear time-variant channel    线性时变信道
• time variant channel    时变增益
• time variant deconvolution    时变反褶积
• time variant distortion    随时间变化的畸变
• time-in-variant channel    非时变信道
• time-variant control system    时变控制系统
• time-variant diapersion effect    时变波散效应
• time-variant dmo    时变倾角时差
• time-variant regriding    时变重组网格
• time-variant scale    时变比例
• time-variant seepage    时变渗流
• time－variant hydrologic model    时变水文模型
• variant    adj. 1.相异的，不同的，不一致的。 2.各种各样的。 3.易变的，不定的。 a variant reading (in some MSS.) (某抄本的)异文。 40 variant types of pigeons 鸽子的四十种变种。 n. 1.变体，变形；变量。 2.(字音的)转讹；(字的)异体。 3.【统计学】变式；【生物学】变种，变异体。
• variant text variant version    不同文本
• acceptable variant    可接受的变换
• antigenic variant    抗原变体
• assembly variant    不同的装配版本输出
• automatic variant    自主变体
• beer variant    啤酒种类
• biochemical variant    生化变种; 生物化学变异型
• biological variant    生物变异株

• Fh signals are time - variant and non - stationary signals , while time - frequency analysis is a powerful tool to analyze this kind of signals . so how to deal with fh signals using time - frequency analysis technique is a important aspect in the research fields of fh surveillance algorithms
  由于跳频信号的时变特性以及时频分析技术在分析时变非平稳信号方面的强大功能，因此，如何应用时频分析技术来处理跳频通信信号，是目前跳频信号侦收算法研究领域的一大方向。
• 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
  第五章研究了主动阻尼系统中的时变因数对减振系统的减振效果的影响(包括路况、车速、载重阻尼油的粘度系数随油温变化而引起的变化，油液的弹性模量等) ，并分析了模型简化时一些被忽略的非线性因数对系统性能的影响。
• 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:定量考虑船体构件疲劳裂纹扩展和环境腐蚀对船体梁承载能力的双重衰减因素的影响，对船体梁的时变可靠性进行了分析，列出了时变可靠性分析公式并编制了相应的计算程序.以一艘大型油船的结构可靠性为例，表明疲劳裂纹和环境腐蚀在第二个特检年( 10a )之后对船体梁承载能力有显著的影响，此时开展详细的船体结构检查对保证船舶营运的安全性具有重要的意义
• Moreover , on the basis of analyzing the dynamic time - variant characteristics of manufacturing errors and measuring errors and the influence of the measurement to the dimensional iv distribution of the work - pieces , a dynamic model ? shedlike model for the first time is initiated of the manufacturing dimension distribution of the work - pieces
  分析了机械加工系统的加工误差和测量误差分布的动态时变特性，建立了零件测量尺寸分布的数学模型；在分析了加工误差和测量误差动态时变特性及测量对零件尺寸分布影响的基础上，首次提出了零件加工尺寸分布的动态模型? ?棚状模型。
• 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
  针对负荷的时变性，论文首次提出了将负荷时变性分解的思想，首先将负荷的时变性分解为负荷特性的时变性和由建模方法引起的负荷模型的时变性，然后提出了多曲线拟合参数辨识方法，很大程度上消除了建模方法引起的负荷模型的时变性。
• 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
  进一步对负荷特性的时变性进行分解，提出了tva负荷模型结构以消除负荷幅值大小时变性的影响，最后，采用分组算法和假设检验的工程应用策略，解决了负荷组成成分的时变性问题，从而最终从一定程度上解决了负荷的时变性问题。
• With the development of modern control theory and technology , system identifications are expanding further and abroad . complicated systems , complicated measurement noise , and restricted conditions within wide limits are increasing interested in system identifications . non - gaussian , non - stationary , nonlinear and time - variant system problems have been increasing interested in system identifications
  随着现代控制理论和技术的不断发展，系统辨识向更深层次、更广泛的领域拓展，复杂系统、复杂噪声环境和宽约束条件的系统建模和辨识问题也受到广泛的关注。
• 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
  对常规的次优递推sage自适应滤波器进行了改造，包括：对滤波结果发散进行综合抑制，提高了滤波器的数值稳定性；采用并行结构，消除了结果偏差；应用sprt控制调整，增强了滤波器的动态跟踪能力。
• Furthermore , according to the dynamic time - variant characteristics of manufacturing errors , a concept of dynamic manufacturing ability index is initiated for the first time . and on this basis , according to the principles of mathematical statistics and quality control , the relations between the dynamic - error distribution of some different manufacturing dimensions and corresponding manufacturing quality are individually analyzed , the relevant mathematical model is set up , and a critical value criterion for waste appearance is advanced
  另外，根据加工误差动态时变的特性，首次提出了动态加工能力指数的概念，在此基础上，依据数理统计和质量控制的原理，分别研究了几种加工尺寸动态误差分布与制造质量的关系，建立了相应的数学模型，提出了废品开始出现的临界值判据。
• 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
  船舶在由波浪弯矩引起的交变应力作用下，船体构件焊接点处的微小裂纹逐渐扩展；同时，随着船龄的增加，众多结构构件遭受腐蚀的作用；从而使船体梁剖面模数减小，船体梁承载能力衰减，船舶结构的安全性将受到相当大的影响。