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- The Waveform and Spectrum of Input and Output Random Processes of A Linear Time Invariant System. 输入与输出线性非时变系统之随机电压其波形及频谱。
- The solvability conditions of the LQ inverse problem for the multivariable linear time invariant system is studied iwth the polynomial matrix method. 利用多项矩阵方法研究了多变量线性定常系统LQ逆问题的可解性条件，得到了一般情形下的LQ逆问题解的充要条件及其代数描述。
- Aiming at the linear time invariant system，a characteristic value was proposed and the prediction error of RUL was analyzed under some assumptions for system structure and hidden fault. 针对线性时不变系统构造了预测特征量，并分析了在一定的系统结构假设和故障假设下的剩余有效寿命预测误差。
- Basing on traditional operator theory,operator madel for a circuit is established,and a new method for the solution of response of linear time invariance system is introduced. 在传统的算子理论基础上，建立了电路的算子模型，提出了求解线性非时变系统全响应的一种新方法。
- stationary process: spectral decomposition of covariance function, spectral decomposition of stationary process, linear time invariant system, ergodic theorem, sampling theorem. 平稳过程：协方差函数的谱分解，平稳过程的谱分解，线性时不变系统，遍历定理，采样定理。
- linear time invariant system 线性时不变系统
- 4. stationary process: spectral decomposition of covariance function, spectral decomposition of stationary process, linear time invariant system, ergodic theorem, sampling theorem. 平稳过程：协方差函数的谱分解，平稳过程的谱分解，线性时不变系统，遍历定理，采样定理。
- The robust fault detection filter（RFDF） design problem for linear time invariant（LTI） system with unknown inputs is studied. 摘要 针对包含未知输入的线性时不变系统，研究了其鲁棒故障检测滤波器设计问题。
- A support hyperplane method is presented to find the response set defined for a linear time invariant vibration system under the excitations modeled by some convex sets. 对激励由凸集合建模的线性振动系统提出了响应集的概念，将数学上的微分包含问题简化为求解多自由度振动系统的响应集问题。
- time invariant system 时不变系统
- In view of the time varying property of a spiral bevel gear mill cutting system, a piecewise linear and time invariant modelling approach based on time series analysis is proposed in this paper. 为了提高弧齿锥齿轮加工精度和切齿效率,提出弧齿锥齿轮铣齿机切削系统的时序分时建模系统辨识方法。
- Fault Detection Filter Design for a Class of Linear Time invariable Systems 一类线性时不变系统的故障诊断滤波器的设计
- If reciprocity and symmetry exist for passive two port networks of linear time invariant under zero intial condition,the circuit parameters will have some important characters. 对于线性非时变的无源二端口网络，在零初始条件下，若存在互易性及对称性，则其电路参数具有一定的特殊性。
- Although quantization-based watermarking schemes achieve the channel capacity in terms of additive noise attacks, these schemes are not robust against linear time invariant filtering attacks. 基于量化的水印算法在有加性噪声攻击的情况下可以达到信道容量，然而对线性时不变滤波攻击没有鲁棒性。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- It has been proved that the OCT system behaves as a linear shift invariance system and can be described precisely by a coherent transfer function (CTF). 分析了该技术测量样品纵深结构时图像的形成机理，结果表明它相当于一复振幅线性平移不变系统，从而可用相干传递函数描述系统性能。
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
