| 1. | Time invariant channel
非时变信道 |
| 2. | Mutual information rate and analytic constraint in linear time invariant control systems
线性时不变控制系统中的互信息率和解析约束 |
| 3. | 3 . dt - tmm can be applied in the linear time invariant , time varying or nonlinear multibody system dynamic problems
3能综合分析计算线性时不变、时变、非线性多体系统动力学问题。 |
| 4. | The precise integration of time invariant system is proposed for the riccati equation of h optimal control , so that its parameter of induced norm - 2 can be computed up to the computer precision
在此基础上对时不变系统给出了精细积分法，可以求出几乎是计算机精度的最优参数2 。 |
| 5. | In this dissertation , a kind of linear time invariant systems with unmodeled dynamics and nonlinear uncertainties are considered by using backstepping approach and variable structure control algorithm . also another kind of linear time varying systems are studied based on the same method
本文主要利用backstepping方法与变结构控制方法，研究了有未建模动态及不确定非线性项的线性时不变系统，以及输入通道带有干扰的线性时变系统的控制器设计问题 |
| 6. | The current control approaches are based on frequency domain methods such as pid control which assumes linear time invariant system dynamics . the advantages of these approaches are simplicity and ease of stability and robustness analysis . however , the decrease in performanc e and poor efficiency translates to additional payload and cannot meet the demand of current spacecraft control
当前飞行器主要的控制方法是基于近似时不变线性系统的频域分析法(如pid控制) ，这种方法的优点是简单且易于稳定性和鲁棒性分析，但它所达到的低性能和低效率却转化成了飞行器控制过程的附加载荷，还远不够满足当前飞行器控制的要求。 |
| 7. | 2 . the time variant nonlinear model of the laser gyro inertial surveying and attitude reference system is changed and simplified to time invariant linear model of the error states using robust analysis method . these results make frequency analysis based on transfer function become possible which is important for dynamic system analysis
2 、采用鲁棒分析方法，将激光陀螺惯性测量与姿态参考系统的时变非线性模型转化为误差状态的近似线性定常模型，从而使基于传递函数的频域分析成为可能，这对动态系统分析是至关重要的。 |
