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- We have mainly investigated the estimation and prediction of linearly time varying (LTV) channels of orthogonal frequency-division multiplexing (OFDM) systems. 主要开展基于OFDM的时变信道估计与预测研究,包括块内时变、块内慢变块间快变OFDM信道的估计与预测等问题。
- A torsional vibration model formulated by time varying mesh stiffness and composite gear errors was established to predict the dynamic characteristics of the encased differential gear train. 本文建立了封闭行星齿轮传动系统的扭振计算模型,模型中考虑了行星轮和星轮的啮合相位,行星架的弹性变形和负载惯性。
- Transform domain LMS adaptive filtering is widely used in time varying system. 摘要为了改善时变系统中的LMS算法收敛速度,一般可以在变换域进行自适应处理。
- The super-exponential iteration (SEI) blind equalization algorithm has the advantage of good tracking capability of the time varying channel. 超指数盲均衡算法的迭代算法收敛速度快,且便于跟踪时变信道。
- In this thesis, we consider the problem of acoustic echo cancelation for a time varying environment. 摘要:在本篇论文里,我们探讨在时变环境里声学迴音消除的问题。
- Albrecht A, Magueijo J. Time varying speed of light as a solution to cosmological puzzles. 爱因斯坦A.;七十岁生日时的心情
- To circumvent such limitations, an EMD and time varying VARMA model based method is proposed. 针对上述限定,提出了基于EMD和VARMA模型的信号处理方法。
- This paper develops a new VMI model with linear time varying demand and partial backlogging, which includes a single vendor and buyer and from raw material to final product. 摘要考虑订货商面临线性时变需求和仓库在出空期间出现短缺量部分拖后的情况,提出了一个从原材料到产成品包括单一供应商和订货商的供应商管理库存模型,并进行了最优解仿真寻优计算。
- Simulation results show that the proposed algorithm converges quickly and it is suitable for time varying scenarios in OFDM systems. 仿真结果表明该算法收敛速度较快,适合应用于信道随时间变化的OFDM通信系统中。
- Optimal control theory often dictates that nonlinear time varying control law be used, even if the basic system is linear and time-invariant. 即使系统是线性定常的,最优控制理论通常给出非线性时变控制律。
- The features of BTT control have determined that BTT missile is a strong coupling and time varying system, which is hard to design a control system. BTT控制技术的控制特点决定了BTT导弹成为一个强耦合的非线性时变系统,这为其控制系统设计增大了难度。
- Peter J.Clifford, Barrington, R.I., “Time varying gain amplifier for side scan sonar applications,” United States Patent 4198702, 1980. 林佳玮,“水下静态目标物之长期监测与工程稳定性分析”,国立中山大学海洋环境及工程研究所硕士论文,民92.;6。
- A low complexity joint channel estimative and decoding algorithm for STBC-OFDM systems in time varying or unknown channel is presented. 摘要提出一种针对空时块码正交频分复用(STBC-OFDM)系统在信道不确知或时变情况下的低复杂度联合信道估计与解码算法。
- The process of mold level control becomes very complicated because of the nonlinear characteristics of time varying and lag. 摘要结晶器液位控制系统中存在时变、滞后等非线性特性,使得它的控制变得特别复杂。
- The method suggested is applied to the parameters estimation of time varying long memory SV model of return series of China stock markets. 用该方法对中国股市收益进行了时变长记忆SV模型参数的估计。
- Meanwhile, it is seen that the nonlinear and time varying tyre model is useful for the simulation and analysis of braking performances of vehic. 采用作者建立的非线性时变轮胎模型,仿真分析了路面不平度幅值及路面空间频率变化对地面附着性能的影响。
- Based on the Markov chain, this paper investigates the time variant system reliability of brittle structure under multiple time varying loads. 对由脆性材料组成的结构,应用马尔可夫链分析了系统在时变载荷作用下的时变可靠性问题。
- This paper lays emphasis on the research of internal connection of various time varying parameter identification methods. 摘要本文重点研究了现有各种时变参数识别方法的内在联系及各自特点。
- With combination of the above subspace tracking algorithm with SVD-ESPRIT algorithm, an adaptive ESPRIT algorithm is presented to track the time varying DOAs. 将该跟踪算法与SVD -esprit算法相结合 ,得到的自适应esprit算法可用于对时变的信号DOA进行跟踪估计。
- If you impose a regular schedule, noting your feelings at the same time every day, you face the issue that mood varies predictably with time of day and regular cycles of activity. 如果你强行制定一个日程安排表来给你每天同一时刻的情绪做注释,你将会发现,情绪会随着预期时间的到来而发生有规律的循环变化。