systems deviation

For a class of nonlinear time-varying repetitive systems with time delay 、 initial deviation 、 output error and condition disturbances, in arbitrary initial condition, the PD type closed-loop iterative learning tracking control problem which satisfies the global Lipschitz conditions is investigated.

针对一类存在初始偏差、输出误差和状态扰动的时滞非线性时变重复系统，在任意初值条件下，研究了系统满足全局Lipschitz条件下的PD型闭环迭代学习跟踪控制问题。

Systems based on OFDM are extremely sensitive to phase deviation caused by errors in synchronization. Inter-Carrier Interference ( ICI) caused by the carrier frequency deviation and sampling frequency deviation greatly deteriorate system performance.

基于OFDM技术的系统对于同步偏差所引起的相位偏移非常敏感，由载波频偏和采样频率偏差引起的子载波间干扰（Inter-carrier Interference：ICI）会严重恶化系统性能。

In digital signal transmission systems, orthogonally multiplexed QAM system ( OMQAM) is the most efficient transmission technique at present for non ideal channel, yet the problem is that this technique is quite sensitive to the timing and carrier phase deviation in the system.

在数字信号传输系统中，正交复用QAM（OMQAM）是目前最有效的一种抗信道失真传输技术，但它对系统的定时偏移和载波相位误差非常敏感。

Real Time Corrections for Target Deviation in Television Measurement Systems

电视跟踪测量系统中的脱靶量实时校正方法

The authors consider that the thermal deviation calculation method for pendant platens of superheaters and reheaters as proposed in the paper can be satisfactorily used fo diverse imported boilers of different configurations and systems. 11 figs and 4 tables.

文章最后认为，本所所提出的过热器和再热器同屏热偏差计算方法用于结构和系统不同的进口锅炉也能获得满意的结果。

Various deviation surveying, preventing and controlling systems used for continental scientific drilling and deep hole drilling in crystalline rock are collected and summed.

收集和总结了主要科学钻探项目和结晶岩深孔取心钻探项目采用的钻孔测斜、防斜和纠（造）斜系统。