系统误差

Monte Carlo simulation results show that the particle filter with threshold de-noising can effectively reduce the filter root mean square error and improve filter accuracy, and that in the corresponding linear and non-linear systems are reduced by 14% and 12% respectively.

在所采用的线性及非线性系统中，均方根误差均值分别降低了14%和12%。

This thesis compares these differences and focuses on AOCTs for AC. Based on the required performance, principles and methods for designing DAS are analyzed in detail, and error estimation of root-mean-square algorithm is also mentioned.

从理论上重点分析了交流数据采集系统的设计，从设计性能要求出发，详细介绍了设计的原则和方法，并对结果处理所使用的均方根算法误差进行了量化分析。

When the filter is worked under deep integrated mode, we used the Potteralgorithm of square root filter to avoid calculate disperse, which is conduced by the accumulate of round off error. So we enhanced the systems robustness.

3在深组合工作方式下，卡尔曼滤波采用了平方根滤波的Potter算法，以避免因舍入误差积累造成滤波器的计算发散，提高了组合系统的稳健性。

In the system, a finepositioning window signal generating circuit redundant, sample and hold circuit of positioning error signal using no traditional charge/discharge method but high-speed switches and operational amplifier integrators, and cross-zero detector with threshold for higher reliability, is originated by the author in this paper.

综合面伺服和扇区伺服的各自优点，设计完成了4000 TPI光刻伺服解调系统：在设计中，首创了带冗余的精定位窗口信号生成电路，采用高速模拟开关和运放积分电路代替传统的电容充放电法，以完成精定位位置误差信号的平均与采样保持，使用带阈值的过零检测电路提高过道脉冲的可靠性。

Considering the speed , power dissipation and specifications, A flip-around sample and hold circuit was designed to reduce the power consumption; S/H circuit is followed by eight 1.5-bit stages and a final 2-bit flash sub-ADC.

该流水线式ADC的采样保持电路采用Flip-around结构以减少功耗；前8级每级1.5位，最后一级为2位的并行flash ADC，并采用数字校正技术对级电路的误差进行校正，最终以达到10位的精度；为了达到系统低功耗的要求，该流水线ADC采用了运放共享技术和逐级缩小技术。

The experimental results are recorded and the sampling error is also analyzed in this paper.

本文还记述了系统测试结果，分析了采样误差。

The experimental results are recorded and the sampling error is also analyzed in thispaper.

本文还记述了系统测试结果，分析了采样误差。

The system controls a tunable fiber Fabry-Perot filter with sawtooth wave voltage and synchronous signal of its digital phase to interrogate FBG sensors in a single fiber. Meantime, a reference FBG and a digital thermometer provide an accurate reference wavelength, which is used to calibrate the wavelength readout of the TFFP in real-time by a digital signal processor.

解调系统利用锯齿波电压信号和数字相位同步信号控制可调谐光纤法布里珀罗滤波器，对光纤光栅传感器阵列进行扫描式寻址，同时采用非测量环境中的参考光栅和数字温度计提供精确的参考波长，并由高速数字信号处理器实时校准滤波器的波长读取值，很好地消除了滤波器调谐的温度漂移、非线性和蠕动性引起的测量误差。

On the base of the relativity and the data self-sealing characteristics of circular division measurement, an arbitrary measurement system on circular division and dihedral is built, and the processing method of the dynamic data zero average and the balancing based on self-sealing nature reference are also built.

在圆分度测量的相对性和数据自封闭特征的基础上，建立了基于圆分度和二面角测量的任意角测量系统，和基于自封闭自然基准的动态误差数据零均值处理和平差处理方法。

An experiment of 16 channels sequency division mult plex system has bsen completed by the RF earner channel for the transmission of telemetry signals.

本文介绍一个在一般遥测用射频信道上实现16路沃尔什复用系统的实验。沃尔什函数作为付载波经带限信道后其波形要产生上升、下降沿，这将导致各路间的正交误差。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。