A Novel Polarization Angle Sensor and Error Compensation Algorithm for Navigation 新型仿生偏振测角传感器及角度误差补偿算法
The results show that measurement errors of degree of polarization change with polarization state of incident light while keeping angular error of Wollaston prism fixed. 结果表明,在角度误差一定的前提下,偏振度测量误差随入射光偏振态的变化而变化;
Abstract: The measurement method of the polarization grade for the source and depolarization and the concept of the polarization error for the illuminance meter are described. 文摘:介绍了光源偏振度的测量和消偏振的方法以及照度计偏振误差的概念。
Research on PMD mitigation by fast polarization scrambling and forward error correction FEC结合快速偏振扰动降低PMD的研究
The polarization grade of three lamps for the laboratory and the polarization error of two illuminance meters are measured. 测量了实验室用的三支灯的偏振度及两台照度计的偏振误差。
Calculation of the optical path difference and fringe location in polarization interference imaging spectrometer Estimation of Rotor Zero-position Error for PMSM 偏振干涉成像光谱仪中Wollaston棱镜光程差及条纹定位面的精确计算与分析
Frequency mixing errors caused by the two factors existing at same time, which are elliptic polarization of laser source and installation azimuthal error of Wollaston prism, were analyzed especially in common path heterodyne interferometer. 着重分析了在共光路外差干涉仪中由激光光源的椭圆偏振化和沃拉斯顿棱镜的安装方位角误差同时存在的情况下,引起的频率混叠综合误差的大小及变化规律。
We describe an experimental demonstration of quantum public key distribution using a simple single photon polarization method with four light-emitting diodes as photon sources. The error rate before correction is 6%. 我们基于单光子偏振态的方案利用四个发光二级管作为光子源进行了传送量子公开密钥的原理性实验,得到的未经纠错的系统误码率为6%。
Investigation of the Influence of the System SNR on the Polarization Coupling Detection Error 信噪比对偏振耦合测试影响分析
Due to polarization mixing when polarizing beam splitters ( PBS) are employed in 4-channel quadrature detector system the extra error increases in the measurement. 当使用偏振分光镜的四通道信号接收系统时,由于偏振混合现象,在信号接收的过程中会增加额外的误差。
It also involves the relation between the demodulation and the polarization error. 最后,分析了偏振误差与解调之间的关系。
Using error signal offered by polarization spectroscopy can avoid error which produced by laser intensity swing. 误差信号由偏振光谱提供,可避免由稳频后因激光功率变化所导致的剩余误差。
Theoretical performance of the polarization estimator is analyzed for the case of polarization vector estimation based on the dual-channel orthogonal polarization measurements. It is proved that the polarization estimation error obeys the Rayleigh distribution approximately. 在此模型基础上,针对基于正交极化双通道测量的信号极化矢量估计算法,研究了极化估计器的理论性能,证明了极化估计误差近似服从瑞利分布。
The polarization parameter estimation method is given and the effect of the estimation error on the polarization filtering and angle measurement is analyzed. 给出干扰极化估值方法,分析了估值误差对滤波和测角的影响。
The theoretical error of linear polarization technique caused by estimating Tafel constant is eliminated efficiently. And the measuring error brought by the IR drop of the medium resistance is eliminated further. 有效地解决了线性极化技术因估算塔菲尔系数所带来的理论误差,进一步消除了因介质电阻IR降的影响产生的测量误差。
The critical problem in measuring rainfall rate and distinguishing the phase of hydrometeors by dual linear polarization radar is the data accuracy, and the microwave attenuation is very important to measuring error. 利用C-波段双线偏振雷达定量测量降雨及识别粒子相态的关键是数据的精度,而雨区对雷达波的衰减是造成探测误差的重要因素。
Theoretic analyzing the errors which are caused by the imperfect of optical component in detail, using the method of polarization state evolution and Jones matrix, works out the corresponding error curves. 将琼斯矩阵法与偏振态演化法相结合,对光路器件的不完备性对系统输出的影响进行了详细理论计算,得出了相应的附加误差理论曲线。
The nonlinear error of frequency mixing in this measurement technology was analyzed and calculated, and it was pointed out that the elliptic polarization producing from Zeeman laser and the error of wave plate was the key issue. 着重分析并计算了非线性混频误差对测量精度的影响,其中塞曼激光和波片产生的光束椭偏化是关键因素。
The Technique of Removing Polarization Error in IFOG IFOG中的消除偏振误差的方法
A real-time polarization phase shifting method: error analysis 利用位相光栅的实时偏振相移方法的误差分析
According to the experiment method at present, two points static bow experiment was done for about one year, and anti-fatigue factor of the panda polarization maintaining optical fiber was calculated by mean square error. 根据目前的实验手段,进行了长达一年左右的两点静态弯曲实验,并采用均方差的方法计算出了该种保偏光纤的耐疲劳因子。
On the basis of former theoretical analysis, the variation of coupling ratio of PANDA polarization maintaining fiber coupler caused by alignment error, wavelength fluctuation, varied coupling length, changed birefringence are computed numerically. 在此基础上数值计算了保偏光纤对轴误差、波长波动、耦合长度变化、双折射变化对熊猫型保偏光纤耦合器分光比的影响。
So, it is important to compensate polarization error, that is polarization tracking, which is also one of key techniques in free-space quantum communication. 因此,需要对偏振误差进行补偿即偏振跟踪。偏振跟踪技术是空间量子通信的关键技术之一。
The electrode conductivity measurement is mainly applied in the hemodialysis machine. But the electrode polarization and capacitance effect lead to low precision and large error, at the same time the measuring circuit is too complex and influence the real time performance. 目前血液透析机上的透析液电导率主要采用电极电导率测量法,由于电极的极化效应和电容效应的影响测量精度不高、误差较大,同时测量的电路较复杂,影响了实时性。
Except for the influence of atmosphere and geomagnetic field, the instability of satellite in the system as well changes the polarization benchmark and generates polarization error. 由于大气湍流、地磁场的影响,再加上卫星姿态的不稳定,偏振基准会发生变化,产生偏振误差。