| 1. | Simulation analysis of error characteristic of inhomogeneous coatings prepared by linear co - evaporation
线性共蒸法制备非均匀膜的误差特性模拟分析 |
| 2. | 3 . error characteristics of the strapdown inertial navigation are investigated using dual quaternion
3 .运用对偶四元数代数研究了捷联式惯性导航的误差特性。 |
| 3. | Accurate and durable locating points and part holding features to attain maximum repeatability and reproducibility error
准确和耐久的定位点和部份需要可以获得最大的重复性和再现性误差特性。 |
| 4. | ( 4 ) the nonlinear error feature of unidirectional pendulum and two - way columnar single pendulum in vertical pendulum tiltmeter swinging has been analyzed and derived
( 4 )分析并推导出垂直摆倾斜仪中单向摆体摆动和双向圆柱形单摆体摆动时的非线性误差特性。 |
| 5. | Lastly , the dissertation makes a rough comparison between all autofocusing algorithms and points out that the performance of autofocusing is dependent on particular scenes and the characteristics of phase errors
最后，对各种方法进行了比较，指出自聚焦的性能依赖于具体的成像场景及相位误差特性。 |
| 6. | The position errors are measured by two dimension single - frequency laser interferometer , the pitch and yaw errors are tested using phase shifting interferometer with a resolution of 0 . 1nm , the linearity along motion axis is investigated by autocollimator with 0 . 01 " uncertainty
利用单频激光干涉仪测试其运动定位误差特性，相位偏移干涉法测试运动转角误差，光电自准仪测试其运动偏摆误差。 |
| 7. | In the thesis , we introduce the generation and characteristic of the unknown amplitude and phase errors of the responses of the antenna array , and the wcdma signal model for an antenna array is described on the basis of 3rd generation partnership project ( 3gpp )
本论文分析了天线阵列误差的产生原因及误差特性，并结合wcdma第三代移动通信协议规范（ 3gpp ） ，对存在天线阵列误差的wcdma信号进行建模。 |
| 8. | Abstract : the attitude error performance of electrostatic gyro should be understood and the relevant error equations must be set up in order to ensure the navigation precision of esgm . the relation between the navigation errors and the attitude errors of gyro was derived by use of spherical triangle . the simulation results show that the temporal performances of the longitudinal and distance errors which come from the initial alignment errors are periodically variational . they also show that the longitudinal and distance errors resulted from gyro drifts are not convergent in time . thus , the effects of initial alignment errors and gyro drifts can not be neglected and must be estimated and compensated
文摘:为了保证静电监控器的导航定位精度，需要了解静电陀螺的姿态误差特性，建立相应的误差方程.本文采用球面三角形原理推导了导航定位误差与陀螺姿态误差的关系式.仿真结果表明，由初始定向误差引起的经度误差和距离误差的时间特性是周期变化的；由陀螺漂移引起的经度误差和距离误差是随时间发散的.因此，初始定向误差和陀螺漂移的影响不能忽略，必须对其进行估计和补偿 |
| 9. | Study on strapdown inertial navigation system ( sins ) the concept , process and the already done work of initial alignment of sins arc introduced briefly . for selecting coordinate and deriving the error model , presenting some kinds of coordinate in the inertial navigation system ( ins ) ; the initial alignment of sins theory is introduced in detail ; the linear error model of moving base initial alignment of sins is derived , including analysis in characteristic and influence of system error of inertial apparatus .
捷联惯导系统的研究：首先概要介绍了惯导系统的相关知识，阐述了捷联惯导系统的优点；分析了初始对准姿态确定的几种坐标系，为建模定义了坐标系选择和姿态矩阵；详细研究了捷联惯导系统的初始对准原理，推导并给出了捷联惯导系统动基座初始对准的误差方程，并分析了误差特性以及惯性仪表误差对系统误差的影响； |
| 10. | Frequency response , quantization noise , reconstruction error and its sensitivity to mismatch among adcs are studied at length in prqmf banks adc system , and the theoretic results include : ( 1 ) the distortion / aliasing functions of hybrid filter banks adc system is similar with that of switch capacitor filter banks adc system ; ( 2 ) for wide or narrow band input signal , the effective resolution of the two adc systems is 0 . 51og2m bits higher than their adc ; ( 3 ) reconstruction error ' s sensitivity to mismatch among adcs of the two adc systems is reduced effectively than time interleaved adc system
2对prqmf滤波器组adc系统的频响、量化噪声特性、重建误差特性以及重建误差对adc间的失配敏感性进行了理论分析研究，所得到的理论结果为： ( 1 )混合滤波器组adc系统与开关电容滤波器组adc系统的失真/混迭函数一致； ( 2 )无论输入宽带还是窄带信号，这两种adc系统的有效分辨率均比其adc提高了0 . 5log _ 2m比特； ( 3 )这两种adc系统的重建误差对其adc间的失配敏感性均明显低于时间交织adc系统。 |
