系统误差

The paper focus on the detailed structure of the optical system in helmet mounted electro optical sight scanning system,and makes analysis of the principle error caused by ten side prism reflector non direction fit axis rotation in measuring its head position,it further derives two formulas for base line correction and goniometry correction.

就某型光电头盔瞄准具扫描部件光学系统具体结构，分析研究了其头位测量中十棱镜反射面非共面定轴转动所致原理误差，导出了基线校正、测角校正两种校正公式。

The resolution of airborne vector gravimetry is analyzed according to the error spectrum and some conclusions useful for the flight are drawn.

根据误差的频谱特性，分析了航空矢量测量系统的分辨率，得出了一些对实测飞行有用的结论。

In this paper, the basic principle of the horizontal platform using ESG is shown, and the errors when the platform was used for the measurement of gravity are discussed in detail. The design of the control system is based on the precision required in gravimetry.

本文介绍了静电陀螺水平平合的工作原理；对于海洋重力测量进行了较详细的误差分杆；根据测量精度的要求，对控制系统进行了设计。

Therefore it is necessary to research the mechanism of greensand used for high compacted molding methods thoroughly.This subject is one section of the National Natural Science Foundation subject ""Ivestigation on Predicting Method and Mechanism of Springback for High Compacted Sand Molds"", followed of the other completed one named ""Research on Microdeformation of Molding Sand"". A serious of experiments has been done on the reequipped three axial machine under certain technological conditions, and the mechanics, material science, rheologic science. It is systematically studied that the influences on the springback of sand mold were caused by the main influence factors: pressure, compacted rate and the content of soil. Through the analyzed experiments' data, the experienced stress-strain relationship concerning the main influence factors were obtained;under different technical parameter, the springback and spingback's potential energy are compared, the differences and indifferences between them are found out, and the springback's mechanism is discussed;according to the tests' data of YangGuoping coming from Tinghua University, experienced formula of molding sand's springback displacement is induced, the displacement and springback are compared, the margin of error's reasons are analyzed, and they are tested and verified mutually.

本课题为国家自然科学基金项目"高紧实度砂型预测方法及回弹机理的探讨"的一部分，是已结题的国家自然科学基金项目"铸造型砂微变形的研究"的后继，运用力学、材料学及流变学理论，利用改装的三轴仪，在一定的工艺条件下，作了大量系列实验，系统的研究了压实比压、紧实率和膨润土含量对砂型回弹的影响；对实验数据进行了分析和处理，得出了型砂关于压实比压、紧实率和膨润土含量的本构关系的经验公式；把各工艺参数下的型砂产生的回弹量与回弹势能进行比较，找出两者存在的异同点，并对回弹机理进行了探讨；通过清华大学杨国平的实验数据，推导出型砂回弹位移场的经验公式，并与实验测出的回弹量进行比较，分析误差造成的原因，并互相进行了验证。

In this paper, asupport vector regression approach for recursive simultaneousdata reconciliation and gross error detection in nonlinear dynamicalsystems is proposed.

本文中，一种非线性动态系统中迭代的同步数据协调与显著误差检测的支持向量回归方法被提出。

The results show that TM image data has high internal geometric fidelity and negligible rotation and scale differences.

结果表明，系统纠正后的TM图像产品，内部几何精度相当好，有较小的旋转、比例误差。

This measuring system displays some remarkable merits, such as synthesis,automatization,intergration,continuity and on-line and is further able to improve the efficiency of testing,reliability and accuracy of testing data, results, solving the shortcomings of traditional test methods,such as scattered, low efficiency and high-test errors.

该系统具有综合、自动、集成、连续、在线的突出优点，大大提高测试效率、测试数据和结果的可靠性、准确性，解决了传统测试方法的分散、效率低和测试误差大的缺点。

In this paper, based on Delta Operator, signal vectors of Hilbert space are constructed, an input-output model is derived, and both the forward and backward prediction error vectors are described.

摘要本文基于δ算子构造了Hilbert空间中的信号向量，推导了系统的输入输出关系，得出了前向和后向预测误差向量的表达式。

It shoewd that nonlinear load injects hormonic power to system, and creates the negative error to energy metering.

实验结果表明，非线性负荷向电力系统注入谐波功率，并对电能计量装置产生负误差影响。

The goal is to simplify the neural-computing of biovision process modeled inthe Boundary Contour System of FACADE theory, and to extract subjective contour in.a new way. The procedure consists of DOG filtering, cooperative filtering,post-processing of cooperative cues and regrouping of endpoints, corresponding to theoriented edge filtering by simple cells, cooperative filtering by bipole cells and end-stopeffect formulated by hypercomplex cells in biovision system respectively. The last oneis an algorithm based on connection relation graph, which judges whether two keypoints should be connected according to their positions and orientations and thenconnect the key points that Should be connected to complete the subjective contour.

本文主要完成了以下工作：一是针对张量投票方法处理主观轮廓时出现的问题进行了改进，并依据矩阵的特征值摄动理论分析了该方法误差产生的原因以及迭代对其影响；二是用图像处理方法代替FACADE理论中复杂的细胞动力学方程，提出了一种基于视觉竞争合作机制的轮廓组织及缺口修复算法，该方法通过DOG滤波器组、合作滤波器组和张量投票等方法分别模拟视觉系统中的简单细胞有向滤波、双极细胞合作滤波和终端截断后端点重组等主观轮廓形成过程；三是提出了一种基于可连接关系图的算法解决轮廓组织及缺口修复问题，该方法在轮廓特征提取的基础上，根据关键点的位置和取向信息判断其可连接关系，进而连接具有可连接关系但没有实际连接的关键点，最终完成轮廓缺口的修复。

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。