查询词典 absolute error

In the intersatellite coherent optical communication, the vibration of a satellite will lead to a pointing error of transmitting and receiving antennas, which will decrease the signal-to-noise ratio and increase the bit error rate. In this paper, the Rayleigh distribution is taken as the pointing error model caused by satellite vibration, and PSK homodyne communication scheme is used as an example to analyze the influence of the satellite vibration on the system instantaneous BER and average BER. The simulation calculation result of BER is given.

针对星间相干激光通信中卫星平台的振动造成发射天线和接收天线的瞄准角误差，使系统信号信噪比下降，误码率增加，该文以瑞利分布作为振动造成的瞄准角误差模型，结合高斯本振光和艾里信号光外差检测模型，以PSK零差通信体制为例分析卫星振动对系统的瞬时误码率和平均误码率的影响，给出误码率仿真计算结果。

The adaptive compensation term of the optimal approximation error and a new robust term are adopted to minify the influence of modeling error and parameter estimation error.

该方案通过引入最优逼近误差的自适应补偿项和新的鲁棒项，削减建模误差和参数估计误差的影响，从而在稳定性分析中取消了要求逼近误差平方可积或逼近误差的上确界已知的条件。

As the result of theoretical analysis and practical test, the systematic error corrections of the second-order level measurement must include collimation error correction, refraction error correction and orthometric correction (altitude over more than 50 m in the examining area).

经理论分析与实际测试后发现二等水准测量须做视准轴误差、折射误差与正高改正（测区标高超过50公尺以上），而二等水准测量，则须加人视准轴误差，测区标高超过100公尺以上，亦需加人正高改正。

Differing from the feed-back error compensation method, the selflearning error pre-compensation method offered by the paper is based on both ANN and time series technique to obtain the error pre-compensating curve using the non-linear ANN pre-compensation model. Because of the self-learning character of the ANN, this new type of precompensation model can be self-adjusted.

与常规的反馈补偿方法不同，本文提出的自学习误差预测补偿方法，将时间序列预测与神经网络的自学习自适应优化建模技术相结合，利用神经网络非线性预测模型产生误差预补偿函数，并利用神经网络的自学习特性对所建预测模型进行修正，所以这种新型的误差补偿方法能够获得更高的误差补偿精度和控制速度，简单实用，适于推广，具有生产应用价值。

The predictive coding is based on the relativity between the neighboring pixels. On the coutrary, steganograph will destroy the relativity between the neighboring pixels. Through computing and analysing the predictive error of cover image and steg image, it is obtained that steganograph will increase the predictive error. So the predictive error can be used to detect steganograph.

该算法的基本思想是利用空域隐写会破坏图像相邻像素之间的相关性，而预测编码是利用图像相邻像素之间的相关性来预测的，这样隐写后图像的预测误差将会大于载体图像的预则误差，通过计算隐写前后图像的预测误差来分析图像中是否含有秘密信息。

This paper discusses some application cases of the error propagation law by the examples of trigonometrical survey, and presents that not only sum function and numeral multipling function in which there is only one independent observed value but also more complex functions which are equal in mathematics are not opposite in the process of error propagation according to the error propagation law.

1引言本文以三角测量为例，对误差传播定律一些应用问题进行了讨论，指出当只有一个独立的观测值时，和函数与倍数函数运用误差传播定律不会出现悖论；如果在测量工作中有多余的直接观测值，就需用平差后的间接观测值按协方差传播律来计算，这样数学中相等的函数关系才能得到同样的函

In this paper,the position accuracy improving method of the opening CNC system based on PMAC is analyzed,the servo-control algorithm which involves PID,velocity/acceleration feed forward control and notch filter and the error compensation function provided by PMAC is discussed,the pitch error compensation and the clearance error compens.

文章分析了在基于 PMAC 的开放式数控系统中提高定位精度的具体方法，对 PMAC 所提供的&PID+速度/加速度前馈+陷波滤波器&的伺服控制算法和误差补偿功能进行了阐述，将螺距误差补偿和间隙误差补偿应用于航空航天领域某型测控系统的系统误差补偿中，取得了良好效果。

The "bail" function is called whenever a database connection error is encountered, and does what it's name said - bails out the error and displays an error message instead to notify the users.

&保释&功能是所谓每当一个数据库连接错误是遇到的，和做什么，它的名字所说的话-b ails出错误，并显示错误讯息，而是要通知用户。

This research remodels Reason's (1997, 2000) human error cheese model into the Interpreting Error Model which displays the mode of error occurrence in a simultaneous conference interpreting event.

这些上游因素来自会议筹办单位及讲者的缺失，然而，会议筹办单位、讲者和口译员都可以启动必须的防护机制，共同避免错误发生，以维持口译员的专业表现。

In the first, Derek Jeter reached on a grounder that scooted under shortstop Yuniesky Betancourt's glove for an error. He was plated by singles by Bobby Abreu and Hideki Matsui. In the second, Morgan Ensberg led off with a hard shot that ate up Adrian Beltre at third base, also ruled an error. Ensberg was subsequently nailed at second base when Jose Monlia struck out on a hit-and-run, but second baseman Jose Lopez had the ball squirt out of his glove as he made the tag for the Mariners' third error.

第一局，队长打出一只从游击手Betancourt身旁溜走的滚地球，在阿伯跟松井安打的帮忙下回到本垒得分，第二局，恩斯伯格以一只三垒方向吃掉贝尔崔的强劲平飞球，当摸你那在打带跑的情况下挥空三振时，恩斯伯格随后跑上二垒被二垒手Lopez刺杀，但Lopez手套要碰到恩斯伯格时，球却从手套当中漏掉，导致水手的第三次失误。

The dissecting of samples in group2 were difficult. The root of pulmonary artery and ascending aorta failed to be unfolded because fibrous tissue was tough, right and left fibrous trigone were too firm to be solved by hand. Cardiac muscle fibers couldn't be stripped along myofibrillar trajectory since they were prone to break because of their friability.

组2的心脏解剖困难，表现为纤维组织坚韧，游离肺动脉非常困难；徒手无法松解左、右纤维三角，肺动脉和主动脉根部的游离非常困难；心肌纤维坚硬、质脆，解剖时容易断离成碎块，无法沿纤维走行方向剥离。

We have battled against the odds in a province that has become increasingly violent.

我们对在一个争夺日益激烈省的可能性。