查询词典 tracking ball

With the demand of quick respond and precision for missile flight in terminal guidance, an adaptive nonlinear controller is designed that guarantees tracking performance when the uncertain parameters vary within stability bound. In order to achieve asymptotic tracking, adaptation is introduced to enhance closed-loop robustness, while mach number and mass changes with 35%.

文中根据导弹响应快和精度高的基本要求，在导弹变向跟踪接近目标时，对导弹制导控制过程中的控制方法进行研究和数学推导，提出了一种导弹末制导的自适应控制方法，该方法提高了导弹马赫数和质量在较大范围（35%）内变化时系统的响应精度和稳定性。

The desired signal in the auxiliary antennas may cause angle measurement error by using adaptive sidelobe cancellation in tracking radar. If not effectively encountered, it prevents successful radar target tracking.

跟踪雷达应用自适应旁瓣对消时辅助天线中的期望信号会引起测角误差，若不采取应对措施，雷达无法对目标进行有效跟踪。

The experimental simulation results show that the average tracking error of the proposed algorithm is reduced by 50% as compared with that of single target tracking method.

实验仿真结果表明，与单一的目标跟踪算法相比，本文算法的平均跟踪误差减小了一倍以上。

Combined with the Foundation Research (Avigation science fund 04D52032)"study on CFAR detecting expert system base on clutter tracking".This paper study the fractal technic and snake algorithm on the application of clutter tracking.

本课题结合航空科学基金"基于杂波跟踪融合的恒虚警检测专家系统研究"，研究分形技术和snake算法在杂波跟踪中应用，设计了相应的算法，通过分析真实数据和仿真数据验证了算法的有效性。

The paper is based on the practical application of certain armed helicopter's barbette tracking system, which has discussed the model of AC servo system, the testing and modeling of certain micro-machined velocity gyro. The article also studied the tracking quality in which the system has used the motor encoder and the velocity gyro as the velocity loop feedback respectively.

以某武装直升机炮塔随动系统实际应用为背景，讨论了交流伺服系统的数学模型、微机械速率陀螺的测试与建模；研究了分别以电机编码器和速率陀螺输出信号作为速度环反馈时，系统输出的跟踪特性。

This paper introduces different signal block modes and the method which was used to calculate tracking intervals between trains, and establishes simulation system for multi-train tracking. A case was designed for analysis.

介绍了城市轨道交通不同信号闭塞方式及其追踪列车间隔时间的计算方法，建立了多列车追踪运行的仿真系统，并进行了算例的设计。

Bosco Bug Tracking System - Bosco is a rewrite of the popular Bugzilla defect tracking software in PHP.

Bosco 是用PHP对流行的Bugzilla 错误跟踪系统进行的重写。

The major contents and achievements of the paper are concluded as follows:(1)This article presents a precise tracking design of onmi-directional M-mode cardiography system--a four-dimensional tracking model for heart deformation and an improved genetic algorithm for analyzing the model.

该方案克服国际上现有的超声心动图运动检测设备只能是固定坐标和固定方向线，得到的只能是"功能性运动"和"非功能性运动"的总运动，容易出现被检测的位置脱开方向线以及非功能性运动导致的运动"噪声"。

A method for distant detecting and high accuracy tracking of carrier rocket is suggested,and the ablity of laser range finder is analyzed on the basis of high accuracy tracking.

文中结合运载火箭的特点，提出了实现光学远距离探测和高精度跟踪瞄准的技术途径，并以高精度跟踪瞄准为基础，分析了激光测距机的远距离测量能力。

Moreover, in order to decrease system's tracking error, the change rate of input variable is taken as a control variable, this strategy is suitable for a class of tracking control systems in which the input changes rapidly.

文中所采用的将输入变量的变化率作为控制变量来降低系统跟踪误差的方法，适用于一类输入变化较快的跟踪控制系统。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？