In the paper, based on the study of a moving aircraft, some advanced technologies of imaging tracking in recent years are studied . a high efficient and real-time method of imaging tracking is deduced . further more, the specific design and implementation method is proposed 本文以运动的飞行器为目标,分析和研究了近年来国内外成像跟踪的前沿技术,提出并推导了一种高效的、实时的成像跟踪方法,并给出了具体的设计方案和实现方法。
The advantages and disadvantages of linux used in embedded real-time system are analyzed at first . then, the popular embedded linux kernel real-timing methods are compared . these work have provided a strong background for our future research 本文首先分析了linux应用于嵌入式实时系统的优势和不足,研究了现有各种可行的改造方法,并对各种现有主流嵌入式linux的实时化方案进行了分析比较,这些研究为后续的设计和开发工作提供了良好的基础。
Galileo strongly fought against the traditional ideas of the aristotle's theories, and he formed the thought of identity, continuance and dialectical materialism in course of his scientific research . he had written the book dialogue concerning the two chief world systems-ptolemaic and copernican to refute the theory that the earth was static, and push the copernicus " revolution forward by protecting and advocating the cosmic principle of copernicus; he get many scientific theories by making a thorough study of motion, so provided the materials need of which newton was; he applied the scientific method firstly in history of science which combined mathematical inference with experience and observation organically, and entrusted modern meaning to some old-time methods, so advanced the development of scientific knowledge greatly and began the history of modern physics 伽利略强烈反对亚里士多德式的传统思维观念,在长期深入的运动研究中发展了同一性和连续性思想,以及把物质性质划分为两类的机械唯物主义思想;他著书立说驳斥“地静说”,捍卫和宣扬“地动日心”的宇宙结构,推动了“哥白尼革命”;他深入研究运动,获得大量科学理论,为牛顿综合提供了丰富的材料;他在科学史上首次使用数学演绎与观察实验有机结合的科学方法,并赋予一些古老研究方法以现代含义,大大推进了科学认识的发展,开创了现代物理学历史。
The resonant box effect is the most important . in chapter five, we use the experimental setup constructed and the cavity decay time method to measure the total loss of a passive resonant cavity, and analyse the experimental data in very detail . we conclude that, in present experimental conditions it is the uniformity and stability of laser mirror to confine the precision and repeatability of experimental results 第五章在建立起了连续光波时间衰减法测量装置的基础上,进行了无源谐振腔总损耗的测量,仔细分析了实验过程中的误差因素,并指出在目前的实验条件下限制测量精度和重复性的主要原因是激光镜片的均匀性和稳定性不理想。
The thesis is one part of beijing scientific research subject which name is " economy forecast and decision-making methods study ", object of which is to provide a set of new time-frequency forecast methods based on wavelet theory and multiple dimensions thinking way which is not the same as the formerly time methods or frequency methods to help the enterprise administrator to do the multiple angle and high quantity forecast work 本文是北京市教委科研项目“经济预测及决策新方法研究”的一个组成部分,旨在为企业管理者提供一套以小波方法为理论基础的,多尺度方法为解决问题思路的系统的有别于以往预测分析仅停留在时域或频域分析层次上的新的时频预测方法,从而帮助企业管理者进行多角度的,高质量的预测工作。
With the characteristic time method, we also studied the condensation coefficients of water and argon in liquid-vapor equilibrium system . the simulated condensation coefficient decreases with the increase of temperature for both argon and water, and the condensation coefficient of water is larger than that of argon . though the polarity and the rotation are considered in the simulation of water, the difference between the condensation coefficients of water and argon is not remarkable 模拟获得的lennard-jones流体和水在平衡条件下的凝结系数表明:水和氩的凝结系数为温度的减函数;水的凝结系数略高于氩的凝结系数;虽然在水的模拟中考虑了分子的极性、旋转等因素,但模拟获得的水与氩的凝结系数之间的差距并不显著,具体原因仍有待于进一步的探讨。
Gps is a planet wireless conductance system which is global and all-weather, gps can offer high precision time orientation information to infinite user, clock precision reachs 10 ? 6 magnitude 。 not only changes traditional time method of quartz crystal clock, but also replaces wireless shortwave and even more lowfrequency signal and tv signal whose overlay range is limited and low precision, offers advantage to geology field task, achieve automatization and high precision of seismic flow observation 利用gps授时信号全方位、全天候、连续性、实时性和高精度的特点,以gps信号为基准来校准本地时钟(晶体振荡时钟或原子钟),将gps接收机输出信号的长期稳定度和恒温晶振的短期稳定度相结合,应用大规模可编程逻辑器件,设计和实现了由pc104控制的实时在线授时系统。
With md method, we studied evaporation and condensation process . by statistically analyzing the behavior of the colliding molecules with the interface, we presented a novel method, namely, the characteristic time method, to calculate the evaporation / condensation coefficient . in this method, the condensed then re-evaporated process is considered 对蒸发与凝结过程进行了分子动力学研究,提出了统计凝结系数的新方法--特征时间法,该方法通过统计获得有效区分反射过程和凝结再蒸发过程的特征时间,从而使求得的凝结系数近似程度更好。
Based on developing and research of the vi, the timing methods to adopting and controlling in vi are summarized . and the timing method with timer in main board is compared with one in the a / d board, at last the theory and the method to real-time adopting with dll are stated in this paper 本文在虚拟仪器开发和研制的基础上,总结出虚拟仪器采样和控制定时的方法和措施,并对利用主板定时器和a/d板上的定时器定时进行了比较和研究,最后阐述利用动态链接库(dll)实现实时数据采集的原理和方法。