为提高太阳能的利用率，以ATmega8单片机为控制核心，设计了一套光电跟踪与视日运动轨迹跟踪互补控制的双轴太阳跟踪器。该跟踪器在晴天时，利用光敏电阻采集光强判断太阳位置,控制步进电机实现光电跟踪；在阴天时，采集时钟器件PCF8583的时间信息,计算当前太阳位置来实现视日运动轨迹跟踪。实验表明：该太阳跟踪器能在不同天气状况下对太阳进行较准确地跟踪，能量接收效率提高了30%，达到充分利用太阳能的目的。 Abstract: To improve the utilization rate of solar energy，a kind of solar TRACKING controller which effectively combined the sun angle TRACKING and photo electric TRACKING based on ATmega8is designed.In the sunny days，the solar TRACKING con-troller determines the sun's position by using photosensitive resistances to collect light intensity and control stepper motors to achieve photo electric TRACKING，n cloudy days，it collects clock chip PCF8583time information to calculate the current position of the sun and achieve the sun angle TRACKING.Experimental results show the solar TRACKING controller accurately tracks the sun in different weather conditions，improves received energy efficiency by30%and reaches the purpose of full use of solar energy.
上传时间： 2013-10-15
上传用户：urgdil
（Portmon is an application that lets you monitor serial and parallel activity on your local system, or any computer on the network that you can reach via TCP/IP. It is the most powerful tool available for TRACKING down port-related configuration problems and analyzing application port usage.）
上传时间： 2013-11-07
上传用户：1412904892
Abstract: There are many things to consider when designing a power supply for a field-programmablegate array (FPGA). These include (but are not limited to) the high number of voltage rails, and thediffering requirements for both sequencing/TRACKING and the voltage ripple limits. This application noteexplains these and other power-supply considerations that an engineer must think through whendesigning a power supply for an FPGA.
上传时间： 2013-11-10
上传用户：iswlkje
This simple simulation of a pulse traveling down a parallel-plate guide makes a handy test code for initial experiments with boundary conditions. ToyFDTD3 adds some simple features to ToyFDTD1: A PMC boundary condition, a sinusoidal pulse source, and output TRACKING a single point in the mesh. Released 15 June 1999.
标签： parallel-plate simulation traveling simple
上传时间： 2015-04-06
上传用户：stella2015
The cable compensation system is an experiment system that performs simulations of partial or microgravity environments on earth. It is a highly nonlinear and complex system.In this paper, a network based on the theory of the Fuzzy Cerebellum Model Articulation Controller(FCMAC) is proposed to control this cable compensation system. In FCMAC ,without appropriate learning rate, the control system based on FCMAC will become unstable or its convergence speed will become slow.In order to guarantee the convergence of TRACKING error, we present a new kind of optimization based on adaptive GA for selecting learning rate.Furthermore, this approach is evaluated and its performance is discussed.The simulation results shows that performance of the FCMAC based the proposed method is stable and more effective.
标签： system compensation simulations experiment
上传时间： 2015-08-26
上传用户：希酱大魔王
Knowledge of the process noise covariance matrix is essential for the application of Kalman filtering. However, it is usually a difficult task to obtain an explicit expression of for large time varying systems. This paper looks at an adaptive Kalman filter method for dynamic harmonic state estimation and harmonic injection TRACKING.
标签： application covariance Knowledge essential
上传时间： 2014-01-19
上传用户：litianchu
要学MFC必看之书，由Jeff Prosise编写。下面是作者前言： The production of this book required the efforts of many people, but two in particular deserve to be singled out for their diligent, sustained, and unselfish efforts. Sally Stickney, the book s principal editor, navigated me through that minefield called the English language and contributed greatly to the book s readability. Marc Young, whose talents as a technical editor are nothing short of amazing, was relentless in TRACKING down bugs, testing sample code, and verifying facts. Sally, Marc: This book is immeasurably better because of you. Thanks.
标签： MFC
上传时间： 2015-10-20
上传用户：waizhang
图像处理的关于Snakes : Active Contour Models算法和水平集以及GVF的几篇文章，文章列表为： [1]Snakes Active Contour Models.pdf [2]Multiscale Active Contours.pdf [3]Snakes, shapes, and gradient vector flow.pdf [4]Motion of level sets by mean curvature I.pdf [5]Spectral Stability of Local Deformations Spectral Stability of Local Deformations.pdf [6]An active contour model for object TRACKING using the previous contour.pdf [7]Volumetric Segmentation of Brain Images Using Parallel Genetic AlgorithmsI.pdf [8]Segmentation in echocardiographic sequences using shape-based snake model.pdf [9]Active Contours Without Edges.pdf 学习图像处理的人必看的几篇文章
标签： Contour Snakes Active Models
上传时间： 2014-01-15
上传用户：wqxstar
An unsatisfactory property of particle filters is that they may become inefficient when the observation noise is low. In this paper we consider a simple-to-implement particle filter, called ‘LIS-based particle filter’, whose aim is to overcome the above mentioned weakness. LIS-based particle filters sample the particles in a two-stage process that uses information of the most recent observation, too. Experiments with the standard bearings-only TRACKING problem indicate that the proposed new particle filter method is indeed a viable alternative to other methods.
标签： unsatisfactory inefficient property particle
上传时间： 2014-01-11
上传用户：大三三
The need for accurate monitoring and analysis of sequential data arises in many scientic, industrial and nancial problems. Although the Kalman lter is effective in the linear-Gaussian case, new methods of dealing with sequential data are required with non-standard models. Recently, there has been renewed interest in simulation-based techniques. The basic idea behind these techniques is that the current state of knowledge is encapsulated in a representative sample from the appropriate posterior distribution. As time goes on, the sample evolves and adapts recursively in accordance with newly acquired data. We give a critical review of recent developments, by reference to oil well monitoring, ion channel monitoring and TRACKING problems, and propose some alternative algorithms that avoid the weaknesses of the current methods.
标签： monitoring sequential industria accurate
上传时间： 2013-12-17
上传用户：familiarsmile
