1、毕毕 业业 设设 计计 中中 文文 摘摘 要要 随着随着纳米技术、空间技术、自动控制技术电子技术、计算机技术、无线电通 讯技术等高新技术的迅猛发展,尤其是卫星技术的不断发展与成熟，以及卫星在通讯， 气象观测，重大灾害监测，进行定位导航等方面发挥的重大作用。系统采用数字稳定 的平台方案保证系统的稳定，采用 AT89C51 单片机作为主控单元，采用步进电机对系 统三轴进行实现控制，采用陀螺、数字罗盘、光电传感器和限位器作为信号的输入器 件，给单片机传输实时信号，采用已有的公式对俯仰角和方位角进行解算，采用程序 跟踪和步进跟踪的方法对卫星信号进行跟踪，采用智能分区 PID 控制方法对系统进行 实时伺
2、服稳定控制，对系统软件具体流程图进行设计，采用开发板进行局部的仿真。 本系统的特点是能在不同的情况下依靠硬件和软件算法，实现伺服稳定。 关键词关键词 地球站 卫星通信 自动控制系统 毕毕 业业 设设 计计 外外 文文 摘摘 要要 Title The design of antenna tracking system of satellite ground receiving station Abstract With the rapid development of nanotechnology, space technology, automatic control technology ,
3、electronic technology, computer technology, wireless communication technology and other high-tech,especially the satellite technology continues to evolve and mature, as well as satellite communications, meteorological observations, major disaster monitoring, positioning and navigation aspects of pla
4、y major role.System uses digital stable platform program to ensure system stability.Using AT89C51 microcontroller as the main control unit.Using stepper motors control triaxial system be achieved.Using gyroscope, digital compass, photoelectric sensors and limit as an signal input device, real-time s
5、ignal transmitted to the microcontroller.Using the existing formula for the pitch angle and azimuth solver.Using procedure Tracking and step tracing as the method of to tracking satellite signals.PID control with intelligent partitioning method for real-time servo stability control system.Specific f
6、low chart for system software design, development board using partial simulation.Characteristics of this system is able to rely on hardware and software algorithms in different case finish the servo stability. Keywords earth stations satellite communications automatic control system 本本 科科 毕毕 业业 设设 计计 第 页 共 页 目 录 1 绪论 1 1.1 本课题的背景意义 1 1.2 国内外的发展现状 2 1.3 未来的展望 3 1.4 本课题主要研究的内容
