Windows NT环境下信息数据同步交换技术设计与实现

【作者】 王众；

【导师】 姜建方； 董士嘉；

【作者基本信息】 南京理工大学 ， 控制工程， 2003， 硕士

【摘要】 遥感卫星地面站主要由天馈线、伺服分系统、接收分系统、站控分系统、调制器、解调器、记录设备和快视设备等构成。它的主要功能是对轨道高度在×××公里～×××公里的各类遥感卫星进行实时捕获和跟踪，并记录卫星下传的各类遥感信息。作为地面站的一个核心功能之一—捕获并跟踪目标，涉及一个技术难点，这就是实时同步数据交换问题。所谓实时同步数据交换问题是指站控分系统、伺服分系统和接收分系统间传输的数据如引导数据、角度、角误差、信号电平，必须是处于同一时刻上的，这样才能准确的引导天线并捕获目标。设计方法是采用时统设备，各分系统在时统上升沿彼此对外传输本分系统的信息，并录取其它分系统送来的信息。本文论述了在站控分系统中利用专用驱动程序的方法，来解决本分系统实时同步数据交换问题。这种方法，不仅可以运用到站控分系统中，而且还可以运用到伺服分系统中。对于需要进行实时同步数据交换的其它类型系统如精密跟踪雷达，也同样适用。它的优点在于实时性高、可靠性好，能大大简化现有系统的结构复杂性。最后，本文给出了专用驱动程序开发工具和具体开发方法。更多还原

【Abstract】 The remote sensing satellite earth station is composed by antenna, feed subsystem , servo subsystem, receiver, station manage subsystem, modulator, demodulator, recorder and quick view equipment. The main founction is to track the remote sensing satellites and record the singal transmitted down by them. As the one of the earth station’ s key functions, searching and tracking the satellite involves the realtime synchronous data exchange, it is a high technology. It means the data transmitted among the servo subsystem, receiver, station manage subsystem, such as leading data, angle data, angle error data and the power of singal,must he transmitted or recorded at the same time. Only the data is transmitted or recorded at the same time can the earth station capture and track the satellite. Using time union equipment is a solution. All of the subsystems transmit data at the raising edge of the pulse produced by it. This paper gives a solution for the problem of realtime synchronous data exchange, it is the special device driver program.It not only can be used in station manage subsystem, but also in servo subsystem. Other system exchanging data real timely and synchronously such as the precision tracking radar also can use it.Its advantages are the high realtime, high credibility. This scheme can reduce the complexity of the system. Finally, This paper introduces the development kit and the development method.更多还原