高动态GPS卫星信号模拟器设计与实现

介绍了高动态GPS信号模拟器的设计原理和组成,阐述了设计中的关键技术,并给出了软件和硬件实现方案。其中软件部分采用V isual Basic 6.0和V isual C 完成,硬件信号处理板采用FPGA完成,通过高速的计算机并口实现了软硬件之间通信。此系统被成功的应用到了卫星导航定位系统的研发过程中,工作性能稳定,具有了模拟器的基本功能,为验证接收机的定位性能、信号跟踪和捕获性能等提供了一个逼真的高动态信号环境。

Design and Implementation of High Dynamic GPS Satellite Signal Simulator

The design principle and composing of high dynamic GPS signal simulator are introduced;the key technique of design is expounded;software and hardware implementation schemes are also provided.The software part is implemented by using Visual Basic 6.0 and Visual C++ platforms,and the hardware signal processing circuit board is completed by FPGA.The communication of software and hardware is realized via the high speed parallel ports.The simulator has been applied in the R&D process of the satellite navigation system successfully,and its current working performance is stable,and it possesses the fundamental function of a simulator.The simulator can provide a vivid high dynamic signal environment for the validations of orientation performance,signal track and capture performance of a receiver.