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在高动态GPS信号模拟器的使用中,需要根据用户的要求,设计出各种动态环境下接收机所接收到的GPS卫星信号的运动轨迹,为接收机的调试和测试提供真实环境下的数字信号源。由于需要经常修改和灵活设置各种参数,设计一个模拟器用户界面就显得十分必要。GPS卫星信号模拟器系统从整体上来说分为硬件平台和上位机软件两大部分,二者之间通过串口进行连接和通信。文中利用Visual C++实现了高动态GPS信号模拟器的上位机软件部分,把设计的界面主要模块的功能及设计实例,通过与Jubiter高动态接收机联调,用Matlab软件对自研模拟器和思博伦模拟器测试后的数据进行仿真,结果表明验证了软件设计的正确性和可行性。
In the use of high dynamic GPS signal simulator, we need to design the motion trajectory of GPS satellite signals received by the receiver in various dynamic environments according to the requirements of the user, and provide real-world digital numbers for the debugging and testing of the receiver signal source. Due to the need to constantly modify and flexibly set various parameters, it is necessary to design a simulator user interface. GPS satellite signal simulator system as a whole is divided into two parts of the hardware platform and PC software, the two through the serial port to connect and communicate. In this paper, using Visual C + + to achieve high dynamic GPS signal simulator host computer software part of the design of the main interface module functions and design examples through the Jubiter high dynamic receiver coupled with Matlab software on the self-study simulators and thinking Boren simulator test data simulation, the results show that the software design to verify the correctness and feasibility.