Abstract: A hardware scheme of a multi-channel GPS signal simulator based on DSP and FPGA is proposed in this paper.The basic framework of hardware system is introduced compendiously，and the structure of software and the program flows based on the hardware are presented in detail.The feasibility of this scheme is verified finally.The results are suggested that this simulator with dynamic capability is programmable，flexible and verisimilar，which can provide strong support to the detection of the capability of the GPS receiver.

摘要： 立足于GPS卫星信号仿真技术，提出了基于DSP+FPGA的多通道GPS卫星信号仿真器硬件设计方案，概略介绍了硬件系统的基本架构，详细给出了基于此上的软件结构和程序流程，最后通过实验验证了该方案的可行性。实验结果表明，该方案设计的GPS仿真器信号逼真度高、可编程性强、使用灵活，并具有一定的动态性能，为GPS接收机的性能检测提供了有益的支持。