基于DSP和FPGA的组合导航系统设计

Design of integrated navigation system based on DSP and FPGA

为满足组合导航系统数据计算量大、实时性高,对系统微型化、高精度的要求,设计了基于TI浮点数字信号处理器TMS320C6713B和CycloneⅡ系列EP2C20Q240C8FPGA的组合导航系统。DSP处理速度快,浮点数据处理能力强,主要完成导航数据处理任务;FPGA控制能力强,设计灵活,用作主控制器。详述了系统的硬件组成和工作原理,DSP与FPGA之间的数据交换通过双端口RAM实现。试验结果表明,该系统完全满足组合导航系统的要求。

A integrated navigation system was designed based on TI high-performance floating-point digital signal processor TMS320C6713B and Cyclone Ⅱ Series EP2C20Q240C8 FPGA in order to satisfy the requirements of dealing with a large quantity of data, real-time, and miniaturization. The DSP was used as computational processor and the FPGA was used as main controller, therefore, the system had fast and strong floating-point processing ability and strong control capability. The hardware structure and operating principle of the whole system were introduced in this paper, and dual-port RAM was used to exchange data between the DSP and the FPGA. The results show that the system can fully satisfy the requirements of integrated navigation system.