基于DSP和FPGA的导航计算机设计

介绍了一种基于数字信号处理器(DSP)和现场可编程门阵列(FPGA)的导航计算机设计,其中DSP专注于导航解算,FP-GA负责微惯性测量单元(IMU)和全球定位系统(GPS)等数据的采集,缓存以及与其它模块的通信。利用FPGA的可重复编程配置和高速并行处理能力,扩展了多路串行通信接口,并在其内部采用异步FIFO存储结构解决了采样信号和DSP之间的跨时钟域传输的问题。系统试验结果说明该导航计算机具有集成度高,功耗低,工作性能可靠的特点。

Design of navigation computer based on DSP & FPGA

The paper presents a design of navigation computer based on DSP & FPGA.In the system,the navigation algorithm was executed in the DSP,and the data of IMU and GPS was received and buffered by the FPGA which was also in charge of the communication with other module.The FPGA,which can be programmed flexibly and process data in parallel,was used in the design of expanding asynchronous communication serial ports.The transmitting data among independent clocks was realized by the asynchronous FIFO in FPGA.The experiments prove that the system has the characteristics of high integration,low power and stable performance.