基于DSP和ARM的车载组合导航计算机设计  

Design of Vehicle Integrated Navigation Computer Based on DSP and ARM

作　　者：龚柏春[1] 李岁劳[1] 颜开思[1] 马戎[1] 

机构地区：[1]西北工业大学自动化学院,陕西西安710129

出　　处：《测控技术》2011年第7期101-104,共4页Measurement & Control Technology

摘　　要：为了满足项目中对导航系统的小型化、低成本以及高精度等要求,设计了基于DSP和ARM构成的车载双核嵌入式导航计算机系统。采用DSP作为导航解算计算机,完成导航数据的快速融合与解算处理;采用ARM处理器负责系统级的控制和部分数据的采集;采用CPLD完成其他导航数据经V/F后的采集、译码和控制以及时间对准。通过USB接口实现大容量数据存储,通过双口RAM实现双CPU通信。实验结果表明,该系统达到了预期的设计要求。To meet the requirements of integrated vehicle navigation system,an embedded navigation computer system based on DSP and ARM was designed.The system adopted DSP as navigation computer to complete rapid fusion and calculation of navigation data.ARM CPU completed the system-level control and the acquisition of GPS and image information etc.CPLD completed some decoding,control and the acquisition of other navigation data after V/F.Large amounts of data were stored through the USB interface of S3C2440A,DSP communicated with ARM via dual port RAM.Experimental results show that the system can meet the design requirements.

关 键 词：导航计算机 DSP ARM CPLD V/F 

分 类 号：U666.125[交通运输工程—船舶及航道工程]