Abstract: In this paper, a portable navigation system based on FPGA is designed, the receiving terminal is implemented in a CycloneⅡ EP2C35. Compared with former system, this system is shown that has many advantages by experiments, such as smaller size, shorter development cycle and lower cost of products, and can be upgrade easily. The navigation precise of the system has been improved by combining digital compass and GPS to navigate in the receiving terminal.

摘要： 设计一种基于FPGA的贴片式定位导航系统，实现了以Altera公司的CycloneⅡ EP2C35为核心的接收终端。试验样机表明，以FPGA为接收终端，采用软核处理器，减小了导航系统的体积，缩短了产品开发周期，产品升级方便，接收终端采用数字指南针＋GPS组合定位，提高了贴片式定位系统的定位精度。