Design of FPGA based Data Parser for Global Positioning System

摘要

In this paper, design of data parser based on Field Programmable Gate Array (FPGA) for Global Positioning System (GPS) is presented. The FPGA system consists of Universal Asynchronous Receiver/Transmitter (UART) receiver, data parser, and UART transmitter. The data parser was designed using brute-force string matching algorithm. Simulation results show that GPS raw data of National Marine Electronics Association (NMEA) sentences were successfully parsed to $GPGGA sentence only. Finally, data of latitude, longitude, number of satellite, and altitude from $GPGGA sentence can be obtained and transmitted for further processing.