Design and Implementation of GPS signal Generator using C/A code on FPGA

The Global Navigation Satellite System (GNSS) plays an important role in positioning and navigation applications. The Global Positioning Service (GPS) augmentation is to achieve more reliable and accurate navigation solutions. The presently available traditional GNSS receivers are hardware based receivers which are not flexible and cannot be easily upgraded to acquire the signals from other GNSS systems. The aim of this work is to implement and develop a platform that allows developing a GPS software receiver using available signal processing techniques. In this project I developed Coarse/Acquisition (C/A)) code generator of GPS receiver and implemented in SPARTAN-3 FPGA by using Xilinx ISE 13.4 and simulated in Modelsim 6.3f. Current ubiquity of Global Navigation Satellite Systems receivers forces the need of producing simulators which may be used for testing the performance of such receivers in various conditions. Hence here Attempt is made to design and Implement the GPS signal simulator using Software Defined Radio technique.