nice project here i am sending you some of the links for GPS which might help you out
what is GPS? basics of GPS…
http://www.engineersgarage.com/articles/global-positioning-system-gps
GPS interfacing with micro controller to find it latitude and longitude (position)…
http://www.engineersgarage.com/embedded/avr-microcontroller-projects/gps-interface-circuit
all the best…