No, it is quite impractical to build a GPS receiver. If you ever get a chance to look inside one you see why. There is a *lot* of electronics required to do the complicated mathematical equations for getting a 'fix'.
Why not read up how a GPS works? its all on the net, just do a google to find it.
Klaus
ok sir
i leave that idea i have one GSP receiver but no serial port in it can u plz have any idea how can i use that recever for my final project plz relpy