Thispaperwilldiscussthedesignandimplementationofaninertialnavigationsystem(INS)usinganinertialmeasurementunit(IMU)andGPS.TheINSiscapableofprovidingcontinuousestimatesofavehicle’spositionandorientation.TypicallyIMU’sareveryexpensivesensors,howeverthisINSwillusea“lowcost”versioncostin