Today, differential GPS techniques allow common GPS receivers to achieve the precision levels required for mapping purposes. The development of systems for mobile Internet access (mainly GPRS) provides a fast and reliable method for feeding differential corrections to a GPS receiver in any area covered by a cell telephone network. With the increase in the available bandwidth, and the example of...

The method for calculation of geodetic problem on earth ellipsoid surface is the basic premise realization high-precision marine delimitation technology. Based analysis construction principle existing solution method, algorithm direct solution(DGPS) based nested coefficient and Bessel’s inverse solution(IGPS), which are suitable various distance solutions, optimized. Then, experimental verifica...

Gyu-In Jee is an full Professor in the Department of Electronics Engineering at Konkuk University in Seoul, Korea. He received his Ph.D. in Systems Engineering from Case Western Reserve University. He has worked on several GPS related research projects; GPS receiver software design, GPS/INS integration for land vehicle, DGPS system development, GPS engine design using the Mitel chip sets, wirel...

The ORBEX coprocessor has been designed to execute the typical fuzzy operations of a system based on fuzzy rules. The first real application has been fuzzy controllers for electric cars. The values of the input variables, the position and the orientation of the car with respect the desired trajectory of reference, are obtained from the data provided by a DGPS boarded in the vehicle. The values ...