GPS Buffering Algorithm

Rapid development of IT area leads to increasing use of the personal digital assistant (PDA). In these days, many PDA products equipped with GPS receiver for PNS (personal navigation system) are on the market. Furthermore many robots would be equipped GPS receiver to navigate by itself in recent future. A common feature of PNS and robot navigation is slow moving, which often results in incorrect navigation. Also, there is much probability of blocking and reflecting by surrounding environment, which may also result in incorrect navigation. Therefore it is needed to pre-process the signals to adapt it to various applications. In this paper, an algorithm called GPS Buffering Algorithm (GBA) to pre-process the signals is proposed. For this, GPS data obtaining from uNAV GPS receiver are analyzed and classified based on dynamic characteristic. Then, the proposed algorithm is applied to the data and some test results are shown to verify the usefulness of the algorithm