An improved location algorithm in Wireless Sensor Network

Localization, for a sensor to determine its location information has become an attractive research issue in Wireless Sensor Network(WSN). At present, Time Difference of Arrival Algorithm (TDOA) has the higher significance of the research. According to improve the precision of the algorithm, in this paper, By the study of the chan algorithm, least squares algorithm, the optimization algorithm of least square, according to improve the precision of the algorithm, based on the three algorithm, the author puts forward a kind of improved TDOA algorithm. By using the simulation software MATLAB, to set up the network, to make the simulation experiments, the author get a large number of experimental data. Most of experimental data prove this improved location algorithm can improve the position precision.