Study on assembled optimum location algorithm for jammer

When jammer is near the axial of sensors, there is a problem that the location precision is very low when using traditional trigonometric location algorithm. In order to solve this problem, projection location algorithm based on geometry relation between jammer and sensors is presented. Because the location precision of near area using this method is higher while the location precision of far area is lower than the preceding one, so in order to get high location precision in all areas, assembled optimum location algorithm is presented by combining the two former algorithms of location and utilizing redundancy information of multisensor. Results of simulation show that, using this algorithm, the estimation of jammer´s position is more valid and precision of estimation is higher than the preceding one.