Space-invariant projection method for multi-target positioning

This paper discusses the positioning method of the sensor network in the viewpoint of the imaging technique. We find that similarly to the GPS system, sensor networks can position and track targets in 3D space. In multitarget case, the data association problem is crucial and extremely complex, which can be overcome via the projection strategy. In the face of a vast surveillance region, the space-variant feature of the system resolution makes it difficult to partition the image space soundly. By mapping the geographic space into the BR space, one can partition the 3-D space exhaustively and exclusively.