Fusion Tracking for Maneuvering Targets with Wavelet Transform Using Bearings-Only Measurements of Two platforms

Bearings-only tracking usually faces two difficulties, nonlinear filtering and high-rate measurements processing. It is presented a novel fusion tracking algorithm based on wavelet transform for tracking maneuvering target using bearings-only measurements of two platforms. In the algorithm, Passive location method was first used to determine the coordinates in Cartesian coordinate system, and then interacting multiple model (IMM) algorithm based on multi-rate kinematic model was used to estimate the state of targets. The new algorithm can avoid nonlinear filtering and has less computational amount. Monte Carlo simulations show the efficiency of the new algorithm.