Two-hierarchy hough transform based track initiation algorithm

Low signal-to-noise ratio target track initiation is one of the major problems in dense clutter environment target tracking. To solve the track initiation problem of a class of target with Doppler measurement, a two-hierarchy Hough transform track initiation algorithm is proposed. By introducing the time index of measurement and using the relationship between the Doppler and range measurement, the algorithm converts the track initiation problem in 3D space to the track initiation problem in two 2D spaces. In addition, four theorems concerning the characteristics of the proposed algorithm are given, which provide guidance for the parameter design of the algorithm. Simulation results show the efficacy of the proposed algorithm.