A New Research of Radar Signal Sorting Techniques
Jie Min Zhao · Journal of Projectiles.Rockets.Missiles and Guidance · 2009
A new technology of radar signals sorting,based on the fast independent component analysis(Fast ICA) and carried out at intermediate frequency(IF),has been proposed in this paper,in order to overcome the shortage in the traditional sorting method which fails to adapt to the dense,complicated and changefully modern radar countermeasure signal environments.It discusses the influence of the sampling time choice to iterative number and the similar coefficients,certifies the effectiveness and feasibility of this new technology for separating the weak signals.Meanwhile,signals sorting,together with signals identification,can be implemented on a single hardware module at IF has been emphasized.Simulation results show that the sorting technology can be used to separate various kinds of radar pulse signals in different modulations and CW radar signals,especially to the stochastic PRI radar signals to which the traditional sorting method is difficult to apply.