A novel power control method of phased array radar based on the predicted tracking Cramér-Rao Lower Bounds

A novel radar energy control strategy based on an Interacting Multiple Model Particle Filter (IMMPF) tracking method is presented in this paper, which controls the radiated power of radar according to predicted tracking Cramér-Rao Lower Bounds (CRLB). Firstly, the computation model of the CRLB as the relation model between the radiated power and the tracking performance is built. Secondly, the power control method is presented according to the model, and the power which leads the closest result to the desired CRLB will be chosen as the radiated power. The tracking accuracy and Low Probability of Intercept (LPI) performance are demonstrated in the Monte Carlo simulations. The results are validated through the comparison with other methods.