Digital Array Radar Resource Management Study

Digital Array Radar(DAR)is a kind of phrased array radar,which adopts digital beamforming technology.Compared with traditional Array Radar,DAR have the advantages of detecting precision,anti-jamming and adaptability which lead the development of radar.In order to make full use of the radar system,it is necessary to allocate resource among the tasks,which we call resource management.The resource management includes time resource management,waveform management and radar dwell scheduling.Research the time resource management,starting from the maneuvering target tracking,the Interacting Multiple Model (IMM) tracking algorithm is introduced firstly.Because of the existence of clutter in envionment,the concept of Modified Probabilistic Data Association Filter (MPDAF) is introducted.Then combine the two algorithms,in this way IMM/MPDAF is gotten.Aimed to the problem of lost in tracking process,expanded association door is applied to the algorithm.Based on this,updates the intervals of tasks adaptivly,then the time resource management is realized.As to the waveform management of DAR,the strategy based on the enlarged IMM/MPDAF algorithm is studied,which is mutual information method.By designing the cost function of motion modes of target,selects the waveform which makes the uncertainty of the motion mode smallest.For the problem of beam-dwell scheduling,taking the constraints of time and energy into account fully,the algorithms based on analyzling Time Pointer and Scheduling Interval are studied.Both of the two algorithms introduce pulse interleaving,but the former one is that the tine pointer looks for the suitable task,the later one is the tasks look for the suitable execution time.And in the paper,the two algorithms are campared under different scheduling criterions.In the end,based on the algorithm of analyzling Scheduling Interval combined with the characteristics of MIMO(Multiple Input Multiple Output) mode,we studied the beam-dwell scheduling strategy in MIMO mode.