Joint Waveform Control and Resource Optimization for Maneuvering Targets Tracking in Netted Colocated MIMO Radar Systems

In netted colocated multiple-input multiple-output (MIMO) radar system (NCMRS), constrained to the limited resource, one must decide when to run the NCMRS, which nodes are to be activated, how much energy should be consumed, and which waveform type as well as parameter should be transmitted by each activated node. To this end, in this article, we consider the problem of joint waveform control and space-time resource management for maneuvering targets tracking in NCMRS. First, the joint waveform type as well as parameter selection and space-time resource management optimization model is proposed, where both the network system resource consumption and the overall tracking performance of maneuvering targets are considered and employed as the network comprehensive cost. Then, to solve the established optimization problem efficiently, a modified particle swarm optimization (MPSO)-based joint waveform control and space-time resource optimization (JWCSTRO) algorithm is put forward. In the MPSO-based JWCSTRO algorithm, the system sampling period, the activated nodes, the node-target assignment, and the subarray number, transmit energy and transmit waveform type, as well as parameter of each activated node can be adjusted jointly and adaptively, where the former five implement the space-time resource optimization and the last one achieves the waveform control in NCMRS. Finally, numerical simulation results demonstrate the effectiveness of the proposed MPSO-based JWCSTRO algorithm. Furthermore, compared with the five other benchmark algorithms, the maximum and minimum improvement ratios of the network comprehensive cost of the proposed MPSO-based JWCSTRO algorithm are 44.89% and 21.68%, respectively.