Complexity-reduced optimal power allocation in passive distributed radar systems

In this paper, we provide an alternative derivation of the optimal power allocation for distributed passive radar systems in closed-form. Our approach provides new insights to the nature of the power allocation problem and extracts some optimality conditions which are in turn used to achieve a new algorithm with reduced complexity for a reliable sensor selection. Finally, we show the computational complexity and the run-time of the proposed algorithm against the previously available one by analytic and simulative comparisons.