Waveform design for non-cooperative radar networks

Waveform design for non-cooperative radar networks

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In this chapter, we consider the problem of waveform design for radar sensors that operate in a non-cooperative network. This is a system in which multiple radars share some common features (e.g. the same carrier frequency), but they do not cooperate in the detection stage of processing (namely each sensor performs detection processing independently). Our goal is to increase the performance of a sensor of the network, and, at the same time, to limit the interference induced by this element of interest on the remaining sensors. The resulting problem is in general non-deterministic polynomial-hard, namely an optimal solution cannot be calculated in polynomial time. However, it is possible to relax the original problem into a semidefinite programming problem, which is convex. This last problem can easily be solved in polynomial time. Starting from an optimal solution to the relaxed problem, we construct a good solution of the original non-convex problem and evaluate its quality via the approximation bound. The proposed technique, referred to as `waveform design in non-cooperative environment' (WDNE), enjoys the benefits of polynomial time complexity.

Inspec keywords: convex programming; signal detection; mathematical programming; radar signal processing

Other keywords: detection stage; noncooperative radar networks; noncooperative environment; detection processing; radar sensors; polynomial time complexity; waveform design; nonconvex problem; convex programming; semidefinite programming problem

Subjects: Radar equipment, systems and applications; Signal detection; Optimisation techniques

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