Left-right resolution methods in towed arrays

Towed linear arrays suffer from the inherent problem of being unable to distinguish between targets on the left or right side of the array. Normal approaches to solve this uses a volumetric array or by own platform manoeuvres. This paper introduces a method which maximizes the left-right rejection ratio by means of a constrained beam former approach. It is compared with different contemporary solutions and gives better results in terms of rejection ratios and is well suited for real time implementation.