EMFit based Ultrasonic Phased Arrays with evolved Weights for Biomimetic Target Localization

Bats use the spatial filtering performed by their pinnae in localization tasks. We propose a similar localization scheme based on the spatial filtering of the received echoes by using a phased array. By evolv- ing the weights of a linear phased array using a genetic algorithm, a very efficient spatial filter can be implemented. The localization performance of the evolved array in combination with the biomimetic localization algo- rithm is compared to a standard phased array localization scheme.