This study is concerned with the processing of signals
received by an array of sensor elements which may range from
acoustic transducers in a sonar system to microwave horns in
a radar system. The main aim of the work is to devise
techniques for resolving the signals arriving from closely
spaced sources in order to determine the presence and
direction of these sources. [Continues.]
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy at Loughborough University.