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Interference Suppression Using Knowledge-Aided Subarray Pattern Synthesis, David A. New
Interference Suppression Using Knowledge-Aided Subarray Pattern Synthesis, David A. New
Theses and Dissertations
Most phased array systems subarray many antenna elements into far fewer digitized channels. While having more degrees of freedom (DOF) yields better performance, adding channels to create more digital DOF increases system cost and data throughput requirements. A subarray itself constitutes a phased array with as many DOF as it has antenna element weights. Typically, only one degree of freedom is used to steer the maximum gain direction of the subarray pattern. For typical antenna geometries a single subarray will provide many more spatial DOF than there are digitized channels. The inherent DOF of the subarrays could be used to …