SUN Chen-wei, TAO Hai-hong, WANG Ying, et al. Dimensionality Reduction of Large Scale Phased Array-Joint Optimization of Sum and Difference Multiple Beams[J]. Acta Electronica Sinica, 2013, 41(3): 519-525.
SUN Chen-wei, TAO Hai-hong, WANG Ying, et al. Dimensionality Reduction of Large Scale Phased Array-Joint Optimization of Sum and Difference Multiple Beams[J]. Acta Electronica Sinica, 2013, 41(3): 519-525. DOI: 10.3969/j.issn.0372-2112.2013.03.017.
Large and ultra large scale phased arrays have been more and more widely applied because of its high gain and directiveness in the desired directions.However
the enormous feed networks and receiving/transmitter channels
required by digital beam-forming for the whole array
need huge cost and have poor real time.A novel algorithm
optimized for both subarray division and synthesis subarray weighting of sum and difference patterns
is proposed in the paper
in order to avoid grating lobes and acquire lower sidelobe
deep null of difference patterns and fewer cost of beam gain.The simulation results and performance analysis are given to demonstrate the effectiveness and feasibility of the presented algorithm.