Abstract: The present disclosure provides a method for conformal array pattern synthesis based on a solution space pruning particle swarm optimization algorithm (PSO), the method comprises taking a suppression index of a peak side lobe level (SLL) as a first index, obtaining the first array element excitation satisfying the first index under the constraint of the dynamic range ratio (DRR) of the array element excitation amplitude through iterations; obtaining a second array element excitation satisfying the multiple optimization objectives under the constraint of the DRR of the array element excitation amplitude by a solution algorithm according to the first array element excitation.

Abstract: Disclosed is a method for direction-of-arrival estimation based on sparse reconstruction in the presence of gain-phase error, which comprises the following steps: firstly, estimating a noise power and an gain error from an array received signal by adopting a characteristic decomposition method; then, based on a compensated covariance matrix, transforming a direction-of-arrival estimation problem into a non-convex optimization problem in a sparse frame by a method of sparse reconstruction; finally, estimating a grid angle and a deviation angle by using an alternate optimization method. This estimation method can effectively eliminate the influence of a phase error in direction-of-arrival estimation, and has better adaptability, which improves the resolution and estimation accuracy of the algorithm.

Abstract: The present disclosure provides a method for conformal array pattern synthesis based on a solution space pruning particle swarm optimization algorithm (PSO), the method comprises taking a suppression index of a peak side lobe level (SLL) as a first index, obtaining the first array element excitation satisfying the first index under the constraint of the dynamic range ratio (DRR) of the array element excitation amplitude through iterations; obtaining a second array element excitation satisfying the multiple optimization objectives under the constraint of the DRR of the array element excitation amplitude by a solution algorithm according to the first array element excitation.