基于启发式算法的空时自适应处理的波束形成改进

ITo solve the problem of higher sidelobes space-time adaptive algorithm based on interfering subspace projection in circular array, we use five heuristic algorithms, including Ant Colony algorithm, Wind Driven algorithm, Firefly algorithm, Cuckoo Search algorithm and Bat algorithm, to optimize and compare beamforming simulation results under 5 wideband noise interferences and mixed interferences. The gain of and sidelobes is changed by adjusting the position of the antenna on the circumference. Therefore the sidelobes is decreased. The experimental result shows that the heuristic algorithm is more effective in optimizing beamforming results and can suppress the sidelobes and improve the mainlobe skewing at the same time. After comparison, it can be concluded that the bat algorithm has the best optimization effect in five algorithms.