Design of MIMO Radar Orthogonal Phase Coded Signal Based on Improved Dragonfly Algorithm
Aiming at the problem that MIMO radar is difficult to transmit and collect more accurate orthogonal signals in prac-tical applications,a coding design strategy for MIMO radar orthogonal signals is proposed based on improved dragonfly algorithm.By adding state transition operators in the process of exploration and development optimization,different neighborhood optimization strategies are added to balance the global exploration ability and local development ability of the algorithm.In order to avoid prema-ture convergence of the algorithm,a cross mutation strategy based on individual information is proposed to help the algorithm jump out of the local optimum.In order to improve the convergence speed of the algorithm and maintain high population diversity through-out the iteration process,a transition optimization strategy based on individual information is proposed to replace the original transi-tion process.Finally,the improved troop algorithm is used to generate MIMO radar quasi orthogonal signal,and the experimental re-sults are compared with the experimental results obtained by the latest algorithms,which can obtain a more accurate set of quasi or-thogonal coded signals,and the calculated autocorrelation peak value and cross correlation peak value are lower.
MIMO radarphase codingdragonfly optimization algorithmstate transition operatorinformation interaction
国家科技期刊平台
NSTL
万方数据
