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Multiple Target Localizationin WSNs via CS Reconstruction Method Based on Discrete CSO Algorithm

  

  1. (1. Shazhou Professional Institute of Technology, Zhangjiagang 215600, China; 2. Soochow University, Suzhou 215006, China)
  • Received:2017-07-06 Online:2017-12-25 Published:2017-12-26

Abstract: The multiple target localization problem of WSNs is studied, and a multiple target localization method based on discrete chicken swarm optimization (DCSO) and compressed sensing (CS) theory is proposed. Firstly, some definitions related to DCSO algorithm are given, and the discrete chicken coding method and the iterative evolution strategy are designed. Based on this, a WSNs application model based on CS is established, and the measurement matrix and sparse matrix are chosen. Finally, the DCSO is applied to the CS sparse signal reconstruction algorithm, which realizes unknown sparsity multi-objective information reconstruction. The simulation results show that, compared with OMP and MLE, this method has better effect in multiple target locating precision.

Key words: wireless sensor networks, multiple target localization, discrete chicken swarm optimization, compressed sensing, positioning precision

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