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Acta Armamentarii ›› 2025, Vol. 46 ›› Issue (1): 231199-.doi: 10.12382/bgxb.2023.1199

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A Cooperative Game Power Allocation Method for Distributed MIMO Radar Detecting a Low-altitude Target

QI Cheng1,*(), XIE Junwei1, ZHANG Haowei1,**(), WANG Lei2, WANG Ruijun1, FEI Taiyong3   

  1. 1 Air Defense and Anti-missile College, Air Force Engineering University, Xi’an 710051, Shaanxi, China
    2 Air Force Research Institute, Beijing 100085, China
    3 Air Force Early Warning Academy, Wuhan 410039, Hubei, China
  • Received:2023-12-20 Online:2024-03-20
  • Contact: QI Cheng, ZHANG Haowei

Abstract:

To enhance the target detection efficiency of distributed multiple input and multiple output (MIMO) radar systems in low-altitude penetration combat scenarios,a cooperative game power allocation (CGPA) method is introduced.A distributed MIMO radar signal model used in a low-altitude multipath environment is established based on the support information with potential errors,and a detection model is derived based on the Neyman-Pearson criterion.The signal to interference plus noise ratio (SINR) is used as the utility function for the optimization model by incorporating the Max-Min criterion.On this basis,a weighted method is employed to streamline the computation of the Shapley value pertaining to coalition interests,therefore resulting in a cooperative resource allocation framework that meets both Pareto optimality and fairness criteria.The fluctuations and fading of received signal amplitude stemming from the multipath effect can be significantly mitigated by meticulously managing transmission power resources.Furthermore,in addition to enhancing the stability of the received signal,the abundant scattering features in the multipath environment are mined and harnessed,thereby effectively boosting the detection efficiency of the radar system.Simulated results validate the superior performance of distributed MIMO radar system for detecting the low-altitude multipath target.The proposed power allocation method significantly enhances the detection capabilities of the system while maintaining excellent real-time performance.

Key words: distributed multiple input and multiple output radar system, radar detection, multipath effect, power allocation, cooperation game theory

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