基于改进型差分进化的MLAT系统布站方法研究

Research on station layout of a MLAT system based on improved DE

对于多点定位系统的定位精度受基站几何布局影响的问题,提出基于改进型差分进化算法的布站优化方法。基于差分进化算法并适当改进,结合场面多点定位系统的其他条件和限制因素,以几何精度因子GDOP为适应度函数,实现基站优化布站,为系统设计和建设中基站位置的选取提供参考依据。仿真结果表明,该布站优化方法在多点定位系统中可获得较高的定位精度。

Aiming at the problem that the geometric layout of the base station of multilateration system directly affects the positioning precision of the target,an optimization method of station layout based on an improved Differential Evolution(DE)algorithm is proposed.Based on the DE algorithm and appropriate improvement,combined with other conditions and limiting factors of a multilateration system,the Geometric Dilution Precision(GDOP)is used as the fitness function to optimize the geometric layout of base stations,providing a reference basis for system design and selection of base station locations during construction.Simulation results show that this method of optimizing station placement can obtain higher positioning precision in a multilateration system.