WAN Yifei, PENG li. Improved A* ant colony algorithm for robot path planning problem solving[J]. 2019, (12): 153-156+160. DOI: 10.13873/j.1000-9787(2019)12-0153-04.
改进A*蚁群算法求解机器人路径规划问题
摘要
针对蚁群算法收敛速度慢、效率低以及易陷入局部最优的一系列问题
提出改进的A
*
蚁群算法。为降低蚁群死锁、停滞的概率
先将栅格地图进行处理。其次为了提高蚁群的效率
引进A
*
算法确定蚁群的初始信息素
同时改进蚁群信息素更新方式
从而提高算法的收敛速度;针对局部最优的问题
提出将蚁群中的启发函数进行改进
不仅考虑到可行栅格中的最短距离
还考虑到目标点的位置
并且引入简化算子对蚁群的路径进行优化。通过4组仿真对比
改进的A
*
蚁群算法效果显著。
Abstract
An improved A
*
ant colony algorithm is proposed
aiming at a series of problems such as slow convergence rate
low efficiency and easy to be trapped in local optimum. In order to reduce the probability of colony deadlock and stagnation
the raster map is processed first. Secondly
in order to improve the efficiency of ant colony
A
*
algorithm is introduced to determine the initial pheromone of ant colony
and the pheromone update mode is improved
so as to improve the convergence speed of the algorithm. Aiming at the problem of local optimum
improving heuristic function of ant colony is proposed
not only consider shortest distance of the possible raster
but also consider the target position
and introduce simplified ope
rator for optimization of the path of ant colony. Through the comparison of four groups of simulation