计算机科学 ›› 2017, Vol. 44 ›› Issue (Z6): 136-138.doi: 10.11896/j.issn.1002-137X.2017.6A.031
邵鹏,吴志健,彭虎,王映龙,周炫余
SHAO Peng, WU Zhi-jian, PENG Hu, WANG Ying-long and ZHOU Xuan-yu
摘要: 粒子群优化算法(PSO)因具有参数少、易于实现等优点,在解决优化问题时表现出很好的性能。有限长单位脉冲响应(FIR)数字滤波器因具有稳定的结构、易于实现等优点,在实际中有着很广泛的应用。因此,将基于三角函数因子的改进PSO算法(TFPSO)用于对FIR低通数字滤波器性能的优化,并将其与基于折射原理反向学习(refrPSO)、基于反向学习(OPSO)的PSO算法所设计的FIR低通数字滤波器的性能进行比较。在实验中构造出一种性能较好的适应值函数,以验证这几种改进的PSO算法所设计的FIR低通数字滤波器的性能。实验结果表明,基于三角函数因子的PSO算法滤波性能较差,而基于折射原理反向学习的PSO算法性能最佳。
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