基于记忆模拟退火与粒子群的多点小孔泄漏信号盲分离方法  

BSS of Multi Points Small Leakage Signals Based on Memory Simulated Annealing and PSO

作　　者：郝永梅 覃妮 邢志祥 岳云飞[2] 严欣明[2] 钟成 HAO Yongmei;QIN Ni;XING Zhixiang;YUE Yunfei;YAN Xinming;ZHONG Cheng(School of Environmental and Safety Engineering,Changzhou University,Changzhou 213164,China;Changzhou Branch,Jiangsu Institute of Special Equipment Safety Supervision and Inspection,Changzhou 213164,China;Changzhou Xin'ao Gas Engineening Co.,Ltd.,Changzhou 213161,China)

机构地区：[1]常州大学环境与安全工程学院,江苏常州213164 [2]江苏省特种设备安全监督检验研究院常州分院,江苏常州213164 [3]常州新奥燃气工程有限公司,江苏常州213161

出　　处：《常州大学学报（自然科学版）》2019年第1期85-92,共8页Journal of Changzhou University：Natural Science Edition

基　　金：江苏省重点研发计划专项(BE2018642);常州市科技项目(CM20179060)

摘　　要：为了减少环境噪声及其多点泄漏信号的相互影响,提高管道泄漏定位精度,提出一种盲源分离算法,即基于记忆模拟退火与粒子群(Memory Simulated Annealing and Particle Swarm Optimization,MSAPSO)的盲源分离算法。将嵌入记忆器的模拟退火算法与粒子群算法引入盲源分离算法中,结合概率突跳性在解空间中随机寻找极大似然目标函数,通过循环迭代得出全局最优,改善迂回搜索方式,提高收敛速度与分离精度。并将MSAPSO盲源分离算法应用于城市压力管道多点小孔泄漏定位实验,结果表明:改进的MSAPSO盲源分离算法,将管道多点泄漏定位平均误差从7.7%降到3.3%。In order to reduce the environmental noise and the influence of multi point leakage signal,improving pipeline leak location accuracy,a blind source separation algorithm is proposed,which is based on particle swarm memory simulated annealing(Memory Simulated Annealing and Particle Swarm Optimization,MSAPSO)algorithm for blind source separation.The simulated annealing algorithm and particle swarm algorithm is embedded into the memory of the blind source separation algorithm,combined with the probabilistic jumping property of random search for the maximum likelihood objective function in the solution space,by iterating the global optimization to improve the circuitous search methods,the convergence speed and the precision of separation.The MSAPSO blind source separation algorithm is applied to the multi holes leak location experiment of urban pressure pipeline.The results show that the improved MSAPSO blind source separation algorithm reduces the pipeline multi-point leak location error from 7.7% to 3.3%.

关 键 词：盲源分离 模拟退火粒子群 记忆模拟退火与粒子群 多点小孔泄漏 定位应用 

分 类 号：TK8[动力工程及工程热物理—流体机械及工程]