电测与仪表Issue(5)：11-14,25,5.
基于超声阵列传感器与遗传MUSIC的局放源波达方向估计
Source DOA Estimation Based on Ultrasonic Array Sensor and Genetic MUSIC
摘要
Abstract
Partial discharge direction of arrival ( DOA) estimation based on ultrasonic array sensor is the basis for ac-curate positioning of the partial discharge. Considering the problem of low precision and searching success rate of tra-ditional MUSIC direction finding algorithm, the paper presents a new method based on ultrasonic array sensor and ge-netic MUSIC algorithm for partial discharge DOA estimation. The genetic MUSIC algorithm constructs fitness function with spatial spectrum estimation, and searches spectral peak of the azimuth based on the idea of genetic iterative searching for global optimal solution. This paper carried out a large number of simulation experiments through the es-tablishment of signal model and array model, then uses three indicators of searching precision, searching success rate and searching time as the basis to compare the direction finding results of classical MUSIC and genetic MUSIC. Re-sults show that compared with traditional MUSIC algorithm, the genetic MUSIC based algorithm improves the searching success rate and reduces the error by 0. 3° in absolute precision, therefore obtains higher accuracy of partial discharge DOA angle.关键词
局部放电/MUSIC算法/遗传算法/阵列传感器Key words
partial discharge/MUSIC algorithm/genetic algorithm/array sensor分类
信息技术与安全科学引用本文复制引用
侯姗姗,谢庆,廖峰,纪巍..基于超声阵列传感器与遗传MUSIC的局放源波达方向估计[J].电测与仪表,2014,(5):11-14,25,5.基金项目
国家高技术研究发展计划(863计划)(2011AA05A121) （863计划）
