基于磁场时频分析的舰船速度识别  

Determination of the Ship Speed Based on the Time frequency Analysis of a Ship Magnetic Field

作　　者：李斌[1] 袁翔 汪晓亚 

机构地区：[1]西北工业大学航海工程学院,陕西西安710072 [2]中国船舶总公司710所,湖北宜昌443003

出　　处：《探测与控制学报》2000年第3期42-46,共5页Journal of Detection & Control

摘　　要：首次利用短时傅立叶变换技术对舰船磁场进行了时频分析 ,讨论了舰船磁场的时频分布特性 ,在时频域提取了舰船的速度特征参数 ,通过大量数据分析表明 。On the basis of analyzing the time frequency of a ship magnetic field by using short time Fourier transform, this paper discusses the time frequency distribution characteristics of the ship magnetic field. And the speed feature parameters of a ship are extracted in a time frequency field. The analysis results obtained have shown that these papameters can be used to determine ship speed.

关 键 词：舰船磁场 时频分析 短时傅立叶变换 速度识别 

分 类 号：TN[电子电信] 911.7