水声定位多阵元跳频编码的模拟退火算法优化  

Simulated Annealing Algorithm Optimization of Frequency Hop Multi-array-elements Coding in Underwater Acoustic Positioning System

作　　者：李国栋[1,2] 冯海泓[1] 黄敏燕[1] 

机构地区：[1]中国科学院声学研究所东海研究站,上海200032 [2]中国科学院研究生院,北京100039

出　　处：《探测与控制学报》2009年第5期15-19,共5页Journal of Detection & Control

基　　金：国家高技术研究发展计划项目资助(2006AA09Z310)

摘　　要：采用跳频编码对水声定位阵元进行编码,编码之间的互相关函数直接影响时延估计精度,提出以互相关峰最小作为编码优化目标。在上述分析的基础上,通过模拟退火算法优化对编码进行组合优化。试验结果表明,通过优化后的跳频编码对水声定位阵元进行编码,可以实现水声信号扩频,减小阵元信号间相互影响的作用。Frequency hop coding of Multi-array-elements is proposed in Underwater Acoustic positioning system,cross-correlation function of Multi-array-elements codes directly affects the precision of time delay estimation.Minimum peak of cross-correlation as optimization objective is Used.On the base of analysis mentioned above,simulated Annealing Algorithm is used to optimize the codes.The results of experimentation show a good agreement with the theoretical analysis,and demonstrate that the method could induce interference of Multi-array-elements signals.

关 键 词：水声定位 跳频编码 模拟退火算法 组合优化 时延估计 

分 类 号：TB556[理学—物理]