多波束成像声纳系统低功耗设计  

Low-power Design of Multibeam Imaging Sonar System

作　　者：崔海英 董琎琎 夏伟杰[2] 窦法旺 蒋鹏飞[2] 金雪[2] 

机构地区：[1]无锡市海鹰加科海洋技术有限责任公司,江苏无锡214061 [2]南京航空航天大学电子信息工程学院,江苏南京210016

出　　处：《海洋测绘》2015年第3期71-74,共4页Hydrographic Surveying and Charting

基　　金：江苏高校优势学科建设工程项目(2014);2014年江苏省产学研联合创新资金(BY2014003-14)

摘　　要：针对多波束成像声纳系统降低系统功耗提高续航能力的要求,从硬件和算法两个方面展开了对系统的低功耗设计。硬件方面通过采用单电源运算放大器(OPA)电路架构对系统调理模块的放大、滤波链路进行了重新设计,实际测试结果表明实现了14.37W的系统功耗降低。算法方面通过提出一种基于圆阵的旋转多波束形成方法,在完成系统多波束设计的基础上实现了85倍的资源优化效果,为信号处理模块的FPGA芯片低功耗选型提供了技术支撑。According to the requirement of reducing the power consumption and improving the battery life in multibeam imaging sonar system,the research of the system＇ s low-power design from two aspects of hardware and algorithm was carried out in this paper.In the aspect of hardware, the amplification and filtering chain of the conditioning module was redesigned through using single power operational amplifier （OPA） circuit architecture. In the aspect of algorithm, a rotating multibeam forming method based on circular array was proposed, realizing 85 times the resource optimization upon completion of system multibeam design, and providing the technical support for low-power FPGA selection in the signal processing module.

关 键 词：成像声纳 低功耗设计 单电源运放 旋转多波束形成 

分 类 号：P733.2[天文地球—物理海洋学]