基于DSP和MSP430的水声应答器设计  

Design of acoustic responder based on DSP and MSP430

作　　者：陈君[1] 万洪杰[1] 王学伟[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《计算机工程与设计》2012年第10期3817-3820,3886,共5页Computer Engineering and Design

摘　　要：针对国产水声定位系统在浅海石油勘探中定位距离短、无法多目标定位等局限性,设计并实现了一种以MSP430为主控制器、数字信号处理器为协处理器的新型水声应答器。系统硬件采用低功耗设计,水下通信方式为Gold码直接序列扩频,支持多应答器同时应答。通过Matlab仿真和消声水池、湖泊的实际测试,结果表明该应答器性能稳定可靠,待机静态工作电流小于1mA,实现了水下1500m作用距离的多目标应答器定位。Because of the limitations of short positioning distance, unable multFtarget positioned that the domestic acoustic posi- tioning system has in shallow sea oil exploration, the design and implementation of acoustic responder based on MSP430 micro controller unit （MCU） and digital signal processor （DSP） is proposed. The hardware used a low-power design, and the gold se- quence direct sequence spread-spectrum is adopted on communication system, which is supporting multi-user communication. MATLAB-based simulations and experiments are carried out. The results show that the responder has a good performance at supporting multi-target positioned in 1500 m communication distance, and the standby quiescent current is less than lmA.

关 键 词：水声应答器 超低功耗 数字信号处理器 MSP430微控制器 扩频通信 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]