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.
出处
《计算机工程与设计》
CSCD
北大核心
2012年第10期3817-3820,3886,共5页
Computer Engineering and Design
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
Key words： acoustic responder
ultra low power
digital signal processor （DSP）, MSP430 micro controller unit
spread spec-trum communication
