| 曹松军,陈龙,汪玉玲,邱薇,王长红.ADSP-BF548在相关测速声呐系统上的应用[J].声学技术,2014,33(6):544~547 |
| ADSP-BF548在相关测速声呐系统上的应用 |
| An ADSP-BF548 based correlation sonar system |
| 投稿时间：2013-09-05 修订日期：2014-01-14 |
| DOI：10.3969/j.issn1000-3630.2014.06.013 |
| 中文关键词: 相关测速声呐 ADSP 软件系统设计 |
| 英文关键词: correlation sonar ADSP software design |
| 基金项目:国家863计划资助项目(2006AA09A313). |
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| 中文摘要: |
| 相关测速声呐是一种适用于水面航行的船舶或者水下航行的潜器的设备,主要用于获取载体速度信息、流速和海深,与惯导联合可用于载体的导航定位.相关测速声呐基于"波形不变性"原理,通过理论时空相关函数和数据时空相关函数的最小二乘拟合获取载体速度.构建了一套新的基于ADSP-BF548平台的软件控制系统.新系统实现了网络、串口、CAN等通信方式;完成了基于FatFs R0.08b文件系统的数据存储功能;动态电源管理可以减小系统功耗,在电池供电时能延长有效工作时间.从系统通信、数据存储、电源管理、系统工作等方面对新平台软件系统的特点进行了介绍. |
| 英文摘要: |
| Correlation Sonar is usually used on the boat or the UUV for obtaining the velocity of vessel, current velocities and the depth of water. With the help of INS, it can help the vessel to locate its position and sail on the right direction. Correlation Sonar works on the principle of ‘waveform invariance’ and obtains the velocity of vessel by least-square fitting the theoretical correlation function and the data correlation function. In this paper, a new software control system is established on the platform of BF548. The new system has some communication modes, including TCP, UART, CAN. A file system based on FatFs R0.08b is built for storing data. The dynamic power system is used to reduce power consumption, which can help system to increase working time in using battery. The new system is introduced in the following aspects: system communication, data storage, power management and working process. |
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