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| XCTD剖面仪数据传输电路的设计与实现 | |
| 引用本文： | 贾志成,于晓山,尼建军,李永军,陈雷.XCTD剖面仪数据传输电路的设计与实现[J].海洋技术,2010,29(2). |
| 作者姓名： | 贾志成 于晓山 尼建军 李永军 陈雷 |
| 作者单位： | 1. 河北工业大学信息工程学院,天津,300401 2. 海军司令部航海保证部,天津,300042 3. 国家海洋技术中心,天津,300112 4. 天津商业大学,信息工程学院,天津,300134 |
| 基金项目： | 国家高技术研究发展计划(863)资助项目 |
| 摘 要： | 针对XCTD(投弃式温盐深)剖面仪数据传输速率低、可靠性差的缺点,提出基于曼彻斯特编码的基带传输技术。在系统结构设计的基础上,着重讨论了基于FPGA的曼彻斯特编码器、位定时提取电路和自动增益控制电路的设计。通过测试表明,编码后的系统不仅可以使用基带信号直接传输,而且能够满足系统的通信速率要求。 |
| 关 键 词： | 曼彻斯特码 自动增益控制 全数字锁相环 |
Design and Realization of Data Transmission Circuit for XCTD Profiler |
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| JIA Zhi-cheng,YU Xiao-shan,NI Jian-jun,LI Yong-jun,CHEN Lei.Design and Realization of Data Transmission Circuit for XCTD Profiler[J].Ocean Technology,2010,29(2). | |
| Authors: | JIA Zhi-cheng YU Xiao-shan NI Jian-jun LI Yong-jun CHEN Lei |
| Institution: | JIA Zhi-cheng1,YU Xiao-shan1,NI Jian-jun2,LI Yong-jun3,CHEN Lei4 (1.College of Information Engineering,Hebei University of Technology,Tianjin 300401,China,2. The Navigation Guarantee Department of Chinese Navy Headquarters,Tianjin,300042,3.National Ocean Technology Center,Tianjin 300112,4. College of Information Engineering,Tianjin University of Commerce,Tianjin 300134,China) |
| Abstract: | Aiming at low data transmission rate and reliability of the XCTD (Expendable Conductivity, Temperature and Depth) Profiler, baseband transmission technology based on Manchester code is proposed. Based on system structure design, the emphasis is to discuss the design of Manchester coder and bit synchronization extraction circuit and AGC circuit. The test result shows that the system after coding can make baseband signal transmit directly and meet the requirement of communication rate. |
| Keywords: | XCTD |
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