[1]杨杰,李艳芹,陈小安,等.基于LPC1788的AMI码解码电路的设计与实现[J].石油管材与仪器,2018,4(03):12-14.[doi:10.19459/j.cnki.61-1500/te.2018.03.003]
            YANG Jie,LI Yanqin,CHEN Xiaoan,et al.Design and Implementation of AMI Decoder Circuit Based on LPC1788[J].Petroleum Tubular Goods & Instruments,2018,4(03):12-14.[doi:10.19459/j.cnki.61-1500/te.2018.03.003]
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            基于LPC1788的AMI码解码电路的设计与实现
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            石油管材与仪器[ISSN:2096-0077/CN:61-1500/TE]

            卷:
            4
            期数:
            2018年03期
            页码:
            12-14
            栏目:
            开发设计
            出版日期:
            2018-06-20

            文章信息/Info

            Title:
            Design and Implementation of AMI Decoder Circuit Based on LPC1788
            文章编号:
            2096-0077201803-0012-03
            作者:
            杨杰1李艳芹2陈小安1王华波1
            1.中国电子科技集团公司第二十二研究所 河南 新乡 4530032.中国石油集团渤海钻探工程有限公司测井分公司 天津 300280
            Author(s):
            YANG Jie1 LI Yanqin2CHEN Xiaoan1WANG Huabo1
            1.The 22nd Research Institute of CETC Xinxiang, Henan 453003, China2. Logging Co., Bohai Drilling & Exploration Engineering Co.of CNPC, Tianjin 300280, China
            关键词:
            生产井AMI码自动增益ARM单片机
            Keywords:
            production well AMI code automatic gain ARM microcontroller
            分类号:
            P631.4+3
            DOI:
            10.19459/j.cnki.61-1500/te.2018.03.003
            文献标志码:
            A
            摘要:
            针对目前生产测井仪器种类多编码方式各异的特点设计了一款基于LPC1788的地面接收卡在详细介绍AMI码型帧数据格式的基础上重点阐述板卡的信道均衡自动增益调整等硬件电路设计和AMI码的解码时序根据码型特点对长连零情形下的误码原因进行剖析通过采用响应速度更快的ARM芯片优化解码时序消除了位累积时钟偏差有效地降低了误码率在某油田生产井的应用实践表明该板卡性能稳定使用灵活兼容性强能够满足生产测井对于数据传输的需求进一步扩展了SKD3000数控测井仪的应用范围
            Abstract:
            Aiming at the characteristics of current production well tools and various coding methods, a surface receiving circuit based on LPC1788 is designed. On the basis of the detailed introduction of AMI pattern and its frame format, the hardware circuit design, such as channel equalization and automatic gain adjustment, and the decoding timing of the AMI code are mainly elaborated. According to the characteristics of AMI code, the cause of error is analyzed in the case of decoding continuous zero. By optimizing the decode timing and applying ARM, the accumulated deviation of bit clock is greatly eliminated and therefore the decoding BER becomes much lower. The application practice in production well of an oilfield demonstrates that the circuit presents some characteristics of stable, flexible and strong compatibility and can meet the demand of data transformation for production well logging, which further expands the application range of SKD3000.

            参考文献/References:

            [1] 周志彬,王忠义,马文中.50 kbit/s曼彻斯特码测井电缆通信系统研制[J].测井技术,2006,30(6):576-579.
            [2] 董惠娟,李瑞敏,张广玉.单芯测井电缆频率特性分析[J].光纤与电?#24405;?#20854;应用技术,200832(6):17-20.
            [3] 谢飞.测井电缆数据传输方式的分析说明[J].石油仪器,2011,25(5):94-96.
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            备注/Memo

            备注/Memo:
            第一作者简介杨杰女1987年生工程师2012年毕业于长安大学信号与信息处理专业目前从事石油测井设备的设计和技术支持工作E-mail:[email protected]
            更新日期/Last Update: 2018-06-25
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