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| XCP调频波脉冲计数鉴频系统的FPGA实现 | |
| 引用本文： | 贾志成,郭丽娟,李永军,陈雷. XCP调频波脉冲计数鉴频系统的FPGA实现[J]. 自动化与仪表, 2010, 25(1): 6-9 |
| 作者姓名： | 贾志成 郭丽娟 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. 国家海洋技术中心,天津,300112 3. 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计划) |
| 摘 要： | 为提高XCP中三路调频信号鉴频解调的抗干扰性能，采用脉冲计数式鉴频解调法，鉴频中采用倍频技术，提高了鉴频灵敏度。由参考信号发生器产生正交CQR和同相CIR两个参考信号．利用这两个相互正交的同步信号，并行控制多路脉冲计数器实施数字鉴频。采用现场可编程逻辑门阵列FPGA进行鉴频器硬件电路设计来降低系统复杂度并提高系统稳定性。测试结果表明，系统完全满足精度及可靠性等方面要求。 |
| 关 键 词： | 投弃式海流剖面测量仪 鉴频 脉冲计数 调制信号 现场可编程逻辑门阵列 |
Realization of FM Pulse Counting Discrimination System Based on FPGA in XCP |
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| JIA Zhi-cheng,GUO Li-juan,LI Yong-jun,CHEN Lei. Realization of FM Pulse Counting Discrimination System Based on FPGA in XCP[J]. Automation and Instrumentation, 2010, 25(1): 6-9 | |
| Authors: | JIA Zhi-cheng GUO Li-juan LI Yong-jun CHEN Lei |
| Affiliation: | JIA Zhi-cheng1,GUO Li-juan1,LI Yong-jun2,CHEN Lei3(1.School of Information Engineering,Hebei University of Technology,Tianjin 300401,China,2.National Ocean Technology Center,Tianjin 300112,3.School of Information Engineering,Tianjin University of Commerce,Tianjin 300134,China) |
| Abstract: | Three XCP FM signals are taken pulse counting discrimination to improve the anti-interference performance in frequency discrimination,while frequency multiplier technology are used to enhance the sensitivity of the frequency.The reference signal generator produce two-phase reference signal CQR and CIR which corresponding to orthogonal and in-phase,then these two simultaneous orthogonal signals are used to control the frequency discrimination implementation of multi-channel pulse counter collaterally.The har... |
| Keywords: | expendable current profiler(XCP) frequency discrimination pulse counting modulation signal field programmable gate arrays(FPGA) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |