| 直扩系统PN码捕获和跟踪的FPGA实现 |
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| 引用本文： | 孟明,许家栋,韦高. 直扩系统PN码捕获和跟踪的FPGA实现[J]. 现代电子技术, 2011, 34(17): 119-121 |
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| 作者姓名： | 孟明 许家栋 韦高 |
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| 作者单位： | 西北工业大学电子信息学院,陕西西安,710129 |
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| 摘 要： | 在数字匹配滤波器和超前滞后鉴相环路的理论基础上，采用VHDL编程，在FPGA芯片上实现PN码捕获和跟踪的电路。详细讨论了各电路模块的设计实现方法。完成电路的仿真验证，给出了仿真波形。结果表明电路工作正常可靠，系统扩展方便灵活，满足设计要求。
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| 关 键 词： | FPGA PN码捕获 PN码跟踪 数字匹配滤波器 超前滞后环路 |
Realization of Capture and Tracking of PN-code with FPGA in DSSS |
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| MENG Ming,XU Jia-dong,WEI Gao. Realization of Capture and Tracking of PN-code with FPGA in DSSS[J]. Modern Electronic Technique, 2011, 34(17): 119-121 |
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| Authors: | MENG Ming XU Jia-dong WEI Gao |
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| Affiliation: | MENG Ming,XU Jia-dong,WEI Gao(School of Electronics and Information,Northwestern Polytechnical University,Xi'an 710129,China) |
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| Abstract: | Based on the theory of digital matched filter and advance-lag loop,a circuit of capture and tracking of PN-code with FPGA is realized using VHDL programming.The design of all module of the circuit is discussed in detail,the circuit simulation and validation is completed,and the simulative waveform is showed.Result shows that the circuit works normal and reliable,and the system extension is convenient and flexible,which can meet the design requirements well. |
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| Keywords: | FPGA capture of PN-code tracking of PN-code digital matched filter advance-lag loop |
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