| 猝发式直扩系统伪码同步技术的FPGA实现 |
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| 引用本文： | 张福洪,朱小辉,吴铭宇,易志强.猝发式直扩系统伪码同步技术的FPGA实现[J].杭州电子科技大学学报,2012,32(4):45-48. |
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| 作者姓名： | 张福洪 朱小辉 吴铭宇 易志强 |
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| 作者单位： | 杭州电子科技大学通信工程学院,浙江杭州,310018 |
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| 基金项目： | 浙江省教育厅资助项目（Y201018592） |
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| 摘 要： | 针对短时猝发式直扩系统中大频偏情况下伪码捕获和跟踪问题,该文提出了一种基于扫频、数字匹配滤波器和数字延迟锁定跟踪环的伪码同步方案,并基于FPGA平台进行硬件实现.试验结果表明该方案可以满足系统设计要求.
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| 关 键 词： | 扫频 多普勒效应 数字匹配滤波器 数字延迟锁定环 |
Implementation of PN Code Synchronization with FPGA in Burst-mode DSSS System |
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| ZHANG Fu-hong
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ZHU Xiao-hui
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WU Ming-yu
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YI Zhi-qiang.Implementation of PN Code Synchronization with FPGA in Burst-mode DSSS System[J].Journal of Hangzhou Dianzi University,2012,32(4):45-48. |
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| Authors: | ZHANG Fu-hong ZHU Xiao-hui WU Ming-yu YI Zhi-qiang |
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| Affiliation: | ( School of Communication Engineering, Hangzhou Dianzi University, Hangzhou Zhejiang 310018, China) |
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| Abstract: | For the question of PN code acquisition and tracking of spread spectrum signals under large fre- quency offset circumstance in short-term burst-mode DSSS system, an algorithm is proposed to achieved PN code synchronization based on sweeping frequency, digital matched filter and DLL. The algorithm is success- fully validated based on FPGA hardware platform. The results show that the scheme can meet the system de- sign which achieves PN code acauisition and tracking of spread spectrum signals. |
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| Keywords: | sweeping frequency Doppler effect DMF DLL |
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