| 基于FPGA的GPS中频信号跟踪相关器设计与实现 |
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| 引用本文： | 张侃,王庆,潘树国.基于FPGA的GPS中频信号跟踪相关器设计与实现[J].舰船电子工程,2010,30(9):92-95. |
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| 作者姓名： | 张侃 王庆 潘树国 |
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| 作者单位： | 东南大学仪器科学与工程学院,南京,210096 |
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| 基金项目： | 国家科技支撑计划重点项目课题 |
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| 摘 要： | 文章分析了GPS基带信号处理跟踪环路中相关器的工作原理及特点,提出一种基于现场可编程门阵列（FP-GA）的GPS相关器结构。采取模块化设计思想,设计了载波产生器、CA码产生器、码-载波乘法器和积分累加器,并对相关器进行仿真分析。仿真结果表明,该数字相关器能在一定噪声背景下解调出信号。该数字相关器可与微处理器配合,对数据进行并行处理,提高运行速度。
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| 关 键 词： | GPS接收机 FPGA 相关器 cordic |
Design and Realization of Correllator for GPS IF Signal Tracking Based on FPGA |
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| Zhang Kan,Wang Qing,Pan Shuguo.Design and Realization of Correllator for GPS IF Signal Tracking Based on FPGA[J].Ship Electronic Engineering,2010,30(9):92-95. |
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| Authors: | Zhang Kan Wang Qing Pan Shuguo |
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| Institution: | Zhang Kan Wang Qing Pan Shuguo(School of Instrument Science and Engineering,Southeast University,Nanjing 210096) |
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| Abstract: | This paper describes the thesis of correllator used in GPS base band signal processing.An architecture of the correllator based on FPGA is proposed.Adopted the idea of modular design,carrier wave generator,C/A code generator,code-carry multiplier,integrate-dumper is designed,and simulation is carried out.The result shows that the correllator can demodulate the signal under certain noise background.The correllator can operate with a microprocessor to have data processed parallelly.The operating speed is enhanced. |
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| Keywords: | FPGA cordic |
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