| 基于FFT的伪随机码快速捕获设计与实现 |
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| 引用本文： | 万灵.基于FFT的伪随机码快速捕获设计与实现[J].科技广场,2010(9). |
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| 作者姓名： | 万灵 |
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| 作者单位： | 华东交通大学信息工程学院,江西,南昌,330013 |
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| 摘 要： | 本文介绍了基于FFT的伪随机码快速捕获的原理,并且对快速捕获模块的核心单元,即采样率转换单元和FFT/IFFT计算单元的FPGA实现进行了详细论述。仿真和实现结果表明,此方法能快速地捕获扩频信号中的伪随机码相位。
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| 关 键 词： | 扩频通信 快速捕获 现场可编程门阵列 快速傅里叶变换 |
Design and Implementation of Pseudo-random Code Acquisition Based on FFT |
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| Wan Ling.Design and Implementation of Pseudo-random Code Acquisition Based on FFT[J].Science Mosaic,2010(9). |
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| Authors: | Wan Ling |
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| Institution: | Wan Ling(School of Information Engineering,East China Jiaotong University,Jiangxi Nanchang 330013) |
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| Abstract: | This paper introduces the theory of Pseudo-random code acquisition based on FFT.The FPGA implementation of two most important modules, sampling rate conversion module and FFT/IFFT calculation module, is described in detail. Simulation results show that this method implements Pseudo-random code rapid acquisition and reasonable hardware resource utilization under low sig- nal-noise ratio and high data modulation rate. |
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| Keywords: | Spread Spectrum Communication Rapid Acquisition FPGA FFT |
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