| 基于FFT的星上多路FDMA/FSK信号解调研究 |
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| 引用本文： | 潘克刚,张邦宁,郭道省.基于FFT的星上多路FDMA/FSK信号解调研究[J].通信学报,2006,27(8):82-86. |
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| 作者姓名： | 潘克刚 张邦宁 郭道省 |
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| 作者单位： | 解放军理工大学,通信工程学院卫星通信系,江苏,南京,210007 |
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| 摘 要： | 提出了一种基于FFT的星上多路FDMA/FSK信号解调算法。首先分析了该算法的基本原理,证明了其性能与FSK信号理想非相干解调性能相同,同时提出了利用FFT进行频差估计的算法;对系统进行了性能仿真,仿真结果与理论分析一致;该算法实现简单、复杂度低,适合星上处理。
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| 关 键 词： | 快速傅立叶变换 多路FSK解调 频差估计 |
| 文章编号： | 1000-436X（2006）08-0082-05 |
| 收稿时间： | 2006-02-17 |
| 修稿时间： | 2006-06-07 |
Study on demodulating multi-channel FDMA/FSKsignals on board based on FFT |
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| PAN Ke-gang,ZHANG Bang-ning,GUO Dao-sheng.Study on demodulating multi-channel FDMA/FSKsignals on board based on FFT[J].Journal on Communications,2006,27(8):82-86. |
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| Authors: | PAN Ke-gang ZHANG Bang-ning GUO Dao-sheng |
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| Affiliation: | Department of Satellite Communication of ICE, PLAUST, Nanjing 210007,China |
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| Abstract: | An algorithm was proposed to demodulate multi-channel FDMA/FSK signals based on fast Fourier trans-form(FFT).The algorithm was analysed in detail theoretically,and it was proved that the performance is the same as that of FSK with ideal non-coherent detection,and it also presented a method of estimating the frequency offset using FFT.Then the system was simulated,which validates the analysis.The algorithm is easy to be realized and is suitable for processing on board. |
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| Keywords: | fast Fourier transform demodulation of multi-channel FSK signals estimation of the frequency offset |
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