| 基于自适应滤波的4FTSK信号解调方法及DSP实现 |
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| 引用本文： | 汪君华,单甘霖.基于自适应滤波的4FTSK信号解调方法及DSP实现[J].火力与指挥控制,2009,34(8). |
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| 作者姓名： | 汪君华 单甘霖 |
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| 作者单位： | 军械工程学院,河北,石家庄,050003 |
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| 基金项目： | 总装备部科研预研基金 |
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| 摘 要： | 针对某型通信设备中无线数传机的信号解调问题,研究了一种基于自适应滤波算法的解调4FTSK信号的方法.采用常用的最小均方误差(LMS)自适应算法,跟踪信号的单一频率,分析输出信号的包络,实现4FTSK信号的解调.详细介绍了此种解调方法的基本原理及实现过程.研究了用DSP技术来实现自适应解调算法,并给出了对4FTSK信号的解调结果.
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| 关 键 词： | 自适应滤波 解调 |
A 4FTSK Demodulation Method based on Self-adaptive Filtering and Its Realization with DSP |
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| WANG Jun-hua,SHAN Gan-lin.A 4FTSK Demodulation Method based on Self-adaptive Filtering and Its Realization with DSP[J].Fire Control & Command Control,2009,34(8). |
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| Authors: | WANG Jun-hua SHAN Gan-lin |
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| Institution: | Ordnance Engineering College;Shijiazhuang 050003;China |
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| Abstract: | A 4FTSK demodulation method based on self-adaptive filtering is studied with the problem of signal demodulation in wireless set.This article adopted a popular LMS algorithm to track single frequency of signal,analysed output envelop and realized the demodulation of 4FTSK.The basic principle and realization process of this method are introduced.Self-adaptive demodulation algorithm realized by DSP is studied and the result of demodulate 4FTSK is displayed. |
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| Keywords: | 4FTSK |
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