| 基于相关滤波和哈达玛变换的帧同步码识别 |
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| 引用本文： | 白彧,杨晓静,王懋. 基于相关滤波和哈达玛变换的帧同步码识别[J]. 探测与控制学报, 2011, 33(3): 69-72,80 |
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| 作者姓名： | 白彧 杨晓静 王懋 |
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| 作者单位： | 解放军电子工程学院,安徽合肥,230037 |
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| 摘 要： | 为从侦收到的信息中得到帧同步码,提出了基于相关滤波及哈达玛变换的识别方法。该方法先利用二次相关滤波区分信息码和帧同步码,然后利用哈达玛变换压缩数据处理量识别出帧长,最后通过模糊匹配法进一步识别出同步码的同步起始位和码型。仿真结果表明:在较高误码率的影响下,该方法可以利用较少的数据量快速准确地建立帧同步,并具有较好的识别效果。
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| 关 键 词： | 相关滤波 哈达玛变换 帧同步码 识别 信息对抗侦察 |
Recognition Method of Frame Synchronization Codes Based on Relativity Filter and Hadamard Transformation Algorithm |
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| BAI Yu,YANG Xiaojing,WANG Mao. Recognition Method of Frame Synchronization Codes Based on Relativity Filter and Hadamard Transformation Algorithm[J]. Journal of Detection & Control, 2011, 33(3): 69-72,80 |
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| Authors: | BAI Yu YANG Xiaojing WANG Mao |
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| Affiliation: | BAI Yu,YANG Xiaojing,WANG Mao(Electronic Engineering Institute,Hefei 230037,China) |
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| Abstract: | In order to recognize the frame synchronization codes of obtained information,a recognition method based on relativity filtering and Hadamard transformation algorithm was proposed in this paper.At first,using twice relativity filtering to distinguish the information codes from frame synchronization codes,then,the frame length was recognized by using Hadamard transformation in order to compress the amount of data.Finally,the fuzzy matching algorithm made further recognition to judge the initial point and sty... |
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| Keywords: | relativity filtering hadamard transformation frame synchronization codes recognition information countermeasure reconnaissance |
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