| 边带相关置换算法的窄带干扰抑制技术实现 |
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| 引用本文： | 王卓刚,张晓林,王二小.边带相关置换算法的窄带干扰抑制技术实现[J].应用科技,2010,37(6):40-42. |
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| 作者姓名： | 王卓刚 张晓林 王二小 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨150001 |
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| 摘 要： | 边带相关置换算法(SCR)适用于抑制频谱具有对称性的信号中的窄带干扰,算法具有处理速度快、计算量小、对信号成分损失小、抑制效果明显等优点,在强干扰下,能较好地保留信号成分抑制干扰成分,对变换域干扰置零方法有较大性能优势.在此主要研究采用边带相关置换算法抑制QPSK信号中窄带干扰的具体实现方法,研究对象为载频和干扰中心频率确知的接收端QPSK信号,结合算法特点给出了实现方法的设计方案,并通过实际应用证明了设计方法用于干扰抑制实现的有效性和可靠性.
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| 关 键 词： | 边带相关置换 窄带干扰 FPGA QPSK信号 抑制 |
Narrow-band interference technology realization on the basis of side correlation replacement algorithm |
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| WANG Zhuo-gang,ZHANG Xiao-lin,WANG Er-xiao.Narrow-band interference technology realization on the basis of side correlation replacement algorithm[J].Applied Science and Technology,2010,37(6):40-42. |
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| Authors: | WANG Zhuo-gang ZHANG Xiao-lin WANG Er-xiao |
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| Institution: | (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | Side correlation replacement（SCR） algorithm,which has such advantages as processing quickly,figuring in small quantity,losing a little in signals and having obvious effects on suppressing,is fit for suppressing the narrow-band interference in signals of spectrum with symmetry.In the strong interference,it can be better to keep the signals and suppress the interference,and has a great advantage in the interference nulling algorithm in transform processing.This essay mainly does research on the practical method of using side correlation replacement algorithm to suppress narrow-band interference in QPSK signals.The research targets are carrier frequency and the receiving part＇s QPSK signals,which are used to interfere with ascertained central frequency.This article also gives realistic design plan by combining algorithm,and proves the effectiveness and reliability of the design plan by practical application. |
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| Keywords: | FPGA |
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