| 基于匹配信号变换的非线性调频干扰抑制方法 |
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| 引用本文： | 邵高平,安建平. 基于匹配信号变换的非线性调频干扰抑制方法[J]. 北京理工大学学报, 2010, 30(1): 83-87 |
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| 作者姓名： | 邵高平 安建平 |
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| 作者单位： | 北京理工大学,信息与电子学院,北京,100081;解放军信息工程大学,信息工程学院,河南,郑州,450002;北京理工大学,信息与电子学院,北京,100081 |
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| 摘 要： | 根据匹配信号变换特性,提出了一个基于匹配信号变换(MST)的特定时频结构(双曲线型、指数型)非线性调频干扰的抑制方法.推导和分析了基于匹配信号变换的参数估计均方误差,该误差与相位函数有关.仿真结果验证了该干扰抑制方法不仅能有效抑制单分量、多分量的特定时频结构非线性调频干扰,而且容易实现,提高了干扰抑制算法的时效性.
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| 关 键 词： | 匹配信号变换 干扰抑制 非线性调频干扰 直扩通信系统 |
| 收稿时间： | 2008-12-25 |
Suppression of Nonlinear Frequency Modulation Interferencein DSSS Based on Matched Signal Transform |
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| SHAO Gao-ping and AN Jian-ping. Suppression of Nonlinear Frequency Modulation Interferencein DSSS Based on Matched Signal Transform[J]. Journal of Beijing Institute of Technology(Natural Science Edition), 2010, 30(1): 83-87 |
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| Authors: | SHAO Gao-ping and AN Jian-ping |
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| Affiliation: | 1.School of Information and Electronics;Beijing Institute of Technology;Beijing 100081;China;2.School of Information Engineering;Information Engineering University of PLA;Zhengzhou;He'nan 450002;China |
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| Abstract: | A method of suppressing the non-linear chirp interference with specific time-frequency structure is proposed according to the characteristics of matched signal transform(MST).The mean square error of pararmeters estimation based MST is analysed.The simulation results showed that this method can not only suppress nonlinear frequency modulation time-varying interference effectively,but improve the real time performance also. |
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| Keywords: | matched signal transform interference suppression nonlinear frequency modulation interference direct-sequence spread spectrum(DSSS) communication system |
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