| 脉冲信号检测中的窄带干扰抑制器设计 |
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| 引用本文： | 韩煜,张东坡,彭小名,赵艳. 脉冲信号检测中的窄带干扰抑制器设计[J]. 微电子学与计算机, 2011, 28(9): 119-122 |
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| 作者姓名： | 韩煜 张东坡 彭小名 赵艳 |
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| 作者单位： | 1. 通信系统信息控制技术国家级重点实验室,浙江嘉兴314033／中国电子科技集团公司第三十六研究所,浙汀嘉兴314033
2. 中国电子科技集团公司第三十六研究所,浙汀嘉兴,314033 |
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| 摘 要： | 针对脉冲信号检测中的窄带信号干扰问题,从时域和频域角度分析了不同的干扰抑制措施,进一步基于数字调谐和一阶陷波方法,在FPGA上实现了简洁高效,可独立工作的干扰抑制电路,并推导了相应的干扰抑制条件.该方法通过频谱数据判定脉冲检测中的干扰信号频率和带宽,并经由数字下变频将干扰信号搬移至零频,利用简单的高通滤波器陷波后,再数字上变频恢复原始脉冲信号.实验结果表明：该干扰抑制器能够以较小的代价滤除一定频率间隔的窄带干扰,脉冲参数估计在容许均方差范围之内.
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| 关 键 词： | 脉冲检测 窄带干扰 干扰抑制器 FPGA |
Design of Narrowband Interference Suppressor for Pulse Signal Detection |
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| HAN Yu,,ZHANG Dong-po,PENG Xiao-ming,ZHAO Yan. Design of Narrowband Interference Suppressor for Pulse Signal Detection[J]. Microelectronics & Computer, 2011, 28(9): 119-122 |
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| Authors: | HAN Yu ZHANG Dong-po PENG Xiao-ming ZHAO Yan |
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| Affiliation: | HAN Yu1,2,ZHANG Dong-po2,PENG Xiao-ming2,ZHAO Yan1,2(1 National Laboratory of Information Control Technology for Communication System,Jiaxing 314033,China,2 The 36th Institute of CETC,China) |
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| Abstract: | This paper analyzes narrowband interference suppression using temporal and frequency processing techniques for pulse signal detection.We implement a stand-alone interference suppressor on field programmable gate array(FPGA) based on digital tuning and 1st-order notch filtering.When a pulse signal along with narrowband interference is detected through spectral measurements,the interference signal is translated to zero frequency using down-converter and filtered out by a simple high-pass infinite impulse resp... |
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| Keywords: | pulse signal detection narrowband interference interference suppressor FPGA |
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