| DSSS系统频域干扰抑制最佳门限选择算法研究 |
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| 引用本文： | 张永飞,魏安全,孙玉琦. DSSS系统频域干扰抑制最佳门限选择算法研究[J]. 山西电子技术, 2011, 0(1): 82-84 |
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| 作者姓名： | 张永飞 魏安全 孙玉琦 |
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| 作者单位： | 解放军理工大学通信工程学院研究生4队;解放军理工大学通信工程学院无线通信教研室; |
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| 摘 要： | 为了提高DSSS系统的窄带干扰抑制能力,主要针对窄带干扰频域抗干扰算法进行研究。重点对频域处理中干扰门限的设定给出了一种改进的方法。该算法采用设定粗门限,然后逐次消除的算法,最后得到较理想的干扰门限值。经过仿真验证,该方法对于强窄带干扰或多个强窄带干扰在相同信噪比下能够比固定门限干扰抑制算法误码率改善许多。
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| 关 键 词： | 直接序列扩频 FFT 窄带干扰 抗干扰 干扰门限 |
The Research on Best Threshold of the Interference Suppression in Frequency Domain of DSSS System |
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| Zhang Yong-fei,Wei An-quan,Sun Yu-qi. The Research on Best Threshold of the Interference Suppression in Frequency Domain of DSSS System[J]. Shanxi Electronic Technology, 2011, 0(1): 82-84 |
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| Authors: | Zhang Yong-fei Wei An-quan Sun Yu-qi |
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| Affiliation: | Zhang Yong-fei1,Wei An-quan2,Sun Yu-qi1(1.Postgraduate Team 4,ICE,PLAUST,Nanjing Jiangsu 210007,China,2.Department of Wireless Communications,China) |
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| Abstract: | In order to improve the capacity of suppressing narrowband interference in DSSS,this paper mainly puts forward the improved algorithm that setting the interference threshold in the process of frequency domain.This improved algorithm provides the coarse threshold first and then successively cuts down it until the desirable value of interference threshold appears.By testing and verifying in the way of simulation,the result is that under the same SNR this new algorithm for thresholds of one or multiple strong ... |
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| Keywords: | DSSS FFT narrowband interference anti-interference interference threshold |
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