| 一种保留相位谱的DS信号接收方法 |
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| 引用本文： | 王永民,郭建新.一种保留相位谱的DS信号接收方法[J].空军工程大学学报,2009,10(4):48-52. |
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| 作者姓名： | 王永民 郭建新 |
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| 作者单位： | 空军工程大学,电讯工程学院,陕西,西安,710077 |
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| 摘 要： | 为抑制接收DS信号中的窄带干扰,研究了基于DFT只保留相位谱的DS信号接收方法,给出了该方法的一种迭代实现算法,有效降低了相位谱计算的运算量.讨论了该算法在DS系统抑制窄带干扰中的应用原理,分析了该算法在加性高斯白噪声信道中的性能损失,给出了一种计算性能损失的方法.对采用相位谱保留算法接收DS信号进行了数值仿真,给出了在窄带干扰和多址干扰情况下,该算法与常规DS信号接收方法的对比数值仿真结果.仿真结果表明:采用文中的算法处理后,可有效抑制窄带干扰,在多址干扰情况下,保留相位谱处理后没有引起明显的性能损失.
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| 关 键 词： | DS扩谱 窄带干扰抑制 相位谱 迭代算法 |
A Phase Spectrum Reservation Receiving Method of DS Signal |
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| WANG Yong-min,GUO Jian-xin.A Phase Spectrum Reservation Receiving Method of DS Signal[J].Journal of Air Force Engineering University(Natural Science Edition),2009,10(4):48-52. |
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| Authors: | WANG Yong-min GUO Jian-xin |
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| Institution: | Telecommunication Engineering Institute;Air Force Engineering University;Xi'an 710077;China |
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| Abstract: | In order to mitigate narrow-band interference in DS system,a phase spectrum reservation processing is proposed in DS signal receiving and an iterative algorithm is employed in the method to reduce computational complexity.The suppressing narrow-band interference principle is discussed and the performance loss in AWGN channel is analyzed.A method of calculating the performance loss is presented.The numeric simulation results of receiving DS signal by phase reservation processing are presented for variety of ... |
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| Keywords: | DFT |
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