| 宽带扫频干扰下FH/MFSK系统性能分析 |
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| 引用本文： | 董彬虹,杜洋,周兰林,陈敬意.宽带扫频干扰下FH/MFSK系统性能分析[J].电子科技大学学报（自然科学版）,2014,43(5):658-662. |
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| 作者姓名： | 董彬虹 杜洋 周兰林 陈敬意 |
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| 作者单位： | 1.电子科技大学通信抗干扰技术国家级重点实验室 成都 611731 |
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| 基金项目： | 国家自然科学基金(61201126)；新世纪优秀人才支持计划(NCET-11-0058)；四川省青年科技基金 |
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| 摘 要： | 针对FH/MFSK系统, 将宽带扫频干扰带宽最小分辨率精确到MFSK信号带宽的1/M, 分别在忽略背景噪声和AWGN信道两种条件下, 对系统的抗干扰性能进行了理论推导, 给出了误比特率的闭合表达式, 并对理论结果进行了仿真验证. 结果表明, 当干扰带宽越窄, 干扰带宽最小分辨率对系统的误比特率结果影响越大; AWGN信道中, 在干扰功率、带宽一定的条件下, 系统误比特率性能随着扫频干扰的速率增加而下降. 理论与仿真结果一致, 证明了理论推导的正确性.
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| 关 键 词： | AWGN信道 误比特率 宽带扫频干扰 跳频 最小干扰带宽分辨率 |
| 收稿时间： | 2013-02-25 |
Performance Analysis of Broadband Frequency Sweeping Jamming for FH/MFSK Systems |
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| DONG Bin-hong,DU Yang,ZHOU Lan-lin,CHEN Jing-yi.Performance Analysis of Broadband Frequency Sweeping Jamming for FH/MFSK Systems[J].Journal of University of Electronic Science and Technology of China,2014,43(5):658-662. |
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| Authors: | DONG Bin-hong DU Yang ZHOU Lan-lin CHEN Jing-yi |
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| Affiliation: | 1.National Key Laboratory of Science and Technology on Communications,University of Electronic Science and Technology of China Chengdu 611731 |
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| Abstract: | The minimum resolution of the broadband frequency sweeping jamming (BFSJ) bandwidth is set to 1/M of the MFSK signal bandwidth, theoretical derivation of the anti-jamming performance for FH/MFSK systems in noise-free environment and additive white Gaussian noise (AWGN) channels are derived, respectively. The closed-form expressions of bit error rate (BER) are given and validated by computer simulations. The theoretical and simulation results show that the minimum resolution of jamming bandwidth has more influence on the BER performance when the jamming bandwidth becomes smaller. With the increases in the sweeping rate, the BER performance decreases under the given power of sweeping jamming and the bandwidth over AWGN channels. |
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| Keywords: | AWGN channel bit error rate broadband frequency sweeping jamming frequency hopping minimum resolution of jamming bandwidth |
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