| 基于DVB-S2系统APSK信号的分析与干扰仿真 |
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| 引用本文： | 田上成,王可人,焦传海,王喜风.基于DVB-S2系统APSK信号的分析与干扰仿真[J].上海航天,2012,29(5):67-72. |
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| 作者姓名： | 田上成 王可人 焦传海 王喜风 |
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| 作者单位： | 合肥电子工程学院,安徽合肥,230037 |
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| 摘 要： | 针对DVB-S2系统采用的幅度相位键控(APSK)等高阶调制方式,分析了APSK信号的调制与解调原理,推导了16APSK信号的误比特率(BER)。仿真讨论了基于DVB-S2系统APSK信号在受不同噪声调制干扰和数字调制信号干扰时的误比特率及干扰效果。结果表明:在低干信比(J/s)时数字调制干扰信号干扰效果更好。研究结果可为APSK信号的抗干扰性能研究提供参考。
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| 关 键 词： | APSK 噪声调制干扰 数字信号干扰 误比特率 |
Analysis and Simulation of Jamming APSK Signals Based on DVB-S2 System |
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| TIAN Shang-cheng,WANG Ke-ren,JIAO Chuan-hai,WANG Xi-feng.Analysis and Simulation of Jamming APSK Signals Based on DVB-S2 System[J].Aerospace Shanghai,2012,29(5):67-72. |
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| Authors: | TIAN Shang-cheng WANG Ke-ren JIAO Chuan-hai WANG Xi-feng |
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| Institution: | (Hefei Electronic Engineering Institute, Hefei 230037, Anhui, China) |
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| Abstract: | The principles of APSK modulation and demodulation were analyzed for the high-order digital modulation in DVB-S2 system in this paper. The bit error rate （BER） for 16APSK was theoretically derived. The BER and effects of various noise modulation jamming and the digital modulation jamming for APSK based on DVB- $2 system were obtained through simulation. The simulation results were showed that the digital modulation jamming was efficient under the situation of low signal interference rate. The results could provide references to the study of anti-jamming. |
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| Keywords: | APSK Noise modulation jamming Digital modulation jamming BER |
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