| 阵列通道幅相误差影响通信系统EVM指标的分析与评估 |
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| 引用本文： | 董爱娟,赵红梅. 阵列通道幅相误差影响通信系统EVM指标的分析与评估[J]. 煤炭技术, 2010, 29(9) |
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| 作者姓名： | 董爱娟 赵红梅 |
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| 作者单位： | 1. 秦皇岛职业技术学院,机电工程系,河北,秦皇岛,066100
2. 郑州轻工业学院,电气信息工程学院,郑州,450002 |
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| 摘 要： | 误差矢量幅度(error vector magnitude:EVM)被广泛地用来测试通信系统的性能。文中研究了阵列通道幅相误差对星载数字波束形成(DBF)多波束相控阵天线系统EVM指标的影响,推导了幅相误差与EVM关系的解析表达式。仿真结果还表明,同样幅相误差均方差的情况下,相位误差对EVM的影响较大。
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| 关 键 词： | EVM 幅相误差 DBF 相控阵天线 |
Analysis and Evaluation on Array Channels'Amplitude and Phase Errors Effects on EVM for Communication Systems |
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| DONG Ai-juan,ZHAO Hong-mei. Analysis and Evaluation on Array Channels'Amplitude and Phase Errors Effects on EVM for Communication Systems[J]. Coal Technology, 2010, 29(9) |
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| Authors: | DONG Ai-juan ZHAO Hong-mei |
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| Abstract: | The error vector magnitude(EVM) is extensively applied as a measure of commun-ication systems' performance.In this paper,the effects of amplitude and phase errors for satellite digital beam-forming(DBF) multi-beam phased array antenna systems on EVM are investigated.The analytic expression for EVM about array channels' amplitude and phase errors is derive.The simulation results also show that the effect of the phaes error on EVM is larger than the amplitude error on the same amplitued and phase variance. |
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| Keywords: | EVM DBF |
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