| I/Q通道相位不一致对LFM脉压性能的影响 |
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| 引用本文： | 朱彬,刘爱华,吴成宾.I/Q通道相位不一致对LFM脉压性能的影响[J].电子科技大学学报（自然科学版）,2007,36(4):696-698,702. |
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| 作者姓名： | 朱彬 刘爱华 吴成宾 |
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| 作者单位： | 成都大学信息网络中心,成都,610106;成都理工大学通信所,成都,610059 |
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| 摘 要： | 推导了存I/Q通道相位误差的情况下的LFM脉冲压缩输出信号的表达式,定量分析了I/Q通道相位不一致性对LFM脉冲压缩性能的影响,为雷达接收机系统设计中I/Q通道相位误差的控制提供了理论的参考依据。理论分析和计算机仿真表明,在采用加窗方式抑制脉冲压缩输出旁瓣的情况下,I/Q通道的相位误差会脉冲压缩输出的主副比性能产生严重影响。
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| 关 键 词： | I/Q通道 线性调频 相位 脉冲压缩 |
| 收稿时间： | 2007-03-19 |
| 修稿时间： | 2007-03-19 |
Influence of Disagreement between I/Q Phases on the Performance of LFM Pulse Compression |
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| ZHU Bin,LIU Ai-hua,WU Chen-bin.Influence of Disagreement between I/Q Phases on the Performance of LFM Pulse Compression[J].Journal of University of Electronic Science and Technology of China,2007,36(4):696-698,702. |
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| Authors: | ZHU Bin LIU Ai-hua WU Chen-bin |
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| Affiliation: | 1.Center of Network & Information,Chengdu University Chengdu 610106;2.Communication Institute,Chengdu University of Science and Technology Chengdu 610059 |
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| Abstract: | This paper presents an expression of pulse compressed Linear Frequency Modulation (LFM) signal with I/Q phase error. The influence of the error on the performance of LFM digital pulse compression is analyzed in detail, a theoretical reference for controlling I/Q phase error in radar receiver designing is provided. The theoretical analysis and the simulating result show that the I/Q phase error will badly influence on the ratio between mainlobe and sidelobe of LFM digital pulse compression with window function for restraining the sidelobe. |
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| Keywords: | I/Q channel linear frequency modulation phase pulse compression |
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