HPM短脉冲雷达发射信号的重构与仿真

王朗; 雷方燕; 胡进光

doi:10.11884/HPLPB201931.190024

HPM短脉冲雷达发射信号的重构与仿真

doi: 10.11884/HPLPB201931.190024

王朗^{1, 2,},
雷方燕¹,
胡进光¹

1.
中国工程物理研究院应用电子学研究所, 四川绵阳 621900
2.
中国工程物理研究院研究生部, 北京 100088

详细信息

作者简介:
王朗(1992－), 男, 硕士研究生, 从事雷达信号处理方面的研究; imwanglang@163.com

中图分类号: TN957
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- 文章访问数: 1319
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- 被引次数: 0
出版历程
- 收稿日期: 2019-01-25
- 修回日期: 2019-03-19
- 刊出日期: 2019-07-15

Reconstruction and simulation of HPM short pulse radar transmitting signal

1.
Institute of Applied Electronics, CAEP, Mianyang 621900, China
2.
Graduate School of China Academy of Engineering Physics, Beijing 100088, China

摘要

摘要: 研究分析了HPM信号的包络相位等特征，得知其包络不规整而且相位存在抖动，故采用高斯多峰模型拟合其包络，多项式模型拟合其相位，结合包络与相位的拟合模型获得了HPM信号的脉冲调制模型，最后在Matlab中利用该重构方法对多个HPM信号进行重构，均获得了较小残差的重构信号，检验得知该方法能够对HPM短脉冲雷达发射信号实现准确有效的信号重构。
- 高功率微波 /
- 高斯多峰拟合 /
- 多项式拟合 /
- 重构仿真 /
- Matlab
Abstract: The high-power microwave (HPM) short pulse radar uses high power microwave as transmitting signal, which doesn't work well with the model of the conventional radar transmitting signal. This paper analyses the characteristics of HPM signal, and finds that it has irregular envelope and jittery phase. Therefore, we fit its envelope by Gauss multi-peak model and its phase by polynomial model. We obtain its pulse modulation model, and verify the method of reconstruction with small residual by Matlab. Our study is significant to the simulation of this new kind of radar.
- high-power microwave /
- multi-peak Gaussian fitting /
- polynomial fitting /
- reconstruction and simulation /
- Matlab

HTML全文

图 1 HPM信号的时域曲线

Figure 1. Time domain curve of HPM signal

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图 2 HPM信号的对数幅频曲线

Figure 2. Amplitude-frequency curve of HPM signal

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图 3 中频信号的瞬时相位

Figure 3. Instantaneous phase of IF signal

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图 4 瞬时相位局部图

Figure 4. Local diagram of instantaneous phase

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图 5 中频信号的瞬时频率

Figure 5. Instantaneous frequency of IF signal

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图 6 中频信号的包络

Figure 6. Envelope of IF signal

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图 7 降噪后的包络

Figure 7. Envelope after denoising

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图 8 不同K值时包络模型的误差平方和

Figure 8. Sum of squared error about envelope model with different K values

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图 9 不同K值时包络模型的均方根误差

Figure 9. Root mean squared error of envelope model with different K values

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图 10 中频信号的拟合包络

Figure 10. Fitted envelope of IF signal

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图 11 不同M值时相位模型的误差平方和

Figure 11. Sum of squared error about phase model with different M values

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图 12 不同M值时相位模型的均方根误差

Figure 12. Root mean squared error of phase model with different M values

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图 13 中频信号的相位抖动

Figure 13. Phase jitter of IF signal

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图 14 拟合相位的局部图

Figure 14. Local diagram of fitting phase

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图 15 重构后的中频信号

Figure 15. Reconstructed IF signal

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图 16 重构信号的残差

Figure 16. Residual of reconstructed signal

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