| 基于信息论的脉冲压缩雷达DRFM干扰检测技术 |
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| 引用本文： | 曹兰英,罗美方,吴 健.基于信息论的脉冲压缩雷达DRFM干扰检测技术[J].太赫兹科学与电子信息学报,2018,16(3):431-435. |
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| 作者姓名： | 曹兰英 罗美方 吴 健 |
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| 作者单位： | AVIC Leihua Electronic Technology Research Institute，Wuxi Jiangsu 214063，China,AVIC Leihua Electronic Technology Research Institute，Wuxi Jiangsu 214063，China and AVIC Leihua Electronic Technology Research Institute，Wuxi Jiangsu 214063，China |
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| 摘 要： | 信息熵是一种测量信号信息内容的重要手段，能够反映信号的信息量。针对脉冲压缩雷达数字射频存储(DRFM)干扰的检测问题，利用目标回波和干扰回波的分布差异，提出了基于信息论的脉冲压缩雷达DRFM干扰检测方法。以回波信息熵为检测统计量，设计二元干扰检测器，实现对脉冲压缩雷达DRFM干扰的检测。仿真实验验证了该方法的可行性和有效性，在RSN>0 dB时对相位编码和线性调频等脉压波形的切片重构干扰的检测概率>90%。
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| 关 键 词： | 脉冲压缩雷达 信息熵 二元干扰检测器 数字射频存储干扰检测 切片重构干扰 |
| 收稿时间： | 2017/1/7 0:00:00 |
| 修稿时间： | 2017/2/22 0:00:00 |
Detection of DRFM jamming for pulse compression radar based on information theory |
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| CAO Lanying,LUO Meifang and WU Jian.Detection of DRFM jamming for pulse compression radar based on information theory[J].Journal of Terahertz Science and Electronic Information Technology,2018,16(3):431-435. |
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| Authors: | CAO Lanying LUO Meifang and WU Jian |
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| Abstract: | Information entropy is an important technology to measure information of the signal. Considering the Digital Radio Frequency Memory(DRFM) jamming detection for pulse compression radar, a method of DRFM jamming detection based on information theory is proposed, by exploiting diversity of distribution between target signals and jamming. Using the information entropy of the echo as the detection statistic, the binary jamming detector is designed to detect the DRFM jamming. Simulation results validate the feasibility and effectiveness of the proposed method. While the RSN is above 0 dB, the DRFM jamming detection probability is up to 0.9 for pulse compression waveforms, such as phased code and Linear Frequency Modulation(LFM). |
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