| 摘要: |
| 为了在低信噪比条件下获得较好的识别准确率，提出了一种基于积分二次相位函数（IQPF）的识别分类方法。根据不同信号的调频斜率的正负值完成信号的预分类，然后再利用不同信号的IQPF峰值-能量比以及功率谱估计实现信号的自动化分类。给出了识别流程图并进行了仿真实验，结果表明，该方法在信噪比大于-3dB时，其识别正确率达到90%以上，证明了方法的有效性和可行性。相关研究为雷达脉内调制类型的识别提供了一种切实可行的方法，具有一定的应用价值。 |
| 关键词: 电子对抗 雷达脉内调制 识别分类 峰值-能量比 |
| DOI： |
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| Radar intra-pulse modulation type recognition by using integral quadratic phase function |
| LV Ya-kun,YANG Cheng-zhi,WU Hong-chao,ZHANG Bo-lin |
| () |
| Abstract: |
| A recognition method based on integral quadratic phase function(IQPF) is presented in order to improve the correct recognition rate under low signal-to-noise ratio(SNR).The preliminary classification is completed according to the different signal frequency modulation slope .To implement the automatic identification,the IQPF peak-power ratio and power spectrum estimation are used.Recognition flow chart and the simulation experiment are given .The results indicate that the correct recognition rate can reach 90% or more when SNR is greater than -3 dB,so the method is feasible and effective.Research in this paper provides a feasible method for radar intra-pulse modulation types recognition,which has a certain application value. |
| Key words: electronic countermeasure radar intra-pulse modulation identification and classification peak-power ratio |
《电讯技术》编辑部 