| 陈艳丽,郭良浩,宫在晓,刘建军,章伟裕,任岁玲.DEMON谱分析的瞬态与脉冲干扰抑制[J].,2025,44(5):1356-1362 |
| DEMON谱分析的瞬态与脉冲干扰抑制 |
| The instantaneous pulse interference suppression in DEMON spectrum analysis |
| 投稿时间：2024-04-12 修订日期：2025-09-03 |
| 中文摘要: |
| 在目标特征谱检测中,谱图质量对后续的目标识别较为关键。本文对特征谱图检测中出现的影响其质量的瞬时宽带强能量片问题进行研究,发现该现象是由原始信号中存在瞬时脉冲干扰信号导致。在此类瞬时脉冲干扰信号特征分析的基础上,本文提出了一种幅度模滤波器,将其与平方检波方法结合,在带通滤波处理之后,对信号中的瞬时脉冲干扰进行抑制处理。结果表明,该方法可以较大程度上去除瞬时干扰造成的demon谱图中的瞬时宽带强能量片,有效改善demon谱检测的质量。 |
| 英文摘要: |
| The quality of DEMON spectrum is important for target recognition. The phenomenon of instantaneous strong energy fragment in DEMON spectrum which affects the quality is analyzed and the reason is that the pulse interference exists in the original signal. According to the characteristics of the pulse interference, the method of amplitude modulus wavelet is proposed. It is used after the procedure of band pass filter in square detection to remove the pulse interference mostly. The result shows that the proposed method eliminates the instantaneous strong energy fragment in DEMON spectrum, thus the quality of DEMON spectrum is improved efficiently. |
| DOI：10.11684/j.issn.1000-310X.2025.05.026 |
| 中文关键词: demon谱质量 宽带强能量片 瞬时脉冲干扰 幅度模滤波 |
| 英文关键词: Quality of DEMON spectrum Instantaneous strong energy fragment Pulse interference Amplitude modulus wavelet |
| 基金项目: |
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