| 基于谱图-Radon变换二值积累的信号检测方法 |
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| 引用本文： | 苏峰,曲长文,何友,简涛,平殿发.基于谱图-Radon变换二值积累的信号检测方法[J].宇航学报,2006,27(1):69-71. |
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| 作者姓名： | 苏峰 曲长文 何友 简涛 平殿发 |
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| 作者单位： | 海军航空工程学院信息融合技术研究所,烟台,264001 |
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| 基金项目： | 教育部全国优秀博士学位论文作者专项基金 |
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| 摘 要： | 在低信噪比条件下，谱图-Radon变换可以有效地检测多个线性调频信号，但是当多个线性调频信号能量相差很大时，强信号的平台会将弱信号的峰值淹没，谱图-Radon变换就很难同时将这多个线性调频信号检测出来。本文提出了基于谱图-Radon变换二值积累的方法，这种方法可以有效的检测出被强信号平台掩盖的弱信号，具有较大的实用价值，仿真实验结果表明这种算法是有效的。
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| 关 键 词： | 谱图 Radon变换 二值积累 线性调频信号 |
| 文章编号： | 1000-1328（2006）01-0069-03 |
| 收稿时间： | 02 25 2004 12:00AM |
| 修稿时间： | 2004-02-252005-09-05 |
A Signal Detection Method Based on Spectrogram and Binary Integration of Radon Transform |
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| SU Feng,QU Chang-wen,HE You,JIAN Tao,PING Dian-fa.A Signal Detection Method Based on Spectrogram and Binary Integration of Radon Transform[J].Journal of Astronautics,2006,27(1):69-71. |
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| Authors: | SU Feng QU Chang-wen HE You JIAN Tao PING Dian-fa |
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| Institution: | Research Institute of Information Fusion, Naval Aeronautical Engineering Institute, Yantai 264001, China |
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| Abstract: | The Spectrogram-Radon transform can effectively detect several LFM signals in low Signal - Noise Ratio (SNR) environment. However, when the energy of these LFM signals diverges greatly, it is quite difficult to detect all LFM signals with the Spectrogram-Radon transform at the same time, because the platform of strong signals will cover weak signals. In this paper, a signal detection method based on Spectrogram and binary integration in Radon transform parameter space is proposed. By using this method, strong signals as well as the weak signals covered by the strong signals could be detected simultaneously. It means that this method has high practicable value. Simulation results verify the effectiveness of this method. |
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| Keywords: | Spectrogram Radon transform Binary integration LFM signal |
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