| 一种新的小波阈值去噪算法 |
| |
| 引用本文： | 金宝龙,李辉,赵乃杰,何海峰. 一种新的小波阈值去噪算法[J]. 弹箭与制导学报, 2011, 31(1): 167-169,176 |
| |
| 作者姓名： | 金宝龙 李辉 赵乃杰 何海峰 |
| |
| 作者单位： | 金宝龙,李辉,赵乃杰,JIN Baolong,LI Hui,ZHAO Naijie(西北工业大学电子信息学院,西安,710129);何海峰,HE Haifeng(骊山微电子公司,西安,710065) |
| |
| 基金项目： | 中国航天科技集团公司航天科技创新基金，西北工业大学种子基金 |
| |
| 摘 要： | 雷达一维高分辨距离像对噪声极为敏感。研究一种新的小波去噪算法得到高信噪比的雷达一维高分辨距离像是实现精确目标识别的关键。文中对比分析了小波模极大值去噪算法和小波阈值去噪算法,并在经典小波阈值去噪算法的基础上改进了阈值函数,提出了一种新小波阈值去噪算法。实验证明新的算法能够更好的提高雷达一维高分辨距离像的信噪比,有效抑制噪声敏感性。新算法结合了软、硬阈值算法的优点,灵活度高。
|
| 关 键 词： | 小波去噪 阈值 模极大值 雷达一维高分辨距离像 |
A De-nosing Algorithm of Wavelet Threshold Based on a New Threshold Function |
| |
| JIN Baolong,LI Hui,ZHAO Naijie,HE Haifeng. A De-nosing Algorithm of Wavelet Threshold Based on a New Threshold Function[J]. Journal of Projectiles Rockets Missiles and Guidance, 2011, 31(1): 167-169,176 |
| |
| Authors: | JIN Baolong LI Hui ZHAO Naijie HE Haifeng |
| |
| Affiliation: | JIN Baolong1,LI Hui1,ZHAO Naijie1,HE Haifeng2(1 School of Electronics and Information,Northwestern Polytechnical University,Xi'an 710129,China,2 Lishan Microelectronic Company,Xi'an 710065,China) |
| |
| Abstract: | The high resolution range profile is sensitive to noise signal.The key technology of accurate target recognition is how to find a new type of de-nosing algorithm of wavelet to get high SNR high resolution range profile.By measuring and analyzing de-nosing algorithm of wavelet modular maximum and de-nosing algorithm of wavelet threshold,the threshold function was improved and a new type of de-nosing algorithm of wavelet threshold was put forward based on the classical algorithm.The experiment evidences that ... |
| |
| Keywords: | wavelet de-nosing wavelet threshold modulus maxima high resolution range profile |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
