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| 激光雷达信号小波降噪算法参数选取规则 | |
| 引用本文： | 康圣,王江安,陈冬,蒋冰莉,王乐东.激光雷达信号小波降噪算法参数选取规则[J].舰船科学技术,2012,34(2):86-89. |
| 作者姓名： | 康圣 王江安 陈冬 蒋冰莉 王乐东 |
| 作者单位： | 1. 海军91653部队,北京102249;海军工程大学电子工程学院,湖北武汉430033 2. 海军工程大学电子工程学院,湖北武汉,430033 3. 华中科技大学光电子科学与工程学院,湖北武汉,430074 |
| 基金项目： | 总装备部军用测试仪器型号资助项目(I17B200715) |
| 摘 要： | 对激光雷达信号降噪算法进行研究,分析指出小波分解降噪算法能较好地对其进行信号处理.重点对小波降噪算法参数选取进行研究,利用激光雷达仿真信号为例进行仿真实验.结果表明,选用尺度参数为4的coif4小波为基函数,采用启发式阈值的软阈值处理效果较好.该降噪算法能在能量损失较低的前提下极大提高信噪比,为后续的数据分析提供更多高精度数据进而提高探测精度. |
| 关 键 词： | 激光雷达 信号处理 小波变换 降噪 |
The parameter selection of wavelet de-noising algorithm for lidar backscattering signal |
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| KANG Sheng , WANG Jiang-an , CHEN Dong , JIANG Bing-li , WANG Le-dong.The parameter selection of wavelet de-noising algorithm for lidar backscattering signal[J].Ship Science and Technology,2012,34(2):86-89. | |
| Authors: | KANG Sheng WANG Jiang-an CHEN Dong JIANG Bing-li WANG Le-dong |
| Institution: | 1.The Army 91653 of Navy,Beijing 102249,China; 2.College of Electronic Engineering,Naval University of Engineering,Wuhan 430033,China; 3.College of Optelectronie Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
| Abstract: | The de-noising method of lidar backscatter signals is discussed in this paper.In order to detect the lidar weak signals buried in noises,it was pointed out that the wavelet transform method is an efficient tool for lidar signal analysis after analysis.This paper particularly studies the method for parameter selection of wavelet de-noising algorithm.Utilizing the simulated lidar backscatter signals,the simulation experiment has been carried out.The results showed that,it can lose less energy and substantial increase signal to noise ratio using this algorithm.On this premise,it can provide more high accuracy data and increase detection accuracy. |
| Keywords: | lidar backscatter signal analysis wavelet transform de-noising |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |