山地地理测绘勘探中反射式激光雷达回波特征优化监测研究

Study on Echo Characteristic Optimal Monitoring of Reflective Lidar in Mountain Geographical Mapping and Exploration

地理测绘勘探激光雷达回波特征在山地区域应用,会出现光斑回波叠加,导致坐标混乱,特征监测效果差;文章结合反射式激光雷达,在采集山地地理特征光斑数据的基础上,优化设计反射式激光雷达在山地地理测绘勘探中的应用过程,并确定其相关参数;通过分区对山地地理一一扫描,整合扫描结果,采集该山地地理特征的激光雷达回波数据;设计一种光斑回波波形分解模型,进行山地地质环境监测序列的小波去噪处理;通过该处理获取地理特征,去除光斑回波叠加干扰,在通过坐标和高程转换,解决坐标混乱问题,完成特征的监控;实验结果表明:该方法与传统的方法比较,能够更加有效监测出山地地理的变形量,监测效果好、监测性能较高。

The echo features of geographical mapping and exploration lidar are applied in mountainous areas,the overlapping of light spot echoes will occur,which leads to coordinate confusion and poor feature monitoring effect.Combined with reflective lidar in this paper,the application process of reflective lidar in mountain geographic mapping and exploration is optimized and its relevant parameters are determined based on the collection of mountain geographic feature spot data with reflective lidar.By scanning the mountain geography one by one and integrating the scanning results,the lidar echo data of the mountain geographical characteristics are collected.A light spot echo waveform decomposition model is designed for the wavelet denoising process of mountain geological environment monitoring sequence;Through this process,the geographical features are obtained to remove the overlapping interference of light spot echo,the coordinate and elevation conversion is used to solve the coordinate confusion,and complete the geographical feature monitoring.The experimental results show that compared with traditional methods,this method can more effectively monitor the deformation of mountain geography,with good monitoring effect and high monitoring performance.