一种基于变换矩阵的激光雷达数据无量纲统一化转换方法

A conversion method for lidar data non-dimensionalization and standardization based on transform matrix

激光雷达观测数据的特点是单点测量、数据格式与数值量纲不统一、结构多样。这种数据特点给数据之间的共享与分析利用带来困难。本文针对大气激光雷达数据的异构性,结合大气激光雷达数据的二维结构,将大气激光雷达观测数据处理方式转换为矩阵的运算,借鉴变换矩阵的基本思想,结合线性插值法填补缺失数据,并利用归一化方法对数据进行无量纲处理,给出激光雷达数据统一化转换模型,实现了数据无量纲统一化。

The characteristics of Lidar monitoring data are the single-point measurement,the inconsistency of data format and numerical dimention and structural diversification.These data characteristics can bring about difficulties for the co-sharing and analystical application of data.With an aim at the heterogeneity of atmospheric lidar data and in combination with the two-dimensional structure of lidar data,this paper converts the atmospheric lidar observed data format into the matric operations.Also,by means of basic idea of transform matrix and in combination with linear interpolation to fill the blank position of lidar data,the normalization method is adopted to carry out the dimensionless treatment of data and to give the lidar data standardized conversion model,whereby realizing the data non-dimensionalization and standardization.