采用Levenberg Marquardt的逐步递进波形分解方法

Step Progressive Decomposition of Full Waveform Data Using Levenberg Marquardt

针对机载全波形Li DAR波形数据分解问题,提出一种采用Levenberg Marquardt的逐步递进波形分解方法。该方法基于Levenberg Marquardt的非线性最小二乘拟合算法,选取高斯函数模型并采用逐步递进的波形分解方式得到准确的模拟波形。对Riegl数据中的2条典型波形进行分解实验,并与普通非线性最小二乘方法的结果进行对比分析,证明该方法是可行有效的。

For airborne full waveform Li DAR data decomposition, a method of the stepwise decomposition of full waveform data was proposed by using Levenberg Marquardt here, which employs stepwise decomposition way and selects Gaussian function by using non-linear least squares fitting algorithm——Levenberg Marquardt to obtain exact analog waveform. The experiments on 2 typical waveforms in Riegl data prove that the method is available and effective.