Modeling and Simulation of Mountainous Terrain Based on Wavelet Construction
J. Liu · Ceshi jishu xuebao · 2010
By analyzing the features of real terrain and the characteristic of wavelet construction,the global terrain undulation was considered as low frequency of wavelet,and the local random wave was corresponded to its high frequency.Then an iterative model of terrain was founded,and the wavelet coefficients in different levels were created by different distribution parameters based on Gaussian statistics assumption.Therefore the features of natural terrain and the characteristic of wavelet construction were unified.The established terrain model is easy to realize and convenient to decompose.The simulation results show the feasibility of the model.