Statistics Analysis of the Effective Spectrum of the Soft Terrain Surface

The authors have measured the spectrums of the soft terrain surface by the measuring equipment of the soft terrain roughness (spectrum of the original terrain surface, spectrum of rut, spectrum of effective terrain surface), and according to testing results have put forward the relation of the effective spectrum of the soft terrain in consideration of the influence of the soil and the tyres. Results of test have shown that the good agreement is shown by comparing the calculated results with measured ones.