Based on the suspension model of a homemade car with 5-degree freedom and a road surface model in time domain, the nonlinear spring and damping parameters were optimized in time domain.
It is found that strong relativity exists between surface wave time domain signal and testing sections geological condition by means of studying on characteristic anal.
通过对大量野外面波测试信号的分析发现时域信号与测试区域地质具有很大的相关性。
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This paper introduces an analyzing method for evaluating the color even degree on the tile surface in two dimensional frequency domain, that is by adopting two dimensional discrete fourier transform.