基本PV模型，需改进 根据T，G,V可输出I-U,U-P曲线-basic PV ，improvemention is needed

! This FUNCTION solves the finite depth dispersion relationship: ! ! k*tanh(k*h)=(Omega^2)/g ! ! for k, the wavenumber (WaveNumber) given the frequency, Omega, ! gravitational constant, g, and water depth, h, as inputs. A ! high