cosine wave
1.Abstract: A method by using 8031 single-clip microprocessor to get the syntonical bit information is presented,based on the characteristic of the modulated singal in ascending cosine envelope.The timer is locked at the maximum of the wave peak.The experiment results indicate that this method is feasible for 2 400 bps system.
2.On this basis, the formulations of shallow water equations arededuced from the cube-sphere coordination, using the modified differential quadrature (MDQ)special difference scheme and fourth order Runge-Kutta scheme to solve the shallow waterequations. The vector velocity expressions of six regions in the linear advection ofRossby-Haurwitz wave case and the linear advection of a cosine bell case are given from thecube sphere coordinate.
3.By employing the Fourier Bessel theorem to plane wave functions and through a series of deduction and inverse Fourier transform,one kind of series expansions of the product of Bessel functions and sine/cosine function in Cartesian coordinates is obtained. This expression can be used to compute the rectangular to circular waveguide junction and to analytically deduce its generatized S parameters,which are in good agreement with results from other papers and HFSS.
